In this particular example, there is a ... I cut the trace leading to the Bluetooth interface module and soldered a wire so the switch now pulls an Arduino pin to ground when pressed.

For example, an early 90s stereo using the ... of volume controls and such is resumed. In final form, a Bluetooth module and Arduino Pro Micro are stuffed inside the stereo along with a DPDT ...

Then, an Arduino board might be ... protocols like Wi-Fi and Bluetooth, though. However, additional components -- a Wi-Fi shield and a Bluetooth module -- are required. The R4 WiFi is already ...