Bluetooth Minidisc Remote

The Bluetooth Minidisc Remote will be a remote for portable Sony MD players that also transmits their audio over Bluetooth.

Status

2023-08-22: Started putting ideas together after getting back from a trip where I used a Bluetooth transmitter dongle connected to an RM-MC11EL a whole bunch.

Same basic functionality you'd have on a regular Sony remote, though with an OLED screen
Ability to remap buttons, if you want to use it with different portables or you want different controls in different places
Ability to lock ("hold") all the controls except volume, since I've always wished remotes allowed this
Bluetooth audio transmission to BT Classic endpoints (A2DP SBC)
Ability to play/pause the MD device via the play/pause button on the Bluetooth receiver
Transmitter will stop sending audio when nothing is playing (rather than sending silence like 3.5mm BT transmitters do)
At least 8 hours of battery life on a charge hopefully (since with Bluetooth and an OLED, the remote will need its own internal battery)
Custom 3D-printed enclosure that will hopefully not be that much bigger in L/W than the flat rectangular remotes for Kenwood portables, though will be a bit thicker because of the amount of stuff I'm trying to fit in