DIY Bluetooth receiver.
Bluetooth in → stereo line out.
24V DC in → stepped down to 5V → B0505S-1W isolated 5V out, plus polarized and non-polarized capacitors doing their best to keep the audio side clean and away from the digital noise.
And then, as the cherry on the cake, the actual BT board bastard — soldering that thing requires the hand stability of a neurosurgeon, the patience of a medieval monk, and enough self-control not to turn the whole project into a ballistic object.
Nothing exotic. Voltage, isolation, capacitors, chaos, signal out — and unreasonable self-control.
✌️hal_0009