Looking to use SpeakerPhat for audio only (no LEDs) with a Pi Zero W and need to use wires to connect them due to height contraint. What pins are absolutely necessary for this? From the pinout diagram, it looks like:
2: 5V,
12: BCM18,
35: BCM19,
40: BCM21
Is this correct? Does ground need to be connected as well; if so, which?
Correct- if you’re not using the LEDs you might be able to get away with just using physical pin 39 for ground.
Thanks! Will give it a try with just the 5 pins once the SpeakerPhat arrives: 2, 12, 35, 39, 40.
No luck getting audio out. Made sure to use spacer nuts, soldered two wires on, connected pins 2, 12, 35, 39 and 40, installed speakerphat software; even tried secondary ground 9 and stopping pulseaudio. Anything else I might be missing? Is the SpeakerPhat fairly reliable?
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Got audio working. Weak solder for one of the speaker contacts. Getting some crackling and popping sounds and will check the board for solutions
A newer Speaker pHAT should have a basic circuit in place to stop popping, try soldering physical pin #17 (the 3.3v pin) and that should clear up the pops. This could also be the source of the crackling. I need to update Pinout.xyz with this pin!