The Nice!Nano Controller the best NRF52840 Development Board for Ultimate Wireless Keyboard
The nice!nano is a wireless, BLE (Bluetooth) enabled replacement for the Pro Micro or Elite-C powered by the nRF52840 SoC. The nice!nano utilizes a LiPo battery allowing you to make your board completely wireless and has an on-board charging circuit, so simply plug in your keyboard to charge the battery, and use it wireless any other time you want.
Please checkout out helper PCB to manage your battery if your keyboard does not do it for you.
Full ProMicro Compatibility: The Nice!nano boasts the same pin configuration as ProMicro, ensuring seamless compatibility with most ProMicro keyboards. Say goodbye to compatibility issues and hello to easy integration.
Power-Efficient Design: The Nice!nano is designed with power efficiency in mind. It features a 3.7V lithium battery interface and a software switch to cut off LED power, drastically reducing standby power consumption to as low as 1mA. Enjoy extended battery life without sacrificing performance.