I setup my Adafruit MAX98357 I2S Class-D Mono Amp according to the Documentation(https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp) on my Raspberry pi zero running raspbian stretch lite.
I tried both the automated script setup and the manual instructions.
I got to the point where speaker-test -c2 command outputs some sound when it runs the “Right Speaker” test, however no sound is played on the “Left Speaker” test.
I measured the voltage on SD and it’s about 0.4V.
Also no other tool produces any sound at all, i tried aplay with different params and lots of different input files (mono, stereo, difference rate), but I don’t get any sound.
I also tried the recommended mpg123, but same here: No sound.
What else could I do? Anything I could have missed?