What are the exact differences in the versions? I’ve read quite a bit on the Wiki but can’t really grasp which version would be best for me. The size seems to be the only difference I can really see and the price difference. I’m looking to use a Pi Zero W as the pi unit for it.
Has anyone successfully built a HeaterMeter w/ a damper for use on their Joe? I am looking to build one, any pictures or input would be greatly appreciated.