A different type of thermostat: a Solar Heating Controller

A project log for W1209 Data Logging Thermostat

The W1209 thermostat is cheap, but it's about time that it learns new tricks!

ThomasThomas 09/26/2018 at 17:570 Comments

Solar heating controllers need at least two temperature sensors. Such a thing can be hacked using a W1209, but I decided to design a new PCB (mostly because I try to avoid relays in things that I expect to work for more than 10 years unattended).

To keep a log of my progress I started a HaD project Solar Heating Controller. Maybe it catches your interest!