SENSBLUE ATLAS/Datasheet
Datasheet
1. Table of SENSBLUE ATLAS Reference ID Model Number
| Paxxxxxxxx | |||||
| PAxxxxxxxx |
2. General Description
SENSBLUE ATLAS is a single board computer that connects sensors and assets, runs control logic and ships to production without platform changes.
Designed for industrial teams who need one dependable path from experiments to operations.
2.1 Key Features
Processor:
- Raspberry Pi CM4 (quad-core Cortex-A72)
I/O:
- 12 DIO (8 Digital Outputs and 4 Digital Input)
- 6 AIO (4 Analog Inputs and 2 Analog Outputs)
- 2 relays
Industrial Bus:
- RS-485
- CAN
- 2× Ethernet port (Independently managed)
Communication:
- Integrated LTE
- Wi-Fi
- BLE
- USB
Interface & Services:
- 1.47″ IPS TFT display + joystick for local setup and feedback.
- Includes 1 GB of data (up to 500 MB LTE + 500 MB DB storage) via sensblue.cloud — no external SIM required.
- EU-hosted servers, TLS, weekly backups, VPN on request.
- Other versions under request.
3. Hardware Specifications
| Parameter | Specification |
|---|---|
| Platform | Raspberry Pi Compute Module 4 (CM4) |
| Processor | Broadcom BCM2711 Quad-core Cortex-A72 (ARM v8) |
| CPU Frequency | 1.5 GHz |
| RAM | 4GB LPDDR4 |
| Storage | 32 GB eMMC |
| Selected Variant | CM4102032-4 GB RAM/ 32 GB eMMC / Wi-Fi / BLE |
| PCle | 1 x PCle Gen 2.0 (1 lane) |
| HDMI | 1 interfaces |
| USB | 2 x USB 2.0 |
4. Power
| Parameter | Specification |
|---|---|
| Input voltage | 12-24 VDC ± 5% |
| Reverse polarity protection | Yes |
| Overcurrent protection | Resettable PTC fuse |
| Surge protection | TVS clamp for transient events |
| Isolation | No isolation |
| Typical consumption | < 15 W |
| Maximum consumption | 25 W (all peripherals active) |
5. Digital Inputs
| Parameter | Specification |
|---|---|
| Channels | 4 |
| Input voltage | 0-24 VDC |
| Logic LOW | Acording to EN 61131-2 Type I and Ill |
| Logic HIGH | Acording to EN 61131-2 Type I and Ill |
| Input type | Sourcing (PNP) |
| Input current | Acording to EN 61131-2 Type I and Ill |
| Isolation | Funcional Safety Gavanic isolation |
| Isolation Voltage | Functional isolation between channels on the field side +- 60V |
| Isolation Voltage DIN VDE V 0884-11 | Maximum working isolation voltage 400V RMS |
| Isolation Voltage DIN VDE V 0884-11 | Maximum surge isolation voltage 1 kV RMS |
| Special feature | Can be used as fast inputs until 100Hz |
5.1 Wiring
6. Digital Outputs (Relay)
| Parameter | Specification |
|---|---|
| Channels | 2 |
| Type | Mechanical relay |
| Switching capacity | 2 A@ 30 VDC |
| Isolation | 1000 VAC galvanic isolation |
| Lifetime (nominal load) | ≥ 100,000 cycles |
| Lifetime (no load) | ≥ 100,000,000 cycles |
6.1 Wiring
7. Digital Outputs (Transistor/ SSR)
| Parameter | Specification |
|---|---|
| Channels | 8 |
| Type | PNP (sourcing) SSR |
| Maximum current | 300 mA per channel |
| Maximum voltage | 24 VDC |
| Isolation | Funcional Safety Gavanic isolation |
| Isolation Voltage DIN VDE V 0884-17 | Maximum transient isolation voltage 1 kV RMS |
7.1 Wiring
8. Analog Inputs
| Parameter | Specification |
|---|---|
| Channels | 4 |
| Mode | Voltage or current configurable per channel |
| Voltage range | 0-10 V |
| Current range | 0/4-20 mA |
| ADC resolution | 16 bits |
| ADC Sample Rate | 32 samples/sec |
| Accuracy | ≤ ±1.0% FSR |
| Input impedance (voltage) | > 100 kΩ |
| Input impedance (current) | 100 Ω |
| Protection | TVS + analog filtering |
| Sampling rate | ≥ 10 Hz per channel |
| Isolation | Funcional Safety Gavanic isolation |
| Isolation Voltage | Maximum transient isolation voltage 1 kV RMS |
8.1 Wiring
9. Analog Outputs
| Parameter | Specification |
|---|---|
| Channels | 2 |
| Output type | Current |
| Range | 0-20 mA |
| Optional range | 4-20 mA (software configurable) |
| Resolution | 12 |
| Accuracy | ≤ ±1.0% FSR |
| Isolation | Funcional Safety Gavanic isolation |
| Isolation Voltage | Maximum transient isolation voltage 1 kV RMS |
9.1 Wiring
10. Communication Interfaces
10.1 Ethernet
| Parameter | Specification |
|---|---|
| Ports | 2 x RJ45 |
| Port 1 | 10/100 Mbps |
| Port 2 | 0/100/1000 Mbps (native CM4) |
| Indicators | Link + Activity LEDs |
10.2 RS-485
| Parameter | Specification |
|---|---|
| Mode | Half-duplex |
| Control | TX_EN line |
| Protocol | Transparent/ any |
| Isolation | None |
10.2.1 Wiring
10.3 USB
| Parameter | Specification |
|---|---|
| Ports | 2 |
| Type | USB-A |
| Standard | USB 2.0 Host |
| Maximum current | 400 mA per port |
| Protection | Overcurrent protection |
10.4 HDMI
| Parameter | Specification |
|---|---|
| Ports | 1 |
| Connector | HDMI full-size |
| Maximum resolution | Depends on CM4 and OS |
11. RF Communications
| Technology | Specification |
|---|---|
| Wi-Fi | Integrated in CM4 |
| BLE | Integrated in CM4 |
| LTE | M.2 NGFF modem SIM7600G |
| SIM | External access |
11.1 Antenna Connectors
| Connector | Usage |
|---|---|
| RP-SMA | Wi-Fi / BLE |
| SMA | LTE |
12. Local Peripherals
| Peripheral | Description |
|---|---|
| Temperature sensor | Internal board temperature monitoring |
| Non-volatile memory | Persistent storage |
| Security IC | Microchip ATECC608A |
| RTC | Real Time Clock with battery backup |
13. HDMI
13. 1 Display
| Parameter | Specification |
|---|---|
| Type | IPS TFT LCD |
| Interface | SPI |
| Size | 1.47" |
| Resolution | ≥ 172 X 320 |
| Backlight | LED |
| Mounting | Front mounted with transparent window |
13. 2 Joystick
| Parameter | Specification |
|---|---|
| Positions | 5 (Up/ Down/ Left/ Right/ Enter) |
| Type | Mechanical tactile switch |
| Interface | GPIO Expander |
14. Mechanical
| Parameter | Specification |
|---|---|
| Mounting | DIN rail (EN 60715) |
| Enclosure | MAT0091092 (same as iSense / iCee) |
| Protection rating | IP20 |
| Mounting method | DIN rail snap-fit |
15. Environmental
| Parameter | Specification |
|---|---|
| Operating temperature | -10 °C to +60 °C |
| Storage temperature | -20 °C to +80 °C |
| Humidity | 5-95% non-condensing |
| Vibration | IEC 60068-2-6 |
| Shock | IEC 60068-2-27 |
16. Certifications
| Certification | Standard |
|---|---|
| CE | Yes |
| EMC | 2014/30/EU |
| Radio | 2014/53/EU (RED) |
| Ro HS | 2011/65/EU |
17. Connectivity
| Parameter | Specification |
|---|---|
| Connector type | Pluggable System Terminal Block |
| Pitch | 3.5 mm |
| Layout | Dual-row |
| Identification | Side panel silk screen |
| Fixation | Mechanical locking or spring clamp |
| Protection | Mechanical reverse insertion protection |
18. Expansion
| Feature | Description |
|---|---|
| Piggyback area | Reserved PCB area |
| Compatibility | Fully compatible with existing FW |
| Power rails available | Vin, 5 V, 3.3 V |
| Interfaces available | 12C, SPI, UART, GPIO |
| External 1/0 lines | 32 lines routed to external connectors |
| Storage expansion | M.2 NVMe SSD connector |
19. External Interfaces
Front View
Bottom View
20. Pinouts
Top View
21. System Type
Raspian
Debian GNU/Linux 13 (trixie) Version 13.2 Linux atlas 6.12.47 +rpt-rpi-v8 #1 SMP PREEMPT
Debian 1 :6.12.47-1 +rpt1 (2025-09-16) aarch64 GNU/Linux.
22. Network Information
There is three ways to connect to the device. IP and state of the connection be checked on the LCD Network Interface.
22.1 Eth1 (ethO)
Client dynamic IP obtained by DHCP server.
