Arduino-based temperature controller to keep a freezer within a certain temperature range. This circuit is used in the Kegmeister project.
- OneWire temperature prope connected to pin 2
- Solid State Relay connected to pin 3
- PCD8544 display connected as: RST/12, CE/11, DC/10, DIN/8 and CLK/7
- Raspberry Pi (or any other computer) connected via USB (optional)