3,217 open source ESP32 boards
Espressif's Wi-Fi and Bluetooth microcontrollers — bare chips and WROOM/WROVER modules, S2, S3, C3 and C6. Every board here is a public GitHub project with its KiCad files, read for size, layers and parts. Pick one close to your design and simulate its firmware on HardLabs before you build it.
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k
ESP32Pslab mini hardware
fossasia
85 × 56 mm154 parts4LApache-2.01.2k
ESP32Cube motherboard
willem-pennings
95 × 95 mm42 parts4LGPL-3.01.1k
ESP32Aero-Hand-Open-Left
Chestnut-Robotics
40.8 × 43 mm23 parts2LCustom license971
ESP32Upsy desky
tjhorner
40.9 × 58 mm44 parts2LNo license833
ESP32Kv4p HT
VanceVagell
38.1 × 82.6 mm87 parts4LGPL-3.0814
ESP32Esp rust board
esp-rs
22.9 × 63.5 mm48 parts2LNo license647
ESP32ESP32-li ion cell monitor pan
pcbreflux
94 × 26 mm47 parts2LGPL-3.0608
ESP32Nest mini drop in
iMike78
74.5 × 70.6 mm243 parts4LCERN-OHL-S-2.0598
ESP32Silkscreen
iandchasse
60 × 111.3 mm171 parts2LCERN-OHL-S-2.0554
ESP32Ulx3s
emard
94 × 50.8 mm212 parts4LMIT463
ESP32ESP32
Chrismettal
66.4 × 48.1 mm70 parts2LCC-BY-SA-4.0446
ESP32BitaxeGamma
bitaxeorg
56.5 × 99.8 mm90 parts4LCERN-OHL-S-2.0418
ESP32ESP32-PoE Rev K
OLIMEX
28 × 80 mm131 parts4LApache-2.0407
ESP32AirCube
45 × 45 mm52 parts2LApache-2.0357
ESP32Patternflow
engmung
62 × 116.3 mm9 parts2LCustom license338
ESP32ESP32-GATEWAY Rev I
50.8 × 62.2 mm98 parts2LApache-2.0320
ESP32ESP32-EVB
75.2 × 74.7 mm157 parts2LApache-2.0285
ESP32SmartSPin2k
doudar
57.2 × 60.3 mm79 parts2LGPL-2.0283
ESP32DropBear
speeduino
116.1 × 98 mm196 parts2LNo license281
ESP32Terrarium Control Board
justbuchanan
140 × 140 mm51 parts2LApache-2.0270
ESP32Bms c1
LibreSolar
135 × 70 mm167 parts4LCERN-OHL-W-2.0260
ESP32Duet 2
Duet3D
100 × 123 mm348 partsCERN-OHL-1.2257
ESP32Doorman S3
AzonInc
37.1 × 37.2 mm32 parts4LGPL-3.0241
ESP32FreeDSP-aurora
freeDSP
110 × 110 mm502 parts2LCC-BY-SA-4.0222
ESP32Uncut Gem
QuantumVillage
82.1 × 82.1 mm110 parts2LAGPL-3.0197
ESP32Z2m partner
smarthomefans
50 × 50 mm50 parts2LNo license187
ESP32TheTick
jkramarz
33 × 22.5 mm33 parts2LGPL-3.0183
ESP32Yatchy
Szybet
33.8 × 38 mm89 parts4LNo license180
ESP32Mdb slave esp32s3-sim7080g
nodestark
65 × 40 mm77 parts2LMIT173
ESP32Meshtastic DIY 1W board
Hydra-Designs
28 × 46.2 mm43 parts2LGPL-3.0166- schematic only · 87 partsESP32
Antenny
RedBalloonShenanigans
87 partsNo license164 
ESP32LCDZapperPro
charcole
90 × 76.5 mm110 parts2LCC-BY-NC-4.0161
Open source ESP32 boards at a glance
The gallery holds 3217 open source ESP32 boards from 2235 GitHub repositories; a typical one measures about 78 × 65.5 mm and carries around 52 components.
67% are two-layer designs, the rest use four layers or more, and 44% carry an open source license.
The most starred is Open Book Abridged Edition by joeycastillo.
Parts most used on ESP32 boards
What ESP32 boards are built for
Open source ESP32 boards: common questions
Where can I find open source ESP32 boards?
This page lists 3217, each read from its KiCad files on GitHub: board size, layers, the full parts list and a render of the PCB, with links to the original repository.
What parts are most common on ESP32 boards?
The AMS1117-3.3, ESP32-S3-WROOM-1, USBLC6-2SC6, ESP32-WROOM-32 and CH340C appear in the most repositories here.
How big is a typical ESP32 board?
The median is 78 × 65.5 mm, and 67% are two-layer designs.
What is the most popular open source ESP32 board?
By GitHub stars, Open Book Abridged Edition by joeycastillo, with 8,077 stars.
Can I simulate one of these ESP32 boards before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.