Evaluate Display functionality

[moritzholzer]

which type of display (monochromatic or color/ touch or not)

How we want to draw the Pet

[leandrolanzieri]

FYI: RIOT supports LVGL as a package https://lvgl.io/
Here is an example application https://github.com/RIOT-OS/RIOT/tree/master/tests/pkg/lvgl, and here another one but with touch support https://github.com/RIOT-OS/RIOT/tree/master/tests/pkg/lvgl_touch

[AnnsAnns]

These don't have a lot of pins, would need a driver though:
https://www.az-delivery.de/en/products/0-96zolldisplay
https://www.amazon.de/GeeekPi-Display-zweifarbiges-Raspberry-Arduino/dp/B0BB1T23LF

This one has a driver for riot and has colour but also consumes 500 trillion pins: https://doc.riot-os.org/group__drivers__ili9341.html

[AnnsAnns]

If we're going to use the microcontroller we currently have we should probably just go with one of the two non-driver boards. Both use simple I²C so it should be fine.

[moritzholzer]

• i got the following tft to work:
  https://www.adafruit.com/product/1651
• pinout:
  https://learn.adafruit.com/adafruit-2-8-tft-touch-shield-v2/stmpe-resistive-pinout (and use an arduino pionout for reference)
• code is under the tftTest branch
  when we dont use the touchscreen we need following pins:
• 3.3V
• Ground
• SCKL
• MOSI
• CS
• DC

in RIOT/drivers/ili9341/include/li9341_params.h the pins are changed to:
#define ILI9341_PARAM_CS GPIO_PIN(0, 27)
#define ILI9341_PARAM_DCX GPIO_PIN(0, 26)
Which are ports 10 and 9 on the feather reference: https://learn.adafruit.com/introducing-the-adafruit-nrf52840-feather/pinouts

[AnnsAnns]

Amazing work! Holy heck

[AnnsAnns]

Done