To build the Head Pressure Control Optimized Temperature Control Switch (that is being prototyped as an Arduino Sketch and be fully implemented as a re-flashed W1209 device) an HVAC Test Load Simulator needs to be built. Update:The in-process re-flashed device project has been named the HPC09 Head Pressure Control Optimized Temperature Control Switch. Take a … Continue reading HVAC Test Load Simulator – Update