22.2 Eth2 (eth1)
Static IP: 93.48.86.253
22.3 Access Point (wlanO)
IP: 192.168.30.1
23. Software Information
| Node-Red | Grafana | lnfluxDB | |
| Version | 4.1.4 | 12.3.1 | 2.8.0 |
| Port | 1880 | 3000 | 8086 |
| State | Clean | Clean | Clean |
| Authentication | None | User/Pass (admin/admin) | Not defined, configured on first time interface login. |
| GUI on | http://<device-ip>:1880 | http://<device-ip>:3000 | http://<device-ip>:8086 |
24. MQTT Broker
port: 1883
address: AP-> 192.168.30.1
Eth1: 93.48.86.253
user: < not needed>
login <not needed>
24.1 Relay Outputs Actor
24.1.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this Area requires no credentials.
a) Set/reset digital output pin/pins state
Both relays default state is open.
Req-Topic: relayOutputs/config/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"D01": {
"state": "open"
},
"D02": {
"state": "open"
}
}
}
}
Reply-Topic: relayOutputs/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"D01": {
"success": true,
"state": "open"
},
"D02": {
"success": true,
"state": "open"
}
}
}
}
b) Get all relays state
Req-Topic: relayOutputs/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "READ"
}
}
Reply-Topic: relayOutputs/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"D01": {
"success": true,
"state": "open"
},
"D02": {
"success": true,
"state": "close"
}
}
}
}
c) Set all relays state
Req-Topic: relayOutputs/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "SET",
"taskParams": {
"D01": {
"state": "open"
},
"D02": {
"state": "close"
}
}
}
}
Reply-Topic: relayOutputs/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"D01": {
"success": true,
"state": "open"
},
"D02": {
"success": true,
"state": "close"
}
}
}
}
24.2 RTC Actor
24.2.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this Area requires no credencials.
a) Set timer/alarm interruption
mode: Timer, alarm or none.
alarmSet: Date and time for alarm interruption (No effect if mode is timer or none).
timerSetSeconds: Period in seconds for timer interruption (No effect if mode is alarm or none).
Req-Topic: clock/config/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"CLOCK_SET_MODE": {
"mode": "timer",
"alarmSet": "[timestamp epoch ms]",
"timerSetSeconds": "<INT>"
}
}
}
}
Req-Topic: clock/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"success": true,
"CLOCK_SET_MODE": {
"mode": "timer",
"alarmSet": "[timestamp epoch ms]",
"timerSetSeconds": "<INT>"
}
}
}
}
b) Toggle RTC sync logic (described below)
tcState: State of the synchronization logic of the RTC, this value is non-persistent so every-time a reboot happens the value return to default (by default the value is ON)
Req-Topic: clock/config/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "TOGGLE"
}
}
Req-Topic: clock/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"success": true,
"rtcState": "OFF"
}
}
}
c) Read clock configs
mode: Timer, alarm or none.
alarmSet: Date and time for alarm interruption (No effect if mode is timer or none).
timerSetSeconds: Period in seconds for timer interruption (No effect if mode is alarm or none).
rtcState: Current state of the synchronization logic of the RTC.
Req-Topic: clock/config/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "READ"
}
}
Reply-Topic: clock/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"success": true,
"CLOCK_CONFIGS": {
"mode": "timer",
"alarmSet": "[timestamp epoch ms]",
"timerSetSeconds": "<INT>",
"rtcState": "ON"
}
}
}
}
d) Read clock
Req-Topic: clock/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"success": true,
"timestamp": "[timestamp epoch ms]"
}
}
}
24.2.2 Synchronization loop flowchart (every 30 seconds)
RTC Actor - Overview
24.3 Core System Health Actor
24.3.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker.
This interface allows any external App to receive system-level metrics such as CPU load, RAM usage, disk usage, temperature, core frequency, system throttle status and uptime.
No credentials are required to subscribe to this topic.
The System Health Actor does not receive commands. It is fully autonomous and publishes its metrics every 1 second.
24.3.2 Runtime Data
Topic: systemHealth/runtime/out
Publish rate: 1 Hz (one message per second, clock-jump safe)
a) Metrics Provided
| Key | Description | Unit |
|---|---|---|
| cpu_percent | Current CPU load | % |
| cpu_tempC | CPU temperature read from Linux thermal zones | ºC |
| cpu0_freq | CPU Core O current frequency | Hz |
| cpul_freq | CPU Core 1 current frequency | Hz |
| cpu2_freq | CPU Core 2 current frequency | Hz |
| cpu3_freq | CPU Core 3 current frequency | Hz |
| cpu0_throttle | System throttle status register | Hex |
| ram_percent | RAM usage | % |
| disk_percent | Disk usage for filesystem root / | % |
| uptime_sec | Time since last reboot | seconds |
Example Payload (systemHealth/runtime/out)
{
"id": <TIMESTAMP>,
"origin": "system-health",
"task": {
"taskResult": {
"cpu_percent": 7.1,
"cpu_tempC": 47.3,
"cpu0_freq": 1500000000,
"cpu1_freq": 1500000000,
"cpu2_freq": 1500000000,
"cpu3_freq": 1500000000,
"cpu0_throttle": "0x0",
"ram_percent": 32.9,
"disk_percent": 41.2,
"uptime_sec": 5321
}
}
}
24.3.3 Peripherals health
In order get the peripherals health we had to implement a SystemHealth actor in each bus manager (busi2cO, busi2c-1, etc. ... ).
a) Example
For busi2c-0:
Reply topic: systemHealth/busi2c-0/runtime/out
Payload:
{
"id": <TIMESTAMP>,
"origin": "system-health-busi2c-0",
"task": {
"taskResult": {
"ADC": {
"status": "ERROR",
"description": "IRQ Retrying",
"last_report": 1770378753006,
"stats": {
"AI1": {
"samples": 563154,
"retries": 760548,
"discards": 253313
},
"AI2": {
"samples": 563154,
"retries": 760475,
"discards": 253314
},
"AI3": {
"samples": 563154,
"retries": 760528,
"discards": 253313
},
"AI4": {
"samples": 563154,
"retries": 760549,
"discards": 253312
}
}
},
"DAC": {
"status": "OK",
"description": "Running....",
"last_report": 1770378752576,
"stats": {
"AO1": {
"samples": 240755,
"retries": 0,
"discards": 0
},
"AO2": {
"samples": 240755,
"retries": 0,
"discards": 0
}
}
},
"RTC": {
"status": "OK",
"description": "",
"last_report": 1770378752094,
"stats": {
"samples": 248710,
"retries": 0,
"discards": 0
}
},
"TEMP": {
"status": "OK",
"description": "",
"last_report": 1770378752579,
"stats": {
"samples": 240754,
"retries": 0,
"discards": 0
}
}
}
}
}
For busi2c-1:
Reply topic: systemHealth/busi2c-1/runtime/out
Payload:
{
"id": <TIMESTAMP>,
"origin": "system-health-busi2c-1",
"task": {
"taskResult": {
"JOYSTICK": {
"status": "OK",
"description": "Running....",
"last_report": 1770382405050,
"stats": {
"read_all": {
"samples": 410154,
"retries": 0,
"discards": 0
},
"read_raw": {
"samples": 0,
"retries": 0,
"discards": 0
},
"buttons": {
"JDOWN": {
"reads": 410154,
"last_state": "pressed"
},
"JRIGHT": {
"reads": 410154,
"last_state": "pressed"
},
"JUP": {
"reads": 410154,
"last_state": "pressed"
},
"JLEFT": {
"reads": 410154,
"last_state": "pressed"
},
"JCENTER": {
"reads": 410154,
"last_state": "pressed"
}
}
}
},
"RELAYS": {
"status": "OK",
"description": "Relay Output MQTT connected",
"last_report": 1770298859099,
"stats": {
"read_all": {
"samples": 0,
"retries": 0,
"discards": 0
},
"set": {
"samples": 0,
"retries": 0,
"discards": 0
},
"set_many": {
"samples": 0,
"retries": 0,
"discards": 0
},
"raw_read_all": {
"samples": 0,
"retries": 0,
"discards": 0
}
},
"outputs": {
"DO1": {
"writes": 0,
"last_state": "unknown"
},
"DO2": {
"writes": 0,
"last_state": "unknown"
}
}
},
"DI": {
"status": "OK",
"description": "Running",
"last_report": 1770382404832,
"stats": {
"read_all": {
"samples": 181758,
"retries": 0,
"discards": 0
},
"read_raw": {
"samples": 0,
"retries": 0,
"discards": 0
},
"inputs": {
"DI1": {
"reads": 181758,
"last_state": "low"
},
"DI2": {
"reads": 181758,
"last_state": "low"
},
"DI3": {
"reads": 181758,
"last_state": "low"
},
"DI4": {
"reads": 181758,
"last_state": "low"
}
}
}
}
}
}
}
24.3.4 Commands
a) List usb devices
The list_usb_devices action returns a parsed list of USB devices detected on the system using the lsusb command.
