Bluetooth LE is good enough for short-range communication, and there are a ton of boards and Kickstarter projects ... above Arduino level – and an HM-10 Bluetooth 4.0 Low Energy module.

The project uses a stock DuinoFun USB mini ... A FT-232 USB to serial board is used to program the Arduino. A standard Bluetooth module has to have HID firmware installed.

Panasonic released an evaluation board for the PAN B511-1C Bluetooth module that leverages the Nordic nRF54L15 single-chip ...