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ESP32S3-AI-Voice-Assistant

DhamuVkl·ESP32S3-AI-Voice-Assistant·Hardware/PCB/KiCAD_files/AI voice assistant.kicad_pcb

ESP32S3-AI-Voice-Assistant PCB layout, top view — open source ESP32 board by DhamuVkl
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About the ESP32S3-AI-Voice-Assistant PCB

ESP32S3-AI-Voice-Assistant is an open source ESP32 PCB design by DhamuVkl, published on GitHub under the MIT license. It is a 2-layer board measuring 60 × 60 mm, with 72 components from 36 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the BQ24250RGER, MAX20402AFLB/VY+T and MAX98357AETE+T. By type, the board carries 25 resistors, 22 capacitors, 4 ICs, 4 connectors, 4 diodes and 4 inductors.

It belongs with the audio, iot & wireless and displays & leds designs in this gallery.

From the project

A fully custom, open-source AI voice assistant powered by ESP32-S3 and Xiaozhi AI framework

A fully custom, open-source AI voice assistant powered by ESP32-S3 and Xiaozhi AI framework

This project is a complete DIY AI voice assistant built around the ESP32-S3 microcontroller. It combines custom PCB design, advanced audio processing, and cloud-based AI to create a device that rivals commercial smart speakers in functionality while remaining fully open-source and customizable.

Main components on the ESP32S3-AI-Voice-Assistant

BQ24250RGERMAX20402AFLB/VY+TMAX98357AETE+TESP32-S3-WROOM-1

ESP32S3-AI-Voice-Assistant bill of materials (BOM)

72 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
BQ24250RGER
IC1
1
MAX20402AFLB/VY+T
MAX20402AFLB_VY+T
IC2
1
MAX98357AETE+T
IC3
1
ESP32-S3-WROOM-1
Espressif Systems
U1
1
USB_C_Receptacle_USB2.0
GCT
J1
2
B2B-PH-SM4-TB(LF)(SN)
JST Sales America Inc.
J2, J3
1
Conn_01x08
J4
1
RESET
CIT Relay and Switch
BOOT1
1
UBOOT
CIT Relay and Switch
BOOT2
2
ICS-43434
MK1, MK2
1
SMT-0540-S-R
SPK1
2
SLW-66527511-SMT-TR
CUI Devices
SW1, SW2
2
LED Red
Harvatek Corporation
LED1, LED2
4
WS2812B
D1, D2, D3, D4
2
FerriteBead_Small
FB1, FB2
1
1uH
L1
1
1.5uH
L2
8
1uF
C1, C2, C4, C14, C17, C18, C19, C20
1
33nF
C3
2
22uF
C5, C6
Show 16 more
QtyPartRefs
4
2.2uF
Murata Electronics
C7, C8, C12, C13
4
0.1uF
C9, C10, C11, C16
1
10uF
Murata Electronics
C15
2
220pF
Murata Electronics
C21, C22
2
5K1
Panasonic Electronic Components
R1, R2
1
1.5K
Panasonic Electronic Components
R3
5
10K
Panasonic Electronic Components
R4, R5, R6, R19, R20
3
0R
Panasonic Electronic Components
R7, R8, R25
1
249R
Panasonic Electronic Components
R9
1
274K
Panasonic Electronic Components
R10
1
267R
Panasonic Electronic Components
R11
2
100K
Panasonic Electronic Components
R12, R15
3
20K
Panasonic Electronic Components
R13, R14, R18
2
1K
Panasonic Electronic Components
R16, R17
2
33R
Panasonic Electronic Components
R21, R22
2
NC
R23, R24

ESP32S3-AI-Voice-Assistant design files

The KiCad project lives in the DhamuVkl/ESP32S3-AI-Voice-Assistant repository on GitHub; these links point at the commit this page was built from.

ESP32S3-AI-Voice-Assistant: common questions

What microcontroller does the ESP32S3-AI-Voice-Assistant use?

The ESP32S3-AI-Voice-Assistant is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the ESP32S3-AI-Voice-Assistant PCB?

The ESP32S3-AI-Voice-Assistant measures 60 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32S3-AI-Voice-Assistant?

72 components, from 36 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the ESP32S3-AI-Voice-Assistant design files?

From the DhamuVkl/ESP32S3-AI-Voice-Assistant repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the ESP32S3-AI-Voice-Assistant design in my own project?

Yes, under the terms of its MIT license, which DhamuVkl chose for the repository.

Can I test firmware for the ESP32S3-AI-Voice-Assistant without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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