Seems to me that we need to start with a conversation about "scope" and desired results, specific enough that we can tell when we are moving in the correct direction.
EDIT: Below is a
working list of inputs & outputs for the GPC (general purpose controller), based on desired functionality. Additions are invited.
Quote:
- Relay for compressor
- Relay for crank case heater
- Relay for fan
- Relay for 4way valve
- Relay for ground loop circulation pump
- Relay for hydronic circulation pump
- Input for flow switch so i am sure that water is circulating
- Input for an S0 power meter to measure power usage.
- Input for frost sensor (or water HX output temp sensor)
- Two rs485 bus lines one for outside sensor print, and one to
communicate with my other heating controller.
- 2x16 lcd display
- Some led's and push button to test
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Best,
-AC_Hacker