NRFMicro
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| Host port | USB Micro B or USB Type C |
|---|---|
| Microcontroller | nRF52840 |
| MPU | ARM Cortex-M4F |
| Voltage | 3.3V |
| RAM | 256KB |
| Program memory | 1 MB |
| Website | github.com/joric/nrfmicro/wiki |
The nRFMicro is a controller board with Bluetooth Low Energy, which is pin-compatible with 3.3V Pro Micro. Unlike some other boards with Bluetooth, it has the same small size as a regular Pro Micro.
It is based on the nRF52840 transciever/microcontroller module from CDEBYTE, running an ARM Cortex-M4F MCU. Has a built-in LiPo charger and a physical on/off switch on board.