Trying out Teensy 4.1 connected to Adafruit MAX 98357a I2S audio amp (https://www.adafruit.com/product/3006) but all I get is a buzzing sound. The buzzing sound stops if I move finger near board or touch ground on board. But nothing from the sample audio files.
WaveFileSample.ino from Teensy Audio Examples is attached. Edited, I hope, correctly for this application.
Also attached the Arduino IDE compile messages.
Connections from Teensy to Adafruit :
5v Vin
Gnd Gnd
7 Din
20 Lrc
21 Bck
I am not a complete newbie, but only just.
Any help much appreciated.
WaveFileSample.ino from Teensy Audio Examples is attached. Edited, I hope, correctly for this application.
Also attached the Arduino IDE compile messages.
Connections from Teensy to Adafruit :
5v Vin
Gnd Gnd
7 Din
20 Lrc
21 Bck
I am not a complete newbie, but only just.
Any help much appreciated.