3 ms·
The first two links you've provided about the battery don't prove or even suggest that the battery is essentially intended as a chemical timer to disable the th
by somewhat_drunk 4y ago
The first two links you've provided about the battery don't prove or even suggest that the battery is essentially intended as a chemical timer to disable the thermostat when it runs out, which is the gist of the claim.
- K0balt 4y agoWe had a over a hundred deployed so I did pretty exhaustive analysis. There is no rtc or anything that needs power. The at328p chip used has nonvolatile storage, the battery does not supply power when the power to the thermostat is removed, and the battery keeps a gpio pin on the mcu high. It’s pretty plain.