His “TOSLINK Transceiver Hat” utilizes a WM8804 chip from Cirrus Logic to go from the Pi’s I 2 S audio output to S/PDIF. From there the signal goes directly into the TOSLINK input and output ...

No shame in that! For the next revision, [Andrew] added buttons and decided to make it into a Raspberry Pi HAT. This HAT is essentially a simple display with a basic input device, and a beauty at ...

Sharma wrote it in Arduino IDE and handles all of the input control, LED functions, display features, and audio output. If you want to get a closer look at this Raspberry Pi project in action ...