Hi, I am very new to Node-Red but I have red all the documentation I can find and I am still confused. I am trying to use an arduino (the adafruit trellis m4 express) hooked up over a serial connection to my pi running node-red. I would like to read the input of the serial monitor on my pi and detect what button is pushed, however my problem is I don't understand the trigger for node red.
tl;dl: I don't understand how the serial nodes work in node-red and I couln't find any documentation to help
Thanks
The only tricky part is knowing what "device" your serial connection attaches itself to. There are various ways to discover this if you need to - a quick Internet search will lead the way.
Assuming you can find that, all you do is add the serial-in node then double click to get to the edit properties. and add a new serial port:
Configure that to point to the serial port you are using. This is quite a common setting:
I have 2 serial inputs on my live Pi based home automation system:
The RFX node also uses a serial connection.
