Inspired by the esphome eink display project from these forums. Figured it would be easy to start with a smaller display, see how I like interacting with it, and maybe move on to a larger one depending on how I like this smaller one. Grabbed a waveshare esp32 and an eink display, and figured I was off to the races.
Cannot get the display to display anything. I can get the epd4in2_V2-demo provided by waveshare to work. I can flash the esp32 with a yaml that specifies either 4.20in and the 4.20in-bv2
Neither version gets a response from the eink display. If I swap in the 2.90inv2 (a model I know is the incorrect one), I can get the display to do something, but obviously this isn’t ideal.
Something is up with the versioning I don’t understand
Guesses:
Waveshare updated their 4.2in display, and I have an unsupported screen
Something is wrong with my yaml that I can’t grok looking at documentation
I am less informed about esphome then I thought I am, and it’s a third thing
Any guidance on this would be greatly appreciated. I’m still within the return period on the screen, so swapping out for a properly supported is a possibility.
I own this display too, and did not get to a working solution.
There is a complete different controller in this epaper, afair they also put the code for partial refresh into the controller hardware.
So I don’t expect this to work with ESPHome in the near future…
That’s too bad. These are decently priced for the size you get, and the more popular one (the 7.5 in) is a lil pricey. I’ll just return and think about how I’d like to move forward, thanks for the help!