LILYGO T-Keyboard S3 Pro Slave(STM32) Development Board – Shenzhen Xinyuan Electronic Technology Co

Module
1. Main MCU Model: ESP32-S3-WROOM-1 Chip: ESP32-S3-R8 PSRAM: 8M (Octal SPI) FLASH: 16M
2. Secondary MCU Chip: STM32G030F6P6 SRAM: 8 Kbytes FLASH: 64 Kbytes
3. Screen Screen Model: N085-1212TBWIG06-C08 Size: 0.85-inch Resolution Ratio: 128x128px Screen Type: TFT Driver Chip: GC9107 Bus Communication Protocol: Standard SPI Others: The RST, DC, MOSI, SCLK, and BL pins of all screens share a common bus. During initialization and reset, all screens are reset simultaneously. By selecting different CS lines, different screens can be controlled to refresh data.
4. Hot swappable button Specifications: The selected hot-swappable connector is from Kailh company, with a pin spacing of 6.35mm, making it compatible with all hot-swappable pins and buttons with a 6.35mm spacing. PCB connection: Pull enable to low voltage serves as a judgment signal. The KEY5 of the host is reused as the BOOT-0 for system power-on mode selection. By default, there is a 10K pull-up resistor, and low voltage is used as the judgment signal. In software, the pin must be configured as an internal pull-up to ensure stable usage. Others: Because screens need to be connected, please make sure to choose hot-swappable buttons with an opening in the middle, and the spacing should be greater than 7mm, which is wider than the ribbon cable width.
5. On board programmable LED lights Chip: WS2812C
6. Rotary encoder Describe: Four-legged copper top pin knob