Firmware version 1.0 (supports Brandt UD2321)

This firmware is hard-coded to control the Brandt UD2321 freezer as a freezer. It enables the freezer cooling unit until the temperatures reaches -26°C, then stops the cooling unit. The cooling unit is re-enabled when the temperature rises to -19°C.

Hardware V1.0

All the gerber and drill files needed to manufacture the PCB, along with the PCB bill of materials.