I was wondering if it was possible to buy a PID system, and interface it with arduino. Or is a PID system something you can build from scratch on an arduino breadboard? Not sure if you "buy" a PID already programmed, or if you build one from scratch. As I am not an EE major, I would prefer to buy one.
The reason for the PID:
To control the temperature of a soldering iron, using a thermocouple to give feedback on the temperature.
Have the thermocouple as the input to the PID device, and the soldering iron wires(?) as the output. The arduino program will regulate the soldering iron temperature based on the feedback from the thermocouple- which will be placed at the tip of the soldering iron.
^ Is this even possible?