Reverse-Engineering the LCD Display Interface of the Nest 2nd Gen Thermostat(sett.homes)

3 pointsby z3ugmahace 10 meses1 comments

Reverse-Engineering the LCD Display Interface of the Nest 2nd Gen Thermostat

https://sett.homes/blogs/updates/the-lcd-display-reverse-engineering-the-display-interface

1 comments

z3ugmahace 10 meses

Reverse-engineering work in pursuit of keeping Nest 2nd Gen thermostats out of the landfill.

On October 25, 2025, Nest Thermostats of the 1st and 2nd generation will no longer be supported by Google. Nest and Google Home app access will stop working.

Sett is an open-source, enclosure-compatible version of the 2nd gen Nest thermostat. It reuses the enclosure, encoder ring, display, and mounts of the Nest but replaces the "thinking" part with open-source PCBs that interact with Home Assistant and other local-first home automation setups.