Add support round display: GC9A01 240x240 IPS

[error105]

Describe the problem you have/What new integration you would like
Add support for beautiful round display with GC9A01 driver.

Please describe your use case for this integration and alternatives you've tried:
Support for round charts.

Additional context
Documentation from Waveshare:
https://www.waveshare.com/1.28inch-lcd-module.htm

[nickwilkie]

I second this! Would love to use this screen, particularly if the example renders like the 'gauge' could be included as a parameter rather than needing to draw it manually.

[jlips24]

This would be an amazing addition for devices like temperature/humidity sensors!

[Nilaik]

Just found this pull request: esphome/esphome#3625

[pvh0]

Just found this pull request: esphome/esphome#3625

Got this working with:

Example config.yaml

external_components:
  - source: github://pr#3625
    components: [ gc9a01 ]

spi:
  mosi_pin: GPIO13
  clk_pin: GPIO14

display:
- platform: gc9a01
  reset_pin: GPIO26
  cs_pin: GPIO15
  dc_pin: GPIO33
  rotation: 180
  lambda: |-
      it.line(0, 0, 100, 50);

[garethm79]

Thanks for this, I bought a few of these ages ago but never got around to doing anything and was pleased to see all the hard work done. They are really nice and very very cheap, I assume they are surplus/rejected smartwatch displays.

Just wondering if there are any components/packages/examples for drawing a gauge on a display with ESPHome? I haven't done much with displays yet other than drawing text, and I'm sure it's a common thing for people to do.

[error105]

I make gauges on it, but in PlatformIO and just read values from mqtt from HA. Thats simple ;)

[garethm79]

Yeah I want to keep everything in ESPHome really. I'm just writing a component to draw a nice needle gauge from a sensor, based on the graph component.

[error105]

Can u show ?

[KevynWithaY]

I'd like to see the needle guage drawing component also

[nguyenquangduc]

53467127-2a55-4968-a332-bd327dcd00c5.mp4

I'm working on this device but the screen being too slow affects the matrix keyboard

[smkent]

I combined the various PRs I found here, added a color palette fix, and added some performance improvements to the gc9a01 component on my fork.

[clowrey]

Support is going mainline! esphome/esphome#6351

[TheOriginal92]

Is there any tool to create a nice gui with his display?

[nagyrobi]

Try esphome/esphome#6363, it's still work in progress, but already pretty stable.