Req-topic: systemHealth/runtime/in
{
"id": <TIMESTAMP>,
"origin": "Dev",
"task": {
"action": "LIST_USB_DEVICES"
}
}
Reply-topic: systemHealth/runtime/usb/devices/out
{
"id": <TIMESTAMP>,
"origin": "system-health",
"task": {
"action": "list_usb_devices",
"taskResult": {
"usb_devices": {
"success": true,
"command": "lsusb",
"returncode": 0,
"devices": [
{
"bus": "001",
"device": "001",
"vendor_id": "1d6b",
"product_id": "0002",
"description": "Linux Foundation 2.0 root hub",
"parsed": true
},
{
"bus": "001",
"device": "002",
"vendor_id": "0424",
"product_id": "9514",
"description": "Microchip Technology, Inc. (formerly SMSC) SMC9514 Hub",
"parsed": true
},
{
"bus": "001",
"device": "003",
"vendor_id": "0424",
"product_id": "ec00",
"description": "Microchip Technology, Inc. (formerly SMSC) SMSC9512/9514 Fast Ethernet Adapter",
"parsed": true
},
{
"bus": "001",
"device": "004",
"vendor_id": "1e0e",
"product_id": "9001",
"description": "Qualcomm / Option SimTech, Incorporated",
"parsed": true
}
],
"stderr": ""
}
}
}
}
| JSON Path | Type | Example | Description |
|---|---|---|---|
| id | string /number | "get-hw-info-001" | Request identifier echoed back in the response. |
| origin | string | "system-health" | Actor/device that generated the response. |
| task | object | {...} | Container for the action response. |
| task.action | string | "list_usb_devices" | Action executed by the actor. |
| task.taskResult | object | {...} | Main result object for the action. |
| task.taskResult.usb_devices | object | {...} | Contains the USB device scan result. |
| task.taskResult.usb_devices.success | boolean | true | Indicates whether the lsusb
commandexecuted successfully. |
| task.taskResult.usb_devices.command | string | "lsusb" | Command used to collect USB information. |
| task.taskResult.usb_devices.returncode | number /null | 0 | Process return code. 0 means success. null
means the command was not executed ortimed out. |
| task.taskResult.usb_devices.devices | array | [...] | List of USB devices detected by lsusb. |
| task.taskResult.usb_devices.devices[ ].bus | string | "001" | USB bus number where the device wasdetected. |
| task.taskResult.usb_devices.devices[ ].device | string | "004" | USB device number assigned on that bus. |
| task.taskResult.usb_devices.devices[ ].vendor_id | string | "1e0e" | USB vendor ID in hexadecimal format. |
| task.taskResult.usb_devices.devices[ ].product_id | string | "9001" | USB product ID in hexadecimal format. |
| task.taskResult.usb_devices.devices[ ].description | string | "Qualcomm / Option SimTech,Incorporated" | Human-readable device description returnedby lsusb. |
| task.taskResult.usb_devices.devices[ ].parsed | boolean | true | Indicates whether the lsusb line was parsed successfully. |
| task.taskResult.usb_devices.devices[ ].raw | string | Optional | Present only when a device line could not beparsed.
Contains the original raw lsusb line. |
| task.taskResult.usb_devices.stderr | string | " " | Error output from the command. Empty stringmeans no error. |
b) List connectivity specs
The list_connectivity_specs action allows the SystemHealth Actor to return connectivity information for the device, including the status of:
- Wi-Fi
- LTE modem
- eth0
- eth1
- Tunnel interfaces, for possible commissioning use
Req-topic: systemHealth/runtime/in
{
"id": "connectivity-001",
"origin": "APP",
"task": {
"action": "list_connectivity_specs"
}
}
Reply-topic: systemHealth/runtime/connectivity/out
{
"id": "<TIMESTAMP>",
"origin": "system-health",
"task": {
"action": "list_connectivity_specs",
"taskResult": {
"connectivity": {
"sources": {
"sysfs": "/sys/class/net",
"ip_link": {
"available": true,
"command": "ip -j -d link show",
"error": null
},
"network_manager": {
"available": true,
"command": "nmcli -t -f DEVICE,TYPE,STATE,CONNECTION device status",
"error": null
}
},
"interfaces": {
"wifi": {
"available": true,
"interfaces": [
{
"interface": "wlan0",
"available": true,
"status": "down",
"operstate": "down",
"admin_up": true,
"carrier": false,
"mtu": 1500,
"type": 1,
"link_kind": null,
"mac_address": "2c:cf:67:fd:60:40",
"ipv4": [],
"ipv6": [],
"network_manager": {
"device": "wlan0",
"type": "wifi",
"state": "disconnected",
"connection": null
},
"wifi": {
"available": true,
"command": "iw dev wlan0 link",
"connected": false
}
}
]
},
"lte_modem": {
"available": true,
"tool_available": true,
"command": "mmcli -L",
"modems": [
{
"id": "0",
"success": true,
"command": "mmcli -m 0 --output-json",
"manufacturer": "QUALCOMM INCORPORATED",
"model": "SIMCOM_SIM7600G-H",
"revision": "LE20B04SIM7600G22",
"hardware_revision": "10000",
"device": "/sys/devices/platform/scb/fe9c0000.xhci/usb1/1-1/1-1.4",
"drivers": [
"qmi_wwan",
"option"
],
"plugin": "simtech",
"primary_port": "cdc-wdm0",
"ports": [
{
"name": "cdc-wdm0",
"type": "qmi"
},
{
"name": "ttyUSB0",
"type": "ignored"
},
{
"name": "ttyUSB1",
"type": "gps"
},
{
"name": "ttyUSB2",
"type": "at"
},
{
"name": "ttyUSB3",
"type": "at"
},
{
"name": "ttyUSB4",
"type": "audio"
},
{
"name": "wwan0",
"type": "net"
}
],
"state": "failed",
"power_state": "on",
"access_technologies": [],
"signal_quality": {
"recent": "yes",
"value": "0"
},
"current_capabilities": [
"gsm-umts, lte"
],
"supported_capabilities": [
"gsm-umts, lte"
],
"operator_code": "--",
"operator_name": "--",
"registration_state": "--",
"packet_service_state": "--",
"sim_path": null
}
],
"network_interfaces": [
{
"interface": "wwan0",
"available": true,
"status": "down",
"operstate": "down",
"admin_up": false,
"carrier": null,
"mtu": 1500,
"type": 65534,
"link_kind": null,
"mac_address": null,
"ipv4": [],
"ipv6": [],
"network_manager": null
}
]
},
"eth0": {
"interface": "eth0",
"available": true,
"status": "connected",
"operstate": "up",
"admin_up": true,
"carrier": true,
"mtu": 1500,
"type": 1,
"link_kind": null,
"mac_address": "2c:cf:67:fd:60:3f",
"ipv4": [
{
"address": "172.16.20.57",
"prefixlen": 24,
"scope": "global",
"dynamic": true
}
],
"ipv6": [
{
"address": "fe80::7fc1:f65f:5729:d234",
"prefixlen": 64,
"scope": "link",
"dynamic": false
}
],
"network_manager": {
"device": "eth0",
"type": "ethernet",
"state": "connected",
"connection": "wired-ip-dynamic"
}
},
"eth1": {
"interface": "eth1",
"available": true,
"status": "unavailable",
"operstate": "down",
"admin_up": true,
"carrier": false,
"mtu": 1500,
"type": 1,
"link_kind": null,
"mac_address": "2c:cf:67:fd:60:41",
"ipv4": [],
"ipv6": [],
"network_manager": {
"device": "eth1",
"type": "ethernet",
"state": "unavailable",
"connection": null
}
},
"tunnel": {
"available": false,
"interfaces": []
}
}
}
}
}
}
| Field | Type | Description |
|---|---|---|
| id | string/number | Request/response identifier used to correlate therequest with the response. |
| origin | string | Origin of the message. In the response, this is normallythe SystemHealth actor name. |
| task.action | string | Executed action. For this feature, the value is list_connectivity_specs. |
| task.taskResult.connectivity.sources.sysfs | string | Linux sysfs path used to discover network interfaces, usually/sys/class/net. |
| task.taskResult.connectivity.sources.ip_link.available | boolean | Indicates whether the ip command was available andexecuted successfully. |
| task.taskResult.connectivity.sources.ip_link.command | string | Command used to retrieve detailed link information,for example ip -j -d link show. |
| task.taskResult.connectivity.sources.ip_link.error | string/null | Error returned by the ip command, or null if no erroroccurred. |
| task.taskResult.connectivity.sources.network_manager.available | boolean | Indicates whether NetworkManager / nmcli was available and executed successfully. |
| task.taskResult.connectivity.sources.network_manager.command | string | Command used to retrieve NetworkManager device status. |
| task.taskResult.connectivity.sources.network_manager.error | string/null | Error returned by nmcli, or null if no error occurred. |
| task.taskResult.connectivity.interfaces.wifi.available | boolean | Indicates whether at least one Wi-Fi interface was found. |
| task.taskResult.connectivity.interfaces.wifi.interfaces[ ] | array | List of detected Wi-Fi interfaces, usually including wlan0 when Wi-Fi exists. |
| wifi.interfaces[ ].interface | string | Linux interface name, for example wlan0. |
| wifi.interfaces[ ].available | boolean | Indicates whether the Wi-Fi interface exists in the system. |
| wifi.interfaces[ ].status | string | Normalized interface status, for example connected, down, unavailable, no_carrier, or not_available. |
| wifi.interfaces[ ].operstate | string / null | Operational state reported by Linux, for example up, down, or unknown. |
