2 x 40 pin
PIC16F887 8 Bit Chip
Most likely to be used for this project as it has many input/output pins.
Not sure exactly how many will be needed yet but will be putting together a wiring diagram in the coming days as time becomes available.
3 x 28 pin
PIC16F767 8 Bit Chip
The electronics box for controlling the climate system will ideally leave all the factory wiring intact. The current plan to make this happen is to obtain a center control panel from a junkyard to harvest the plugs to allow for a simple plug in solution.
Stay tuned for the progress…. this is not your typical weekend project…