Tenstar ProMicro NRF52840 BLE 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. These are made by Tenstar Robot, and are identical to the Supermini's, however they are made on a red board.

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