ESP32 Audio Output with I2S DMA and the MAX98357A Class D Amplifier

Hey Everyone, we’ve spent a couple of videos getting audio into the ESP32.

I2S input -    • ESP32 Audio Input Showdown: INMP441 vs SPH...  
ADC input -    • ESP32 Audio Input Using I2S and Internal ADC  

If you like ESP32 audio videos - I've got a complete set on this playlist:    • ESP32 Audio  

In this video, we’re now going to switch it up a bit and get audio out of the ESP32!

We're going to using the MAX98357A breakout board from Adafruit.

This is a class D amplifier with an I2S interface which is great because it means our audio signal stays digital all the way up to the speaker output.

You'll need a speaker to use the board with at least a 4ohm impedance and you can get up to 3W output.

Thanks for watching this video and if you found it useful please subscribe to the channel - there are more videos coming!

GitHub project is here: https://github.com/atomic14/esp32_audio

Componetns:

MAX98357 - https://amzn.to/3cg88Z5
TinyPico - https://amzn.to/3vVoONp
ESP32 Dev board: https://amzn.to/3gb6fyc
Speakers: https://amzn.to/3pjWFgq


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