This is a screen for advanced hackers who like the look of a nice, round TFT screen with tons of pixels. This massive 4" diagonal-sized display has 720x720 16-bit full-color pixels and is an IPS display, so the color looks great up to 80 degrees off-axis in any direction.
The TFT driver is ST7701S and uses both SPI and TTL RGB 'dot clock' data. The SPI is only for configuring the display - you cannot draw pixels over SPI! Also, despite having a 40-pin connector, it does not have the same pinout as standard 'rectangular' 800x480 (4.3", 5" or 7") or 480x272 (4.3") displays. It's a new kind of beast for sure.
To make stuff light up you'll need a chip that can perform TTL RGB TFT driving, which means a powerful microcontroller such as the ESP32-S3 with octal PSRAM or a computer like a Raspberry Pi (with either direct-DPI connection or an intermediary chip like the ICN6211). Either way, it's not something you can wire up to your Feather or Arduino!
Package Includes!
- 1 x Round RGB TTL TFT Display