Chris Greening
Published © MIT

ESP32 Walkie-Talkie

It's a Walkie-Talkie based around the ESP32. It transmits audio using either UDP Broadcast or ESP-NOW.

IntermediateFull instructions provided3 hours4,483
ESP32 Walkie-Talkie

Things used in this project

Hardware components

Adafruit I2S 3W Class D Amplifier Breakout - MAX98357A
https://www.adafruit.com/product/3006
×1
I2S MEMS Microphone Breakout Bord
User either the INMP441 or my board the ICS-43434
×1
Generic 4ohm or 8ohm speaker
Available from Amazon and other hobby stores
×1
Generic ESP32 Dev Board
Pretty much any board should work so long as it has sufficient free GPIO pins
×1
Push button switch
Optional - you can use the built in switch on your dev board
×1

Story

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Schematics

Schematic

https://oshwlab.com/chris_9044/esp32-walkie-talkie

Code

Source Code

Get it from GitHub

Credits

Chris Greening

Chris Greening

3 projects • 7 followers
I originally did a degree in Electronics, but I've been doing Software for all my career. I'm back into embedded now and loving it.

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