A Palm Portable Keyboard Bluetooth Adapter #Keyboards #Feather #Bluetooth @Hackaday

Turn a foldable keypad originally designed for Palm devices into a Bluetooth keyboard!

The project uses an Adafruit Feather nRF52840 Express board, which has Bluetooth 5.0 with BLE support. This makes it:

• Very power efficient (compared to ESP32), so we can use a much smaller Li-Po battery and the final product is smaller in size.
• Easier to program and up-to-date Bluetooth version (compared to ATmega16U4 + Bluetooth module)
• Has a built-in Li-Po charge circuit and a battery voltage reading pin.

Details on the project along with code are on GitHub. The keyboards can be found on eBay and elsewhere.

See the video below and more on Hackaday