| wifi.interfaces[ ].admin_up | boolean / null | Indicates whether the interface is administratively enabled. |
| wifi.interfaces[ ].carrier | boolean / null | Indicates whether carrier/link is detected. |
| wifi.interfaces[ ].mtu | number / null | Maximum Transmission Unit of the interface. |
| wifi.interfaces[ ].type | number / null | Linux interface type. |
| wifi.interfaces[ ].link_kind | string / null | Special link type, used mainly for virtual/tunnel interfaces. Usually null for normal Wi-Fi. |
| wifi.interfaces[ ].mac_address | string / null | MAC address of the Wi-Fi interface. |
| wifi.interfaces[ ].ipv4[ ] | array | List of IPv4 addresses configured on the Wi-Fi interface. |
| wifi.interfaces[ ].ipv6[ ] | array | List of IPv6 addresses configured on the Wi-Fi interface. |
| wifi.interfaces[ ].network_manager.device | string | NetworkManager device name. |
| wifi.interfaces[ ].network_manager.type | string | NetworkManager interface type, usually wifi. |
| wifi.interfaces[ ].network_manager.state | string | NetworkManager state, for example connected, disconnected, or unavailable. |
| wifi.interfaces[ ].network_manager.connection | string / null | Active NetworkManager profile name, or null if none is active. |
| wifi.interfaces[ ].wifi.available | boolean | Indicates whether Wi-Fi details could be queried using iw. |
| wifi.interfaces[ ].wifi.command | string | Command used to query Wi-Fi link state, for example iw dev wlan0 link. |
| wifi.interfaces[ ].wifi.connected | boolean / null | Indicates whether the Wi-Fi interface is associated with a Wi-Fi network. |
| wifi.interfaces[ ].wifi.ssid | string | SSID of the connected Wi-Fi network, when connected. |
| wifi.interfaces[ ].wifi.bssid | string | BSSID/MAC address of the connected access point, when connected. |
| wifi.interfaces[ ].wifi.frequency_mhz | number | Wi-Fi frequency in MHz, when connected. |
| wifi.interfaces[ ].wifi.signal_dbm | number | Wi-Fi signal strength in dBm, when available. |
| wifi.interfaces[ ].wifi.tx_bitrate | string | Wi-Fi transmit bitrate, when available. |
| wifi.interfaces[ ].wifi.rx_bitrate | string | Wi-Fi receive bitrate, when available. |
| task.taskResult.connectivity.interfaces.lte_modem.available | boolean | Indicates whether at least one LTE modem was detected. |
| task.taskResult.connectivity.interfaces.lte_modem.tool_available | boolean | Indicates whether mmcli / ModemManager is available. |
| task.taskResult.connectivity.interfaces.lte_modem.command | string | Command used to list LTE modems, usually mmcli -L. |
| task.taskResult.connectivity.interfaces.lte_modem.modems[ ] | array | List of LTE modems detected by ModemManager. |
| lte_modem.modems[ ].id | string | Modem ID in ModemManager, for example 0. |
| lte_modem.modems[ ].success | boolean | Indicates whether detailed modem information wasread successfully. |
| lte_modem.modems[ ].command | string | Command used to read modem details, for example mmcli -m 0 --output-json. |
| lte_modem.modems[ ].manufacturer | string / null | Modem manufacturer. |
| lte_modem.modems[ ].model | string / null | Modem model. |
| lte_modem.modems[ ].revision | string / null | Modem firmware/software revision. |
| lte_modem.modems[ ].hardware_revision | string / null | Modem hardware revision. |
| lte_modem.modems[ ].device | string / null | Sysfs/USB path of the modem device. |
| lte_modem.modems[ ].drivers[ ] | array | Linux drivers associated with the modem, for example qmi_wwan or option. |
| lte_modem.modems[ ].plugin | string / null | ModemManager plugin used to manage the modem. |
| lte_modem.modems[ ].primary_port | string / null | Primary modem control port, for example cdc-wdm0. |
| lte_modem.modems[ ].ports[ ] | array | List of ports associated with the modem. |
| lte_modem.modems[ ].ports[ ].name | string | Port/interface name, for example cdc-wdm0, ttyUSB2, or wwan0. |
| lte_modem.modems[ ].ports[ ].type | string / null | Port type, for example qmi, at, gps, audio, net, or ignored. |
| lte_modem.modems[ ].state | string / null | General modem state according to ModemManager,for example registered, connected, or failed. |
| lte_modem.modems[ ].power_state | string / null | Modem power state, for example on, off, or low. |
| lte_modem.modems[ ].access_technologies[ ] | array | Current access technologies in use, for example LTE,UMTS, or GSM. |
| lte_modem.modems[ ].signal_quality.recent | string / null | Indicates whether the signal quality value is recent. |
| lte_modem.modems[ ].signal_quality.value | string / number / null | Signal quality value reported by the modem. |
| lte_modem.modems[ ].current_capabilities[ ] | array | Current modem capabilities. |
| lte_modem.modems[ ].supported_capabilities[ ] | array | Capabilities supported by the modem. |
| lte_modem.modems[ ].operator_code | string / null | MCC/MNC operator code. |
| lte_modem.modems[ ].operator_name | string / null | Operator name. |
| lte_modem.modems[ ].registration_state | string / null | Mobile network registration state. |
| lte_modem.modems[ ].packet_service_state | string / null | Mobile packet data service state. |
| lte_modem.modems[ ].sim_path | string / null | SIM path in ModemManager, when available. |
| task.taskResult.connectivity.interfaces.lte_modem.network_interfaces[] | array | List of Linux network interfaces associated with the LTE modem, usually wwan0. |
| lte_modem.network_interfaces[ ].interface | string | LTE network interface name, for example wwan0. |
| lte_modem.network_interfaces[ ].available | boolean | Indicates whether the LTE network interface exists. |
| lte_modem.network_interfaces[ ].status | string | Normalized LTE network interface status. |
| lte_modem.network_interfaces[ ].operstate | string / null | Operational state reported by Linux. |
| lte_modem.network_interfaces[ ].admin_up | boolean / null | Indicates whether the LTE network interface is administratively enabled. |
| lte_modem.network_interfaces[ ].carrier | boolean / null | Indicates whether carrier/link information is availableand active. |
| lte_modem.network_interfaces[ ].mtu | number / null | Maximum Transmission Unit of the LTE network interface. |
| lte_modem.network_interfaces[ ].type | number / null | Linux interface type. |
| lte_modem.network_interfaces[ ].link_kind | string / null | Link kind, when available. |
| lte_modem.network_interfaces[ ].mac_address | string / null | MAC address, when available. |
| lte_modem.network_interfaces[ ].ipv4[ ] | array | IPv4 addresses configured on the LTE network interface. |
| lte_modem.network_interfaces[ ].ipv6[ ] | array | IPv6 addresses configured on the LTE network interface. |
| lte_modem.network_interfaces[ ].network_manager | object / null | NetworkManager information for the LTE interface, when available. |
| task.taskResult.connectivity.interfaces.eth0.interface | string | Ethernet interface name, eth0. |
| task.taskResult.connectivity.interfaces.eth0.available | boolean | Indicates whether eth0 exists. |
| task.taskResult.connectivity.interfaces.eth0.status | string | Normalized eth0 status. |
| task.taskResult.connectivity.interfaces.eth0.operstate | string / null | Operational state of eth0. |
| task.taskResult.connectivity.interfaces.eth0.admin_up | boolean / null | Indicates whether eth0 is administratively enabled. |
| task.taskResult.connectivity.interfaces.eth0.carrier | boolean / null | Indicates whether eth0 has physical link. |
| task.taskResult.connectivity.interfaces.eth0.mtu | number / null | MTU of eth0. |
| task.taskResult.connectivity.interfaces.eth0.type | number / null | Linux interface type of eth0. |
| task.taskResult.connectivity.interfaces.eth0.link_kind | string / null | Link kind of eth0, usually null. |
| task.taskResult.connectivity.interfaces.eth0.mac_address | string / null | MAC address of eth0. |
| task.taskResult.connectivity.interfaces.eth0.ipv4[ ] | array | IPv4 addresses configured on eth0. |
| task.taskResult.connectivity.interfaces.eth0.ipv6[ ] | array | IPv6 addresses configured on eth0. |
| task.taskResult.connectivity.interfaces.eth0.network_manager | object / null | NetworkManager information for eth0. |
| task.taskResult.connectivity.interfaces.eth1.interface | string | Ethernet interface name, eth1. |
| task.taskResult.connectivity.interfaces.eth1.available | boolean | Indicates whether eth1 exists. |
| task.taskResult.connectivity.interfaces.eth1.status | string | Normalized eth1 status. |
| task.taskResult.connectivity.interfaces.eth1.operstate | string / null | Operational state of eth1. |
| task.taskResult.connectivity.interfaces.eth1.admin_up | boolean / null | Indicates whether eth1 is administratively enabled. |
