Web Radio Test with ESP32 and MAX98357 I2S class D amplifiers.
Please see schematic for the wiring. The two resistors configure the MAX98357A boards for Stereo. You can wire one MAX98357A board, leave off the resistor to get both left and right channels through one speaker.
Use the onboard BOOT button to set the volume.
Power though USB connector on development board, or 5V and GND directly on Development board.