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'''Flow Node-RED'''
'''Flow Node-RED'''


These easy-to-implement flows aim to speed up the integration of ATLAS in any scenario by adding an abstraction layer between the user and the stack. This is achieved through the use of subflows, which contain the necessary code for the functionalities and allow changes if needed, providing a node that "hides" the more complex integration.
These easy-to-deploy flows aim to make the integration of the ATLAS into any scenario faster by adding anabstraction layer between the user and the stack. This is achieved through the use of subflows, which containthe code needed for the features and where changes can be made if necessary, exposing a node that "hides"that more complex integration.


=== 1. Import Flows to Example Folder ===
=== 1. Import Flows to Example Folder ===
To import the flows and add them to the Node-RED examples folder, execute the following:
To import the flows and add them to the Node-RED examples folder, execute the following:


1.1 First, copy the ATLAS folder to a folder with permissions, e.g., /pi
1.1 First copy the ATLAS folder to a folder with permissions, i.e. /pi


1.2 Copy the folder to the Node-RED examples folder using the command:<syntaxhighlight lang="bash">
1.2 Copy the folder to the Node-RED examples folder using the command:<syntaxhighlight lang="bash">
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'''Analog Inputs'''
'''Analog Inputs'''


This flow demonstrates the acquisition and control of analogue ports AI1..AI4 via MQTT and Node-RED Dashboard 2.0. The system is divided into two main subflows: Analog Inputs (for reading channels AI1 to AI4) and Analog Outputs (for configuring/reading channels AO1 and AO2). The main logic is encapsulated in subflows, allowing reuse in other tabs or projects.
This flow implements a demonstration of acquisition and control of analog ports AI1..AI4 via MQTT and theNode-RED Dashboard 2.0. The system is divided into two main subflows: '''Analog Inputs''', for readingchannels AI1 to AI4, and '''Analog Outputs''', for configuring/reading channels AO1 and AO2. The main logic isencapsulated in subflows, allowing reuse in other tabs or projects.


=== 2. Main Components ===
=== 2. Main Components ===
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==== 3.1 Function ====
==== 3.1 Function ====
The Analog Inputs subflow allows you to select which AI channels should be read and in which unit/type each channel should operate: voltage or current. The subflow has four outputs, one per channel: AI1, AI2, AI3, and AI4.
The Analog Inputs subflow allows selecting which AI channels should be read and in which unit/type eachchannel should operate: voltage ('''voltage''') or current ('''current'''). The subflow has four outputs, one perchannel: AI1, AI2, AI3 and AI4.


==== 3.2 ENV Variables ====
==== 3.2 ENV Variables ====
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!Description
!Description
|-
|-
|readAI1
|'''readAI1'''
|bool
|bool
|true
|'''true'''
|Enables/disables reading of channel AI1.
|Enables/disables reading of channel AI1.
|-
|-
|AI1_type
|'''AI1_type'''
|string
|string
|voltage
|'''voltage'''
|Type of AI1 reading: voltage or current.
|Type of AI1 reading: '''voltage''' or '''current'''.
|-
|-
|readAI2
|'''readAI2'''
|bool
|bool
|true
|'''true'''
|Enables/disables reading of channel AI2.
|Enables/disables reading of channel AI2.
|-
|-
|AI2_type
|'''AI2_type'''
|string
|string
|voltage
|'''voltage'''
|Type of AI2 reading: voltage or current.
|Type of AI2 reading: '''voltage''' or '''current'''.
|-
|-
|readAI3
|'''readAI3'''
|bool
|bool
|true
|'''true'''
|Enables/disables reading of channel AI3.
|Enables/disables reading of channel AI3.
|-
|-
|AI3_type
|'''AI3_type'''
|string
|string
|voltage
|'''voltage'''
|Type of AI3 reading: voltage or current.
|Type of AI3 reading: '''voltage''' or '''current'''.
|-
|-
|readAI4
|'''readAI4'''
|bool
|bool
|true
|'''true'''
|Enables/disables reading of channel AI4.
|Enables/disables reading of channel AI4.
|-
|-
|AI4_type
|'''AI4_type'''
|string
|string
|voltage
|'''voltage'''
|Type of AI4 reading: voltage or current.
|Type of AI4 reading: '''voltage''' or '''current'''.
|}
|}


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   }
   }
}
}
</syntaxhighlight>If no channel is active, the function emits the warning "No AI channels selected" and does not send a message.
</syntaxhighlight>If no channel is active, the function emits the warning "'''No AI channels selected'''" and does not send a message.


==== 3.4 Configuring the AI mode ====
==== 3.4 Configuring the AI mode ====
The group '''Set acquisition mode''' allows sending the configuration of the analogue channels to <code>analogInputs/config/in</code>. The function '''Set AIX mode''' creates taskParams only for the active channels and sets each channel as:<syntaxhighlight lang="json">
The group '''Set acquisition mode''' allows sending the configuration of the analogue channels to <code>analogInputs/config/in</code>. The function '''Set AIX mode''' creates '''taskParams''' only for the active channels and sets each channel as:<syntaxhighlight lang="json">
{
{
   "mode": "single",
   "mode": "single",
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