| task.taskResult.connectivity.interfaces.eth1.carrier | boolean / null | Indicates whether eth1 has physical link. |
| task.taskResult.connectivity.interfaces.eth1.mtu | number / null | MTU of eth1. |
| task.taskResult.connectivity.interfaces.eth1.type | number / null | Linux interface type of eth1. |
| task.taskResult.connectivity.interfaces.eth1.link_kind | string / null | Link kind of eth1, usually null. |
| task.taskResult.connectivity.interfaces.eth1.mac_address | string / null | MAC address of eth1. |
| task.taskResult.connectivity.interfaces.eth1.ipv4[ ] | array | IPv4 addresses configured on eth1. |
| task.taskResult.connectivity.interfaces.eth1.ipv6[ ] | array | IPv6 addresses configured on eth1. |
| task.taskResult.connectivity.interfaces.eth1.network_manager | object / null | NetworkManager information for eth1. |
| task.taskResult.connectivity.interfaces.tunnel.available | boolean | Indicates whether at least one tunnel interface was detected. |
| task.taskResult.connectivity.interfaces.tunnel.interfaces[ ] | array | List of detected tunnel interfaces, for example tun0, tap0, wg0, or tailscale0. |
| tunnel.interfaces[ ].interface | string | Tunnel interface name. |
| tunnel.interfaces[ ].available | boolean | Indicates whether the tunnel interface exists. |
| tunnel.interfaces[ ].status | string | Normalized tunnel interface status. |
| tunnel.interfaces[ ].operstate | string / null | Operational state reported by Linux. |
| tunnel.interfaces[ ].admin_up | boolean / null | Indicates whether the tunnel interface isadministratively enabled. |
| tunnel.interfaces[ ].carrier | boolean / null | Carrier/link information, when available. |
| tunnel.interfaces[ ].mtu | number / null | Tunnel interface MTU. |
| tunnel.interfaces[ ].type | number / null | Linux interface type. |
| tunnel.interfaces[ ].link_kind | string / null | Tunnel link kind, for example tun, tap, or wireguard. |
| tunnel.interfaces[ ].mac_address | string / null | MAC address, when available. |
| tunnel.interfaces[ ].ipv4[ ] | array | IPv4 addresses configured on the tunnel interface. |
| tunnel.interfaces[ ].ipv6[ ] | array | IPv6 addresses configured on the tunnel interface. |
| tunnel.interfaces[ ].network_manager | object / null | NetworkManager information for the tunnel interface, when available. |
| ipv4[ ].address | string | IPv4 address assigned to the interface. |
| ipv4[ ].prefixlen | number | IPv4 network prefix length. Example: 24. |
| ipv4[ ].scope | string | IPv4 scope, for example global. |
| ipv4[ ].dynamic | boolean | Indicates whether the IPv4 address was dynamically assigned. |
| ipv6[ ].address | string | IPv6 address assigned to the interface. |
| ipv6[ ].prefixlen | number | IPv6 network prefix length. |
| ipv6[ ].scope | string | IPv6 scope, for example link or global. |
| ipv6[].dynamic | boolean | Indicates whether the IPv6 address was dynamically assigned. |
c) Get hardware info
Req-topic: systemHealth/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "Dev",
"task": {
"action": "GET_HW_INFO"
}
}
Reply-topic: systemHealth/runtime/hw/info/out
{
"id": "<TIMESTAMP>",
"origin": "system-health",
"task": {
"action": "get_hw_info",
"taskResult": {
"cpu": {......},
"ram": {......},
"emmc": {......},
"block_devices": {......},
"filesystems": {......},
"mmc_sysfs": {......},
"emmc_extcsd": {......}
}
}
}
| Section | Description |
| cpu | CPU and board model information. |
| ram | RAM total, used, and free memory. |
| emmc | Filtered eMMC device and partition information. |
| block_devices | Complete block device list from lsblk, including eMMC, boot partitions, loop devices, zram, NVMe, USB storage, etc. |
| filesystems | Mounted filesystem usage from df -h. |
| mmc_sysfs | Low-level MMC/eMMC identity fields read from /sys/block/mmcblk*/device. |
| emmc_extcsd | Parsed eMMC EXT_CSD information from mmc extcsd read, including health, revision, RPMB, boot, and partitioning data. |
- CPU
The cpu object describes the detected board and CPU.
{
"board_model": "Raspberry Pi Compute Module 4 Rev 1.1",
"cpu": {
"architecture": "aarch64",
"op_modes": "32-bit, 64-bit",
"byte_order": "Little Endian",
"vendor": "ARM",
"model_name": "Cortex-A72",
"model": "3",
"stepping": "r0p3",
"cpu_count": 4,
"online_cpus": "0-3",
"threads_per_core": 1,
"cores_per_cluster": 4,
"clusters": 1,
"frequency": {
"scaling_percent": 60.0,
"min_mhz": 600.0,
"max_mhz": 1500.0,
"bogomips": 108.0
}
}
}
| Field | Type | Description |
|---|---|---|
| board_model | string / null | Hardware board model read from device-tree. |
| cpu.architecture | string | CPU architecture, for example aarch64. |
| cpu.op_modes | string | Supported CPU operation modes. |
| cpu.byte_order | string | CPU byte order. |
| cpu.vendor | string | CPU vendor. |
| cpu.model_name | string | CPU model name. |
| cpu.model | string / number | CPU model identifier. |
| cpu.stepping | string | CPU stepping/revision. |
| cpu.cpu_count | number | Number of detected CPU cores. |
| cpu.online_cpus | string | Online CPU list. |
| cpu.threads_per_core | number | Number of threads per core. |
| cpu.cores_per_cluster | number | Number of cores per cluster. |
| cpu.clusters | number | Number of CPU clusters. |
| cpu.frequency.scaling_percent | number / null | Current CPU frequency scaling percentage. |
| cpu.frequency.min_mhz | number / null | Minimum CPU frequency in MHz. |
| cpu.frequency.max_mhz | number / null | Maximum CPU frequency in MHz. |
| cpu.frequency.bogomips | number / null | BogoMIPS value reported by the system. |
- RAM
The ram object reports system memory usage.
| Field | Type | Description |
|---|---|---|
| total | string | Total system RAM. |
| used | string | Currently used RAM. |
| free | string | Currently free RAM. |
- EMMC
The emmc object is a filtered eMMC view. It focuses on the main eMMC disk and its partitions.
{
"devices": [
{
"name": "mmcblk0",
"model": null,
"serial": "0x121b491e",
"size": "29.1G",
"type": "disk",
"transport": "mmc",
"filesystem": null,
"mountpoints": [],
"partitions": [
{
"name": "mmcblk0p1",
"size": "512M",
"type": "part",
"filesystem": "vfat",
"mountpoints": [
"/boot/firmware"
]
},
{
"name": "mmcblk0p2",
"size": "28.6G",
"type": "part",
"filesystem": "ext4",
"mountpoints": [
"/"
]
}
]
}
]
}
Device fields
| Field | Type | Description |
|---|---|---|
| devices[ ] | array | List of detected main eMMC devices. |
| devices[ ].serial | string / null | eMMC block device name, for example mmcblk0. |
| devices[ ].size | string | Device model, when available. |
| devices[ ].type | string | Device serial number. |
| devices[ ].transport | string / null | Device size. |
| devices[ ].filesystem | string / null | Device type, usually disk. |
| devices[ ].mountpoints | array | Transport type, usually mmc. |
| devices[ ].partitions | array | Filesystem directly on the disk. Usually null when partitions exist. |
| devices[ ].name | string | Mountpoints directly associated with the disk. |
| devices[ ].model | string / null | Partitions belonging to this eMMC disk. |
Partition fields
| Field | Type | Description |
|---|---|---|
| name | string | Partition name, for example mmcblk0p1. |
| size | string | Partition size. |
| type | string | Partition type, usually part. |
| filesystem | string / null | Filesystem type, for example vfat or ext4. |
| mountpoints | array | Mountpoints for the partition. |
d) block_devices
The block_devices object is the complete storage/device tree returned by lsblk.
{
"devices": [
{
"name": "mmcblk0",
"model": null,
"serial": "0x121b491e",
"size": "29.1G",
"type": "disk",
"transport": "mmc",
"filesystem": null,
"mountpoints": [],
"children": [
{
"name": "mmcblk0p1",
"model": null,
"serial": null,
"size": "512M",
"type": "part",
"transport": "mmc",
"filesystem": "vfat",
"mountpoints": [
"/boot/firmware"
],
"children": []
}
]
}
],
"stderr": ""
}
| Field | Type | Description |
|---|---|---|
| devices | array | List of block devices. |
| stderr | string | Command error output, if any. |
| devices[index].name | string | Device name. |
| devices[index].model | string / null | Device model. |
| devices[index].serial | string / null | Device serial number. |
| devices[index].size | string | Device size. |
| devices[index].type | string | Device type, for example disk , part , or loop. |
| devices[index].transport | string / null | Transport type, for example mmc , nvme , or usb. |
| devices[index].filesystem | string / null | Filesystem type, for example ext4 , vfat , or swap. |
| devices[index].mountpoints | array | List of mountpoints. Empty if not mounted. |
| devices[index].children | array | Child block devices, usually partitions. |
e) file_systems
The file_systems object reports mounted filesystem usage, equivalent to df -h.
