描述
The Proton C is an Arm STM32F303xC based drop-in replacement for the Pro Micro. It uses the same chip as the Planck rev6 boards, and Skullydazed’s Arm Clueboards.
- Through-hole mounted USB-C Port
- 32-bit 72MHz Cortex-M4 processor (STM32F303CCT6)
- I2C, SPI, PWM, DMA, DAC, USART, I2S
- 23x 3.3V I/O Ports
- 1x 5V output for WS2812 LED chains
- 256kB flash
- 40kB RAM
- AST1109MLTRQ speaker footprint
- Reset button
Rev 2 made the following changes:
- Speaker pads on both sides of the PCB
- You can now connect one side of the speaker to GND to gain an additional I/O pin
- Both sides use a clear solder mask
- The gold-dipping was done before the solder mask, so the traces are now gold
原廠官方文件：https://qmk.fm/proton-c/
燒錄方式請參考：此文章。
