Hi
I have a small personal project in mind where I'd like to use a raspberry pi, ODROID or similar embedded ARM board running Mango, and use the PID controller module to drive a solid-state relay (with a temperature probe proving the PV parameter).
However, I have run into a problem trying to find a way to interface Mango to the 'outside world' in a way that is compact and low cost. I am prepared (in fact, would prefer) to build something from scratch, as this is a learning project. I have intermediate electronics experience.
I thought about using an Arduino running a 1-wire or Modbus library, and communicating with it over serial, via I suppose a USB serial adapter, but wondered if there was another way of interfacing Mango with the hardware at a lower level to achieve control of the SSR and read a temperature probe via Mango.
Does anyone have any thoughts or ideas?