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NoLongerEvil-Thermostat – Nest Generation 1 and 2 Firmware

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Re: NoLongerEvil-Thermostat – Nest Generation 1 and 2 Firmware

#31
If you're interested, I went a different route to design new PCBs for the hardware to have 100% firmware control, see for example https://sett.homes/blogs/updates/the-lcd-display-reverse-eng...

I am hopeful that Cody's exploit lets us write whole new firmware without the extra step of needing the new PCBs, but they are my next best option

Re: NoLongerEvil-Thermostat – Nest Generation 1 and 2 Firmware

#32

This person is a PHP programmer according to their LinkedIn profile. They are just using the existing OMAPLoader tool and does not seem to have embedded device programming experience. I am not hopeful they will be able to write custom firmware for the thermostats. LFP

> I am not hopeful they will be able to write custom firmware for the thermostats. If you read the GitHub Readme (typically a better way to judge a project than stalking someone on LinkedIn) you can see that they didn’t write a custom firmware. They modified the Nest firmware to contact different back end servers. The firmware is the same (they claim) except for modifications to change which server is contacted. They…

Personally, I think this might be an even better approach. The Nest Gen1/2 UI was pretty slick. It would be a shame to have to use a custom firmware.

Re: NoLongerEvil-Thermostat – Nest Generation 1 and 2 Firmware

#36

If your boiler supports OpenTherm then get this thermostat controller https://github.com/Alexwijn/SAT Weather comp + low load comp + PID which means your room temperature works at the precision range supported by your temperature sensor. In my case, within 0.02 Celsius. Saves energy and makes your house more comfortable. Operated via home assistant. See real time data in Grafana https://gasboiler.grafana.net/public-d…

Stuff this project tackles is on my "I'll get to it after I retire" list - super awesome. Looks like this works for forced air HVAC as well?

In theory but the odds of you having an HVAC control board that supports OpenTherm are extremely low.

Re: NoLongerEvil-Thermostat – Nest Generation 1 and 2 Firmware

#37

It is pretty outrageous that a company who purports to care about the environment turned this into a pile of garbage for the average user to save on some cloud hosting or devops. Or even worse, to sell the next generation.

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