It’ll be a little tricker to decipher the plug detection scheme ... trace leading to the Bluetooth interface module and soldered a wire so the switch now pulls an Arduino pin to ground when ...

In final form, a Bluetooth module and Arduino Pro Micro are stuffed inside the stereo along with a DPDT relay to switch the I2C bus. An external button is used to trigger the Arduino to switch to ...

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