Self-described technologist and “dreamer of optimistic futures” Danilo Campos has put together an open source Espressif ESP32-based controller and home automation terminal for heat pump systems: the ThermTerm.

“I love my heat pumps. They’re energy efficient and the fastest way to heat or cool any room,” Campos explains. “But I’ve always hated the remote controls that come with heat pumps. They’re clunky and hard to read, especially in low light. In theory, you can program schedules for your heat pumps, but in practice the remotes are too frustrating to use for that. ThermTerm solves all the problems I’ve had with these physical controls, while integrating the heat pumps into Home Assistant via MQTT.”