I'm totally new to Node-RED, so I would like to ask you what can I do if I have some sensors which I want to read and send measured values via MQTT to another platform. I already have all codes written and working on the Arduino UNO board. So I would like to ask you what do you recommend me to do if I need to run the code with arduino library and somehow get the data from that sensor to Node-RED. I would like to avoid installing some already done libraries (or things like that) or things like that for that sensor.
Thank you very much