Most boards have a blue LED to show the current status (flashing for pairing, solid for connected). 2. Pairing Guide
: Select "XFW-BT." A second prompt tone will confirm a successful connection, and you can begin playing music. Popular Use Cases xfw bt
: For medical or aerospace use, be prepared to demonstrate that the XFW signal cannot inadvertently demodulate into a dangerous low-frequency oscillation (e.g., rotor crash). Redundant frequency monitoring circuits are recommended. Most boards have a blue LED to show
