NRF52840 ProMicro BLE Wireless MicroController

This is ProMicro pinout compatible BLE (Bluetooth Low Energy) microcontroller for both  wireless and keyboard projects. This is an excellent low cost alternative for your wireless projects.

Compatible with ZMK, Micropython, and TinyGo Keyboard firmware.

Key Features:

• 64 MHz Cortex-M4 with FPU
• 1 MB Flash, 256 KB RAM
• 2.4 GHz Transceiver
• 2 Mbps, 1 Mbps, Long Range
• Bluetooth Low Energy, Bluetooth mesh
• ANT, 802.15.4, Thread, Zigbee
• +8 dBm TX Power
• 128-bit AES CCM, ARM CryptoCell
• UART, SPI, TWI, PDM, I2S, QSPI
  
• 12-bit ADC
• NFC-A
• USB 2.0