Documentation and ESPHome templates for 1.28 inch 240*240 ESP32C3 Round Display with Rotary Knob UEDX24240013-MD50E by VIEWE company

This display is available on AliExpress for less than $25. It is based on the ESP32C3 chip and features a round IPS display with a 240x240 resolution, a GC9A01A display driver with LVGL support, PWM-controllable backlight, and an aluminum rotary encoder knob around the display with a push button function.

The display should be powered by 5V and connected via a 10-pin FPC flat cable. It comes with a development breakout board that includes a micro-USB socket and pinholes for connecting external power and accessing GPIO pins.

This dev board appears to be unified for different display types, as it has two sockets for FPC cables and provides some additional pins that are not used by this specific display. However, the easy access to GND, 5V power, and 3 unused GPIO pins (GPIO03 ADC, GPIO20 RX, and GPIO21 TX) for connecting additional components like sensors is very convenient.

The build and material quality are very high. It looks great, and the knob has a satisfying tactile feedback. The display is bright with wide viewing angles. While this product does not have a touch screen, for such a compact size, it is not necessary, as the encoder knob is sufficient.

Demo video of ESPHome LVGL kitchen hood timer and ventilation control app prototype. Display is running 40% brightness. Actual video quality looks not so good as the display really performs (no flickering, no color tint, very sharp edges)

https://youtu.be/72yZuVzMxHs?si=tAFymHM5Zbg2VTi-

Aliexpress (manufacturer shop)

https://www.aliexpress.com/item/1005007045539218.html

Quick Specifications according to manufacturer:

Model：UEDX24240013-MD50E

1. CPU: ESP32-C3
2. Storage: 400K Ram + 4MB Flash
3. Power supply: DC 5V, 500mA
4. Operation type: Rotate and Press
5. Ambient light: RGB three-color light ring at the bottom, can be customized according to needs
6. Appearance: oil spray, black/silver/red, metal/plastic optional
7. Support 2.4G Wi-Fi, BLE 5
8. Storage temperature: -30~80°C
9. Working temperature: -20~70°C

Full Product Specification and Schematics

https://github.com/VIEWESMART/ESP32-Product-Specification-and-Schematic/tree/main/1.3inch

Manufacturer web site:

https://viewedisplay.com

Product page:

https://viewedisplay.com/product/1-28-inch-240240-esp32-round-knob-smart-tft-display-with-rotary-knob-wifi-ble/

Manufacturer GitHub account:

https://github.com/VIEWESMART

Manufacturer documentation and code examples for Arduino and ESP32-IDF:

https://github.com/VIEWESMART/ESP32-IDF/

https://github.com/VIEWESMART/ESP32-IDF/tree/main/examples/1.3inch

https://github.com/VIEWESMART/ESP32-Arduino

https://github.com/VIEWESMART/ESP32-Arduino/tree/main/examples/1.3inch