Promicro NRF52840 – The Replacement for nice!nano V2.0

The Promicro NRF52840 development board  is an alternative for nice!nano V2.0, featuring Bluetooth and battery charging management.The usage method is the same as that of nice!nano V2.0.

The default factory-installed program is Blink-All-IO (all IO ports automatically toggle every 1 second). To enter the Bootloader of the Nice!Nano V2, please short-circuit RST to GND twice within 0.5 seconds. For the keyboard board, simply press the RST button twice within 0.5 seconds.