## CHPC: Cheap Heat Pump Controller v1.0

# Development

State: active
Thread: https://www.forumhouse.ru/threads/469103/

# PCB Design

There are 2 PCB designs: type "F" and type "G"

Type "F" features:
- only SMD componens,
- internal power source,
- 10 output channels,
- 4 input channels,
- 5 relays: 1*16A + 4*7A,
- buzzer,
- EEV support,
- 16 bit i2c ADC: on board,
- i2c devices: allowed.

Type "G" features:
- no SMD components,
- external, board-placed power source,
- 5 output channels,
- 4 input channels,
- 5 relays: 2*16A + 3*7A,
- buzzer,
- EEV support,
- 16 bit i2c ADC: off board,
- i2c devices: allowed.