Bluetooth interface

After the interfaces on ports LPT, COM, USB came time for Bluetooth.
There's a new Bluetooth BTM511 which enables the simultaneous operation of two profiles SPP and HFP. So you can simultaneously control the transceiver and transmit the audio stream. Program HRD or MixW handles this perfectly. We can sit back in his chair away from the radio, watch TV and at the same time do QSO on digital modes RTTY, BPSK etc.


Schematic
PCB