{
"filesystems": [
{
"source": "/dev/mmcblk0p2",
"filesystem": "ext4",
"size": "29G",
"used": "5.8G",
"available": "23G",
"use_percent": "21%",
"mountpoint": "/",
"parsed": true
},
{
"source": "/dev/nvme0n1p1",
"filesystem": "ext4",
"size": "234G",
"used": "2.1M",
"available": "222G",
"use_percent": "1%",
"mountpoint": "/mnt/nvme",
"parsed": true
}
],
"stderr": ""
}
| Field | Type | Description |
|---|---|---|
| filesystems | array | List of mounted filesystems. |
| stderr | string | Command error output, if any. |
| filesystems[index].source | string | Filesystem source, for example /dev/mmcblk0p2 , tmpfs , or udev. |
| filesystems[index].filesystem | string | Filesystem type, for example ext4 , vfat , tmpfs , or devtmpfs. |
| filesystems[index].size | string | Total filesystem size. |
| filesystems[index].used | string | Used space. |
| filesystems[index].available | string | Available space. |
| filesystems[index].use_percent | string | Used percentage. |
| filesystems[index].mountpoint | string | Mount location. |
| filesystems[index].parsed | boolean | true if the parser successfully parsed this filesystem entry. |
f) mmc_sysfs
The mmc_sysfs object exposes low-level MMC/eMMC identity fields read from:
/sys/block/mmcblk*/device/
This is useful for production traceability, device identification and diagnostics.
{
"source": "/sys/block",
"fields": [
"name",
"cid",
"csd",
"date",
"manfid",
"oemid",
"serial"
],
"devices": [
{
"device": "mmcblk0",
"base_path": "/sys/block/mmcblk0/device",
"available": true,
"fields": {
"name": "BJTD4R",
"cid": "150100424a5444345203121b491e7b00",
"csd": "d02701320f5903fff6dbffef8e404000",
"date": "07/2024",
"manfid": "0x000015",
"oemid": "0x0100",
"serial": "0x121b491e"
}
}
]
}
| Field | Type | Description |
|---|---|---|
| source | string | Base sysfs source path. |
| fields | array | List of sysfs fields collected. |
| devices | array | List of detected MMC/eMMC devices. |
| devices[index].device | string | MMC block device name, for example mmcblk0. |
| devices[index].base_path | string | Sysfs path used for this device. |
| devices[index].available | boolean | Indicates whether the sysfs path exists. |
| devices[index].fields.name | string / null | eMMC product name. |
| devices[index].fields.cid | string / null | Card Identification register. |
| devices[index].fields.csd | string / null | Card Specific Data register. |
| devices[index].fields.date | string / null | Manufacturing date. |
| devices[index].fields.manfid | string / null | Manufacturer ID. |
| devices[index].fields.oemid | string / null | OEM/application ID. |
| devices[index].fields.serial | string / null | eMMC serial number. |
e) emmc_extcsd
The emmc_extcsd object contains parsed information from:
mmc extcsd read /dev/mmcblk0
| Category | Description |
|---|---|
| revision | EXT_CSD and MMC version. |
| health | eMMC lifetime and pre-EOL state. |
| boot | Boot partition/protection configuration. |
| rpmb | Replay Protected Memory Block information. |
| sector | Sector count and capacity information, when available. |
| partitioning | Partitioning and enhanced-area information. |
emmc_extcsd.devices[ ].revision
{
"ext_csd_revision": "1.8",
"mmc_version": "MMC 5.1"
}
| Field | Type | Description |
|---|---|---|
| ext_csd_revision | string | EXT_CSD revision. |
| mmc_version | string | MMC/eMMC standard version. |
emmc_extcsd.devices[ ].health
{
"life_time_estimation_a": {
"field": {
"register": "DEVICE_LIFE_TIME_EST_TYP_A",
"index": null,
"description": "eMMC Life Time Estimation A",
"value": "0x01",
"value_int": 1,
"value_hex": "0x1"
},
"decoded": {
"state": "normal",
"used_percent_min": 0,
"used_percent_max": 10
}
},
"life_time_estimation_b": {
"field": {
"register": "DEVICE_LIFE_TIME_EST_TYP_B",
"index": null,
"description": "eMMC Life Time Estimation B",
"value": "0x01",
"value_int": 1,
"value_hex": "0x1"
},
"decoded": {
"state": "normal",
"used_percent_min": 0,
"used_percent_max": 10
}
},
"pre_eol": {
"field": {
"register": "PRE_EOL_INFO",
"index": null,
"description": "eMMC Pre EOL information",
"value": "0x01",
"value_int": 1,
"value_hex": "0x1"
},
"decoded": {
"state": "normal"
}
}
}
| Field | Description |
|---|---|
| life_time_estimation_a | Wear estimation for eMMC memory type A. |
| life_time_estimation_b | Wear estimation for eMMC memory type B. |
| pre_eol | Pre-end-of-life state. |
Lifetime Decoding
| Raw Value | Decoded State | Meaning |
|---|---|---|
| 0x00 | not_defined | Not defined by device. |
| 0x01 | normal | 0% to 10% estimated lifetime used. |
| 0x02 | normal | 10% to 20% estimated lifetime used. |
| 0x03 | normal | 20% to 30% estimated lifetime used. |
| 0x04 | normal | 30% to 40% estimated lifetime used. |
| 0x05 | normal | 40% to 50% estimated lifetime used. |
| 0x06 | normal | 50% to 60% estimated lifetime used |
| 0x07 | normal | 60% to 70% estimated lifetime used. |
| 0x08 | normal | 70% to 80% estimated lifetime used. |
| 0x09 | normal | 80% to 90% estimated lifetime used. |
| 0x0A | normal | 90% to 100% estimated lifetime used. |
| 0x0B | exceeded | Estimated maximum lifetime exceeded. |
Pre-EOL Decoding
| Raw Value | Decoded State | Meaning |
|---|---|---|
| 0x00 | not_defined | Not defined. |
| 0x01 | normal | Normal condition. |
| 0x02 | warning | Warning state. Monitor or plan replacement. |
| 0x03 | urgent | Urgent state. Replacement recommended. |
emmc_extcsd.devices[ ].boot
{
"partition_config": {
"field": null,
"decoded": null
},
"boot_config_protection": null,
"boot_bus_conditions": null,
"boot_write_protection": {
"register": "BOOT_WP",
"index": null,
"description": "Boot Area Write protection",
"value": "0x00",
"value_int": 0,
"value_hex": "0x0"
},
"boot_size": {
"field": null,
"decoded": null
}
}
| Field | Type | Description |
|---|---|---|
| partition_config | object / null | Boot partition configuration, if available. |
| boot_config_protection | object / null | Boot configuration protection status. |
| boot_bus_conditions | object / null | Boot bus width/mode conditions. |
| boot_write_protection | object / null | Boot area write protection status. |
| boot_size | object / null | Boot partition size, if available. |
emmc_extcsd.devices[ ].rpmb
RPMB means Replay Protected Memory Block. It is a protected eMMC area often used for secure storage.
{
"size": {
"field": {
"register": "RPMB_SIZE_MULT",
"index": null,
"description": "RPMB Size",
"value": "0x20",
"value_int": 32,
"value_hex": "0x20"
},
"decoded": {
"bytes": 4194304,
"kb": 4194.3,
"mb": 4.19,
"gb": 0.0,
"kib": 4096.0,
"mib": 4.0,
"gib": 0.0
}
}
}
| Field | Type | Description |
|---|---|---|
| size.field | object / null | Raw RPMB size register information. |
| size.decoded.bytes | number | RPMB size in bytes. |
| size.decoded.kb | number | RPMB size in decimal KB. |
| size.decoded.mb | number | RPMB size in decimal MB. |
| size.decoded.gb | number | RPMB size in decimal GB. |
| size.decoded.kib | number | RPMB size in KiB. |
| size.decoded.mib | number | RPMB size in MiB. |
| size.decoded.gib | number | RPMB size in GiB. |
emmc_extcsd.devices[ ].sector
{
"sector_count": null,
"sector_size_bytes": 512,
"user_capacity": null
}
| Field | Type | Description |
|---|---|---|
| sector_count | object / null | Parsed sector count register, if available. |
| sector_size_bytes | number | Sector size used for capacity calculation. |
| user_capacity | object / null | Calculated user capacity, if sector count is available. |
emmc_extcsd.devices[ ].partitioning
{
"partitioning_support": {
"register": "PARTITIONING_SUPPORT",
"index": null,
"description": "Partitioning Support",
"value": "0x07",
"value_int": 7,
"value_hex": "0x7"
},
"partition_setting_completed": {
"register": "PARTITION_SETTING_COMPLETED",
"index": null,
"description": "Partitioning Setting",
"value": "0x00",
"value_int": 0,
"value_hex": "0x0"
},
"partition_attribute": {
"register": "PARTITIONS_ATTRIBUTE",
"index": null,
"description": "Partitions attribute",
"value": "0x00",
"value_int": 0,
"value_hex": "0x0"
},
"max_enhanced_area_size": {
"register": "MAX_ENH_SIZE_MULT",
"index": null,
"description": "Max Enhanced Area Size",
"value": "0x000747",
"value_int": 1863,
"value_hex": "0x747"
},
"enhanced_user_area_start": {
"register": "ENH_START_ADDR",
"index": null,
"description": "Enhanced User Data Start Address",
"value": "0x00000000",
"value_int": 0,
"value_hex": "0x0"
},
"enhanced_user_area_size": {
"register": "ENH_SIZE_MULT",
"index": null,
"description": "Enhanced User Data Area Size",
"value": "0x000000",
"value_int": 0,
"value_hex": "0x0"
}
}
| Field | Type | Description |
|---|---|---|
| partitioning_support | object / null | Supported partitioning features. |
| partition_setting_completed | object / null | Indicates whether partition settings were finalized. |
| user_capacity | object / null | Partition attribute register. |
| max_enhanced_area_size | object / null | Maximum enhanced area size multiplier. |
| enhanced_user_area_start | object / null | Enhanced user data area start address. |
| enhanced_user_area_size | object / null | Enhanced user data area size. |
24.4 TempSensor Actor
24.4.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this Area requires no credencials.
