There is a constant stream of artificially obsolete devices, its a lot of work to keep up with that. Seems like we need a Reverse Engineers Anonymous co-operative to receive hardware and donations and pay people to do the work.

> Always thought round LCDs (and rounded corners on displays and now GUI windows) were stupid

If you've ever used a Nest thermostat before, you'd understand why a square display would be stupider.

It would either:

1. force a larger interface so the square display could have its diagonal fully enclosed by the diameter of the radial control (i.e., oafishly large thermostat too big for a human hand to easily manipulate)

2. force a smaller LCD to fit inside a normal hand-sized radial control, making it less readable to all but the spriteliest of youths

3. make a radial control that is a spinning rhombus, which is pretty ugly

Or we could just do what the Nest does and the only person who "suffers" is the original designer, one time, when they write the code

I don't think they're stupid, especially if the application isn't particularly information dense.

Like... this is a thing meant to be operated at arm's length. Some extra pixels aren't going to meaningfully improve how you view the current temperature.

Is there some sort of ideological imperative to use every single pixel? If your product design doesn’t call for it because of low information density, who cares.

Proud of your work! Keep it up

Well done, seems like a very challenging project!

Is there a reason you wired MOSI and MISO together with a resistor instead of setting the SPI_SIO bit in the ESP32C6's SPI controller? The reference manual[1] says that bit enables "3-line half-duplex communication, where MOSI and MISO signals share the same pin" (page 866). I'm not sure if it's suitable, since the half-duplex mode (see section 28.5.8.4) seems to be designed mainly for talking to SPI flash chips.

[1] https://www.espressif.com/sites/default/files/documentation/...

Yep that’s what we are working on at https://sett.homes - you can pre order the replacement for the Nest 2nd gen.

I agree that I want something aesthetically pleasing if it’s going to be displayed on the walls of my home where I entertain. Nest has always been the best for this, but the software has limited it. Hence, Sett - open source PCBs in the beautiful Nest enclosure