David Middlecamp
Published © Apache-2.0

Wi-Fi Walkie Talkies!

Send and receive sound between Particle Photons, using microphones and speakers from Adafruit! Easy and fun, 1 day build or faster.

IntermediateFull instructions provided28,588
Wi-Fi Walkie Talkies!

Things used in this project

Hardware components

Particle Photon
powerful little low power microcontroller, super easy to make a connected thing
Adafruit Speaker - 3" Diameter - 4 Ohm 3 Watt
a 3w 4ohm speaker should be plenty loud for this! We'll use a small amp to power it
Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302
so you can be loud!
Adafruit Electret Microphone Amplifier - MAX9814 with Auto Gain Control
I like this microphone because it adjusts the gain so you can use it from far away or close up easily!
Adafruit Tactile Button switch
push to talk! fits in a breadboard!
Adafruit Half-size breadboard
You might have a bunch of these laying around like me, if not they're super handy!

Software apps and online services

Particle Build Web IDE
Particle Build Web IDE
Particle CLI


Read more


Walkie Talkie Wiring Diagram

How to connect the pieces!

Fritzing Screengrab


Walkie Talkie Project Link

Grab the source from "firmware" and load it onto your photon!


David Middlecamp

David Middlecamp

8 projects • 82 followers
I help people build amazing things, I ship solutions to hard problems.