Expected completion time of this lab: 20 min.
The analog input pins only support a voltage between 0 and 1.8V. NEVER apply a volyage outside that range, of you will fry the board.
Test the voltage of your input using a voltmeter before applying to the board.
For testing, you can leave the pin floating (the input voltage should be around 1V), or tied to ground.
Create the following Node-RED flow to enable analog input pin A0
A little help
The function node at the top contains the following code:
msg.payload = { "method" : "PUT", "url" : "/analog/A0", "body": { "enable": msg.payload, "rate": 10000, "sampleCount": 1, "dataFormat": 0 }, "token": "myToken", } return msg;You should end up with the following dashboard
Extra points!
Create little control loops between sensors and actuators!