a) Set temperature sensor configurations
Req-Topic: tempSensor/config/in
ALERT:
- activate: true(active)/false
- templow: alert temperature lower limit
- tempHigh: alert temperature upper limit
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"ALERT": {
"activate": true,
"tempLow": 0,
"tempHigh": 80
}
}
}
}
Reply-Topic: tempSensor/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"success": true,
"ALERT": {
"activate": true,
"tempLow": 0,
"tempHigh": 80
}
}
}
}
b) Read temperature sensor configurations
Req-Topic: tempSensor/config/in
ALERT:
- activate: true(active)/false
LIMITS:
- templow: alert temperature lower limit
- tempHigh: alert temperature upper limit
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "READ"
}
}
Reply-Topic: tempSensor/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"success": true,
"ALERT": {
"activate": true,
"tempLow": 0,
"tempHigh": 80
}
}
}
}
c) Read temperature and alert status
- unit: Temperature unit of measure
- alert: true (triggered) or false
Req-Topic: tempSensor/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "READ"
}
}
Reply-Topic: tempSensor/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"success": true,
"data": {
"temperature": <_FLOAT_>,
"unit": "C",
"alert": true
}
}
}
}
24.5 TFT Actor
24.5.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to control and interact with the TFT display, or frontal panel LCD screen. Connecting to the broker for this Area requires no credentials.
24.5.2 TFT Display Actor
The TFT Actor is responsible for:
- Rendering static and informative screens on the TFT display
- Reacting to joystick input (LEFT/ RIGHT/ CENTER/ UP/ DOWN)
- Managing screen navigation and user confirmation flows
- Providing feedback to the application via MQTT
a) Screen Carousel Concept
The TFT actor maintains an ordered list of screens (carousel).
- Screens are navigated using the joystick:
- LEFT --> Previous screen
- RIGHT --> Next screen
- The carousel wraps around:
- LEFT on first screen --> last screen
- RIGHT on last screen --> first screen
b) Screen Types
The TFT actor supports the following screen types:
Image Screen
- Displays a static JPEG image
- Default screen shown at boot
- No user interaction required
Network Information Screen
- Display a interface with information about the networks of the device
- Updated on load
- No user interaction required
c) Joystick Navigation Logic
Carousel Navigation:
| Joystick Input | Action |
| LEFT | Previous screen |
| RIGHT | Next screen |
| DOWN | Refresh current screen |
d) Boot Behavior
At system boot:
- TFT actor initializes the display
- Last available carousel is loaded
- First screen is rendered
- Joystick subscriptions are activated
- Actor waits for runtime commands
e) Design Notes & Constraints
- TFT actor does not expose joystick state
- Joystick actor remains independent
- TFT actor internally consumes joystick events
- Carousel state is local to the TFT actor
- Screen rendering is synchronous; input handling is asynchronous
- Confirmation screens always require explicit CENTER press
24.5.3 User interaction through MQTT
Enabling interaction with the carousel using the topic tft/runtime/in . Actions available will be public to the user.
Runtime commands
Go to screen
Req-Topic: tft/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "SET_CAROUSEL",
"params": {
"index": 2
}
}
}
Reply-Topic: tft/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "tft",
"task": {
"taskResult": {
"success": true,
"index": 2
}
}
}
Set TFT Screen Carousel Req-Topic: tft/runtime/in
{
"id": "TIMESTAMP",
"origin": "APP",
"task": {
"action": "SET_CAROUSEL",
"params": {
"startIndex": 0,
"screens": [
{
"type": "image",
"image": "default.jpg"
},
{
"type": "image",
"image": "status.jpg"
},
{
"type": "confirm",
"question": "Do you want to continue?"
}
]
}
}
}
Parameters:
| Field | Description |
| screens | Ordered list of screens |
| Start lndex | Initial active screen (optional, default = 0) |
Reply
Reply-Topic: tft/runtime/out
{
"id": "TIMESTAMP",
"origin": "tft",
"task": {
"taskResult": {
"success": true,
"activeIndex": 0,
"totalScreens": 3
}
}
}
24.6 AnalogInputs Actor
24.6.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this Area requires no credencials.
a) Configurations
Topic: analogInputs/config/in - Set ADC channels configurations
mode
- continuous
- single
type
- voltage
- current
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"AI1": {
"mode": "single",
"type": "voltage"
},
"AI2": {
"mode": "single",
"type": "voltage"
},
"AI3": {
"mode": "single",
"type": "current"
},
"AI4": {
"mode": "single",
"type": "current"
}
}
}
}
Reply-Topic: analogInputs/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"AI1": {
"success": true
},
"AI2": {
"success": true
},
"AI3": {
"success": true
},
"AI4": {
"success": true
}
}
}
}
b) Runtime Data
Topic: analogInputs/runtime/in.
action:
- READ
- PAUSE (only applicable in continuous mode)
- RESUME (only applicable in continuous mode)
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"AI1": {
"action": "READ"
},
"AI2": {
"action": "READ"
},
"AI3": {
"action": "READ"
},
"AI4": {
"action": "READ"
}
}
}
}
Reply-Topic: analogInputs/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"AI1": {
"success": true,
"value": <_FLOAT_>
},
"AI2": {
"success": true,
"value": <_FLOAT_>
},
"AI3": {
"success": true,
"value": <_FLOAT_>
},
"AI4": {
"success": true,
"value": <_FLOAT_>
}
}
}
}
24.6.2 Usage Examples
24.7 Analog Outputs Actor
24.7.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this Area requires no credencials.
a) Set analog outputs signal
Req-Topic: analogOutputs/config/in
Output: current within 0-20 mA
mode: on/off
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"mode": "on",
"AO1": {
"current": <_FLOAT_>
},
"AO2": {
"current": <_FLOAT_>
}
}
}
}
Reply-Topic: analogOutputs/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"mode": "on",
"AO1": {
"success": true,
"current": <_FLOAT_>
},
"AO2": {
"success": true,
"current": <_FLOAT_>
}
}
}
}
b) Set analog outputs
Req-Topic: analogOutputs/runtime/in
current: current within 0-20 mA
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"AO1": {
"action": "SET",
"current": <_FLOAT_>
},
"AO2": {
"action": "SET",
"current": <_FLOAT_>
}
}
}
}
Reply-Topic: analoigOutputs/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"AO1": {
"success": true,
"current": <_FLOAT_>
},
"AO2": {
"success": true,
"current": <_FLOAT_>
}
}
}
}
c) Read analog outputs settings
Req-Topic: analogOutputs/runtime/in
current: current within 0-20 mA
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"AO1": {
"action": "READ"
},
"AO2": {
"action": "READ"
}
}
}
}
Reply-Topic: analogOutputs/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"AO1": {
"success": true,
"current": <_FLOAT_>
},
"AO2": {
"success": true,
"current": <_FLOAT_>
}
}
}
}
24.8 Digital Inputs Actor
24.8.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this Area requires no credentials.
a) Set digital input pin/pins speed fast/slow
The fast speed setting supports edge detection speed up to 100 Hz and the slow speed settings supports up to 10 Hz.
Fast Mode generates a message on every I/O state change, which may result in a high message payload during operation. Fast Mode should therefore only be enabled when strictly required.
Req-Topic: digitalInputs/config/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"DI1": {
"speed": "fast"
},
"DI2": {
"speed": "slow"
},
"DI3": {
"speed": "fast"
},
"DI4": {
"speed": "fast"
}
}
}
}
Reply-Topic: digitalInputs/config/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"DI1": {
"success": true,
"speed": "fast"
},
"DI2": {
"success": true,
"speed": "slow"
},
"DI3": {
"success": true,
"speed": "fast"
},
"DI4": {
"success": true,
"speed": "fast"
}
}
}
}
b) Get all digital input pins state
Req-Topic: digitalInputs/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "READ"
}
}
Reply-Topic: digitalInputs/runtime/out state: high/low
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"DI1": {
"success": true,
"state": "high"
},
"DI2": {
"success": true,
"state": "low"
},
"DI3": {
"success": true,
"state": "high"
},
"DI4": {
"success": true,
"state": "low"
}
}
}
}
24.9 Digital Outputs Actor
24.9.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this area requires no credencials.
