HardLabs

Ai walkie revb

martinbear1·ai-walkie-revb-pcb

Ai walkie revb PCB layout, top view — open source ESP32 board by martinbear1

About the Ai walkie revb PCB

Ai walkie revb is an open source ESP32 PCB design by martinbear1, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 60 × 120 mm, with 89 components from 48 distinct parts.

Its main chip is the ESP32-S3-WROOM-1U-N16R8, from the ESP32 family. Other key parts include the MAX98357A, TPS63021DSJR, SN74AHCT1G125DBVR(UMW), BQ25896RTWR and BAT54C. By type, the board carries 40 capacitors, 20 resistors, 9 diodes, 7 ICs, 4 connectors and 4 switches.

It belongs with the power & battery designs in this gallery.

From the project

This repository contains the current editable KiCad source for the routed RevB PCB of AI Walkie, a screenless ESP32-S3 voice-companion / walkie-talkie device.

This repository contains the current editable KiCad source for the routed RevB PCB of AI Walkie, a screenless ESP32-S3 voice-companion / walkie-talkie device.

The original hardware design files in this repository are licensed under CERN-OHL-S-2.0. It permits making and commercial use while requiring distributed modified hardware documentation to remain under the same license. Third-party assets are not covered; see ATTRIBUTION.md.

Main components on the Ai walkie revb

MAX98357AESP32-S3-WROOM-1U-N16R8TPS63021DSJRSN74AHCT1G125DBVR(UMW)BQ25896RTWRBAT54CSY7088DGC

Ai walkie revb bill of materials (BOM)

89 components, 48 distinct parts.

QtyPartRefs
1
MAX98357A
ADI(亚德诺)/MAXIM(美信)
U1
1
ESP32-S3-WROOM-1U-N16R8
U2
1
TPS63021DSJR
TI(德州仪器)
U3
1
SN74AHCT1G125DBVR(UMW)
UMW(友台半导体)
U4
1
BQ25896RTWR
TI(德州仪器)
U5
1
BAT54C
CJ(江苏长电/长晶)
U6
1
SY7088DGC
Silergy(矽力杰)
U7
1
Battery
JST
J2
2
Conn_01x03
J3, J5
1
Speaker
JST
J4
2
~
XUNPU(讯普)
SW1, SW2
1
PWR_KEY
kinghelm(金航标)
SW3
1
PTT
SHOU HAN(首韩)
SW4
1
~
韩国韩荣
USBC1
1
PRTR5V0U2X
UMW(友台半导体)
D1
8
~
worldsemi
D4, D5, D6, D7, D8, D9, D10, D11
1
600Ω@100MHz 700mA
muRata(村田)
FB1
2
1.5uH Isat6.5A
JIERR(捷而瑞)
L1, L2
1
1µH Isat>=4A Low DCR
Sunlord(顺络)
L3
1
10µF 16V X7R
C1
Show 28 more
QtyPartRefs
1
22μF
Taiyo Yuden
C2
1
0.1µF 16V X7R
C3
1
1μF
C5
1
10μF
C6
10
0.1μF
C7, C10, C11, C12, C13, C14, C15, C16 +2
5
10µF 10V X7R
C8, C21, C22, C39, C40
1
1µF 16V X7R
C18
4
0.1µF 10V X7R
C19, C36, C41, C42
1
47nF 16V X7R
C20
3
22µF
C23, C27, C28
1
10µF
C24
1
1µF
C25
2
0.1µF
C26, C29
1
1µF 10V X7R
C30
1
22µF 6.3V X5R/X7R
C31
1
4.7µF 10V X7R
C32
2
100µF 10V Polymer C600583
KEMET(基美)
C33, C37
2
22µF 10V X5R/X7R
C34, C35
3
5.1kΩ
R1, R2, R3
2
10kΩ
R5, R8
6
10kΩ 1%
R6, R10, R11, R18, R19, R20
2
100kΩ
R7, R15
1
100Ω
R9
1
1MΩ 1%
R12
1
316kΩ 1%
R13
1
100kΩ 1%
R14
2
22Ω 1%
R16, R17
1
390Ω 1%
R21

Ai walkie revb design files

The KiCad project lives in the martinbear1/ai-walkie-revb-pcb repository on GitHub; these links point at the commit this page was built from.

Ai walkie revb: common questions

What microcontroller does the Ai walkie revb use?

The Ai walkie revb is built around the ESP32-S3-WROOM-1U-N16R8, from the ESP32 family.

How big is the Ai walkie revb PCB?

The Ai walkie revb measures 60 × 120 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ai walkie revb?

89 components, from 48 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ai walkie revb design files?

From the martinbear1/ai-walkie-revb-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Ai walkie revb design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which martinbear1 chose for the repository.

Can I test firmware for the Ai walkie revb 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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