QMK Proton C - Rev2
QMK Proton C - Rev2
In Stock Ships Now
The QMK Proton C is back. A drop-in replacement for a Pro-Micro and more.
Through-hole mounted USB-C Port
32-bit 72MHz ARM Cortex-M4 processor (STM32F303CCT6)
I2C, SPI, PWM, DMA, DAC, USART, I2S
23x 3.3V I/O Ports
1x 5V output for WS2812 LED chains
AST1109MLTRQ Speaker Pads on Both Sides
Clear Solder Mask on Both Sides
The QMK Proton C Controller Is Back!
The incomparable qualities of the original:
32-bit Cortex-M4 Processor
USB-C Port that won’t break off easily
PWM on every exposed pin
A break-away section with extra pins and a place to mount a speaker
RESET button with a sane bootloader
With some new features for Rev2:
Clear solder mask on both sides
Speaker pads on both sides
You can now connect one side of the speaker to GND to gain an additional I/O pin
Add Audio To Your Build
The Proton C comes with speaker pads, so you can add Audio to any build. Just solder in a Mallory Sonalert AST1109MLTRQ and you’re setup for auditory feedback. Play a sound for layer changes, use Music Mode to turn your keyboard into a piano, enable Audio Click, or just use it as a delightful little soundboard. The audio setup will give you all new ways to increase the customization of your keyboard.
Upgrade Your Existing Pro-Micro Based Kit
Add a Proton C into any QMK-compatible kit that currently uses a Pro-Micro, and compile Proton C firmware without any extra work! We’ve done the heavy lifting of making your existing keyboards work without keymap changes. Just adjust your make target and it will build an ARM firmware instead of an AVR firmware.
Take Your Handwired Build To The Next Level
The quintessential controller for your custom build. Yes, you can have USB-C and Audio in your hand-wired builds! The Proton C provides 23 GPIO pins. That’s enough to wire a full sized keyboard!
QMK Proton C Rev2 Technical Specifications
Processor: ARM-7 Cortex-M4 STM32F303CCT6
Core Size: 32-Bit
Connectivity: CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB
Peripherals: DMA, I²S, POR, PWM, WDT
Number of 3.3v I/O: 23
Number of 5v Output: 1
Program Memory Size: 256Kb
RAM Size: 40K
USB-C Connector With Throughhole Fixing Pins
5v Output for WS2812 RGB Strips
RAW pin for 5v VCC-supply
Speaker Pad for AST1109MLTRQ on Both Sides
Email us first for available volume purchase discounts (MOQ 30).