a) Get all digital output pins state
Req-Topic: digitalOutputs/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "READ"
}
}
Reply-Topic: digitalOutputs/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"DO1": {
"success": true,
"state": "low"
},
"DO2": {
"success": true,
"state": "high"
},
"DO3": {
"success": true,
"state": "high"
},
"DO4": {
"success": true,
"state": "low"
},
"DO5": {
"success": true,
"state": "low"
},
"DO6": {
"success": true,
"state": "low"
},
"DO7": {
"success": true,
"state": "low"
},
"DO8": {
"success": true,
"state": "low"
}
}
}
}
b) Set all digital output pins state
Req-Topic: digitalOutputs/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskParams": {
"DO1": {
"action": "SET",
"state": "low"
},
"DO2": {
"action": "SET",
"state": "high"
},
"DO3": {
"action": "SET",
"state": "high"
},
"DO4": {
"action": "SET",
"state": "low"
},
"DO5": {
"action": "SET",
"state": "low"
},
"DO6": {
"action": "SET",
"state": "low"
},
"DO7": {
"action": "SET",
"state": "low"
},
"DO8": {
"action": "SET",
"state": "low"
}
}
}
}
Reply-Topic: digitalOutputs/runtime/out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"D01": {
"success": true,
"state": "low"
},
"D02": {
"success": true,
"state": "high"
},
"D03": {
"success": true,
"state": "high"
},
"D04": {
"success": true,
"state": "high"
},
"D05": {
"success": true,
"state": "high"
},
"D06": {
"success": true,
"state": "low"
},
"D07": {
"success": true,
"state": "low"
},
"D08": {
"success": true,
"state": "low"
}
}
}
}
24.9.2 Notes
If the busi2c-3 is not powered, we will get this:
Topic: digit a lOutputs/runtime/ out
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"DO1": {
"success": false,
"state": "DO_not_powered"
},
"DO2": {
"success": false,
"state": "DO_not_powered"
},
"DO3": {
"success": false,
"state": "DO_not_powered"
},
"DO4": {
"success": false,
"state": "DO_not_powered"
},
"DO5": {
"success": false,
"state": "DO_not_powered"
},
"DO6": {
"success": false,
"state": "DO_not_powered"
},
"DO7": {
"success": false,
"state": "DO_not_powered"
},
"DO8": {
"success": false,
"state": "DO_not_powered"
}
}
}
}
24.10 Joystick Actor
24.10.1 App Interfacing
User App interface and functionalities exposed to the open part of the MQTT broker. Simplified interface to configure and obtain peripherals data. Connecting to the broker for this Area requires no credencials.
a) Get all joystick pins state
Req-Topic: joystick/runtime/in
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"action": "READ"
}
}
Reply-Topic: joystick//runtime/out state: pressed/released
{
"id": "<TIMESTAMP>",
"origin": "APP",
"task": {
"taskResult": {
"JLEFT": {
"success": true,
"state": "pressed"
},
"JRIGHT": {
"success": true,
"state": "released"
},
"JUP": {
"success": true,
"state": "released"
},
"JDOWN": {
"success": true,
"state": "released"
},
"JCENTER": {
"success": true,
"state": "released"
}
}
}
}
24.11 Buzzer Actor
24.11.1 Overview
The Buzzer Actor is responsible for controlling the onboard buzzer through MQTT commands. It receives runtime commands on an MQTT input topic, validates the requested buzzer operation, drives the buzzerthrough GPIO using libgpiod, and publishes status/final responses on an MQTT output topic.
The actor currently controls GPIO line 25 on /dev/gpiochip0, with ACTIVE_LOW = False. It creates a
GpiodBuzzerDriver instance and routes incoming MQTT actions to runtime handlers.
The supported runtime actions are:
| Action | Description |
| BEEP | Plays a finite beep sequence, an infinite beep sequence, or a continuous tone |
| STOP | Stops the currently active buzzer playback |
24.11.2 MQTT Topics
| Topic | Direction | Description |
| buzzer/runtime/in | Input | Receives buzzer commands |
| buzzer/runtime/out | Output | Publishes status messages and final command responses |
The actor subscribes to buzzer/runtime/in and publishes all status/final replies to buzzer/runtime/out.
24.11.3 Hardware and Datasheet Notes
The buzzer used is the MLT-8530 electro-magnetic SMD buzzer.
According to the datasheet:
| Parameter | Value |
| Rated voltage | 3.6 Vo-p |
| Operating voltage | 2.5 ~ 4.5 Vo-p |
| Rated current | Max. 95 mA |
| Rated test frequency | 2700 Hz |
| Duty cycle | 50% square wave |
| Sound output | Min. 80 dB at 10 cm |
| Coil resistance | 16 ± 3 Ω |
| Resonant frequency | 2700 Hz |
24.11.4 BEEP
The BEEP action supports two modes:
| Mode | Description |
| sequence | Plays one or more beeps with gaps between them |
| continuous | Plays one continuous tone until STOP is received |
If no mode is provided, the default mode is: sequence
All messages should be sent to the topic buzzer/runtime/in
a) Default Datasheet-Aligned Beep
{
"id": <TIMESTAMP>,
"origin": "APP",
"task": {
"action": "BEEP"
}
}
b) N Beeps
Play <BEEPS_QUANTITY> beeps at <FREQUENCY> Hz. Each beep lasts <BEEP_DURATION> seconds, with
<GAP_BETWEEN_BEEPS> seconds of silence between beeps.
{
"id": <TIMESTAMP>,
"origin": "APP",
"task": {
"action": "BEEP",
"params": {
"frequency_hz": <FREQUENCY>,
"duration_s": <BEEP_DURATION>,
"count": <BEEPS_QUANTITY>,
"gap_s": <GAP_BETWEEN_BEEPS>
}
}
}
If you want to play repeated beeps forever until a STOP command arrives then you only need to pass the count: 0
c) Continuous Tone
Play one continuous <FREQUENCY> Hz tone until STOP.
{
"id": <TIMESTAMP>,
"origin": "APP",
"task": {
"action": "BEEP",
"params": {
"mode": "continuous",
"frequency_hz": <FREQUENCY>
}
}
}
If frequency_hz is omitted, the handler uses the configured default frequency.
d) Stop Buzzer
If you want to stop the beep sequence, just send this payload to the buzzer/runtime/in
{
"id": <TIMESTAMP>,
"origin": "APP",
"task": {
"action": "STOP",
}
}
e) Buzzer payload parameters table
| Field | Required | Type | Default | Applies to | Description |
|---|---|---|---|---|---|
| task | Yes | object | - | All requests | Main task object. Contains the requested action and
optional parameters. |
| task.action | Yes | string | - | All requests | Action to execute. Supported values: "BEEP" and
"STOP". |
| task.params | No | object | {} | BEEP | Optional parameters for configuring the buzzer
behavior. Not needed for STOP. |
| task.params.mode | No | string | "sequence" | BEEP | Playback mode. Supported values: "sequence" and
"continuous". |
| task.params.frequency_hz | No | number | 2700.0 | BEEP | Buzzer frequency in Hz. Recommended/default value
is 2700 Hz , matching the buzzer resonant frequency. |
| task.params.duration_s | No | number | 0.2 | BEEP with
mode="sequence" |
Duration of each beep, in seconds. |
| task.params.count | No | integer | 1 | BEEP with
mode="sequence" |
Number of beeps to play. 0 means repeat forever
until STOP. |
| task.params.gap_s | No | number | 0.15 | BEEP with
mode="sequence" |
Silence gap between beeps, in seconds. |
| task.params.mode ="continuous" | No | string | - | BEEP | Plays one continuous tone until STOP . In this mode,
duration_s , count , and gap_s are ignored. |
24.11.5 Buzzer - diagram
24.11.6 Buzzer Command timing charts - Examples
The following charts represent the command-level buzzer state over time.
They do not show the internal 2700 Hz switching frequency.
Instead, they show when the buzzer is logically:
| State | Meaning |
| 1 | Buzzer active / sound ON |
| 0 | Buzzer inactive / silence |
a) Default BEEP command
{
"id": <TIMESTAMP>,
"origin": "APP",
"task": {
"action": "BEEP",
}
}
Default values used:
| Parameter | Value |
| duration_s | 0.2 s |
| count | 1 |
| gap_s | 0.15 s |
Buzzer State
duration_s = 0.2 s
count = 1
b) BEEP Sequence - 5 beeps
{
"id": 1779789836000,
"origin": "APP",
"task": {
"action": "BEEP",
"params": {
"duration_s": 1,
"count": 5,
"gap_s": <GAP_BETWEEN_BEEPS>
}
}
}
Buzzer State
duration_s = 1.0s
gap_s = 0.5s
count = 5
c) Infinite BEEP Sequence
This happens when: "count": 0
{
"id": 1779789836000,
"origin": "APP",
"task": {
"action": "BEEP",
"params": {
"duration_s": 1,
"count": 0,
"gap_s": 0.5
}
}
}
Buzzer State
duration_s = 1.0
gap_s = 0.5
count = 0
d) Continuous BEEP
In continuous mode, the buzzer remains ON until a STOP command is received.
{
"id": 1779789836000,
"origin": "APP",
"task": {
"action": "BEEP",
"params": {
"mode": "continuous",
}
}
}
Buzzer State
mode = continuous
e) STOP
The STOP command immediately forces the buzzer to OFF.
Buzzer State
After STOP, the buzzer is forced to OFF.
25. Included Software Stack
26. Hardware Libraries
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27. Related Products
| PA | Name | Requirements |
| PA000000074 | SENSBLUE MONARCH Gateway |
28. Accessories
| PA | Name | Requirements |
29. Document History
| Version | Description | Date |
| SBADATAv0.1 | First version of SENSBLUE ATLAS Datasheet | 11/03/2026 |
30. SENSBLUE ATLAS in-the-field
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