Portable Bluetooth speakers have joined the club of ubiquitous personal electronics. What was once an expensive luxury is now widely accessible thanks to a prolific landscape of manufacturers mass … ...

DastardlyLabs uses a USB host shield, a Bluetooth module, an Arduino Pro Mini, ... From there, you just need to connect that keyboard to your little device and it’s all set to broadcast.

Introduction:In Arduino environment, it's convenient to access BT SPP like a serial port and react to the command string sent from the BT serial port.