ESP32 Audio Board WalkieTalkie

Ongoing

STD ESP32 Audio Board WalkieTalkie

Arduino

Audio

License: Public Domain

Mode:

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Update time： 2022-03-04 11:51:28

Creation time： 2021-03-19 19:35:38

Description

I'm building a Walkie-Talkie based around the ESP32. This PCB wires together all the required modules and adds an independent supply to the microphone boards so you minimise noise when WiFi is being used.

You can use either an INMP-441 board or my microphone board (available from Tindie: https://www.tindie.com/products/21519/)

I made up this PCB as the wires to connect all the modules were getting quite untidy and I wanted to build in the power supply filtering.

Design Drawing

schematic diagram

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PCB

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PCB_ESP32-walkie-talkie
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	ICS-43434 Breakout	U4	ICS-43434 BREAKOUT BOARD	1
2	MAX98357 Adafruit Breakout	U5	MAX98357A ADAFRUIT	1
3	10m	L1	IND-TH_BD10.0-P5.00-D0.7	1
4	HDR-M-2.54_1x9	GPIO,PWR	HDR-M-2.54_1X9	2
5	1u	C4,C3	CAP-TH_L5.0-W2.5-P5.00-D1.0	2
6	MCP1700-3302E/TO	U2	TO-92-3_L5.1-W4.1-P1.27-L	1
7	INMP441	U3	INMP441	1
8	1000u	C1	CAP-D10.0×F5.0	1
9	TinyPICO	NO	TINYPICO	1