StriderTR wrote on Yesterday, 02:40:

dominusprog wrote on 2025-08-14, 22:30:

That purple board, is it an amplifier?

Stereo I2S DAC. 😀

https://www.amazon.com/dp/B09C5QX228?ref=ppx_ … _fed_asin_title

Got it. So is it necessary for the wavetable to function? Or it can work as any other wavetable?

dominusprog wrote on Yesterday, 19:47:

StriderTR wrote on Yesterday, 02:40:

dominusprog wrote on 2025-08-14, 22:30:

That purple board, is it an amplifier?

Stereo I2S DAC. 😀

https://www.amazon.com/dp/B09C5QX228?ref=ppx_ … _fed_asin_title

Got it. So is it necessary for the wavetable to function? Or it can work as any other wavetable?

I don't believe so, at least not in this case. I mean, you need a DAC somewhere to convert the emulated digital output from the Pi Zero into an analog output the card can send to your speakers. Though, I could be mistaken.

On here, the 3.5MM jack isn't used. The DAC does the conversion and sends it right out to the wavetable header.

Pi Zero GPIO21 to the DIN (Digital Input) on DAC, then to the DAC Analog L&R outputs, then to Wavetable Header Pins 20 & 24 through a couple 10uf caps.