316 open source ESP8266 boards
Espressif's original Wi-Fi microcontroller and its ESP-12 and ESP-01 modules. 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.
ESP8266HASwitchPlate
aderusha
60 × 40 mm8 parts2LMIT738
ESP8266Goatgdo
Kaldek
32.9 × 53.3 mm23 parts2LMIT506
ESP8266Iaq board
nkitanov
70.1 × 43.2 mm17 parts2LNo license398
ESP8266RetroWiFiModem
mecparts
100 × 66.1 mm29 parts2LGPL-3.0256
ESP8266Wifi game boy cartridge
Staacks
51.4 × 61 mm28 parts2LNo license238
ESP8266ME-ESP8266
MaloufSleep
66.8 × 34 mm73 parts2LMIT204
ESP8266TinyLlama
eivindbohler
100 × 77 mm138 parts4LGPL-3.0134
ESP8266Espway
espway
43 × 34.3 mm33 parts2LLGPL-3.0122
ESP8266PC-KHARON-386-MAIN
UzixLS
100 × 100 mm157 parts4LCC-BY-SA-4.0111
ESP8266Pcb ws2812-wifi controller
klein0r
49.4 × 35.8 mm18 parts2LMIT80
ESP8266Mideahvac dongle
reneklootwijk
20 × 48.5 mm19 parts2LNo license74
ESP8266Window-Door sensor-Version-5
gadjet
31.5 × 20.6 mm30 parts2LGPL-2.070
ESP8266Esp8266-for uppatvind
horvathgergo
70 × 36 mm27 parts2LGPL-3.060
ESP8266Tesla-Front-Drive-Unit
damienmaguire
190.5 × 176.6 mm196 parts4LNo license57
ESP8266TranspOtterNG
Jana-Marie
100 × 45 mm59 parts2LNo license51
ESP8266DCHDMI
citrus3000psi
74 × 58.8 mm92 parts4LMIT49
ESP8266Basicengine
uli
85 × 56 mm44 parts2LNo license48
ESP8266MIST.1010
100 × 100 mm259 parts2LMIT43
ESP8266POV-Globe
Mikail-Sadic-UT
83.6 × 86.6 mm95 parts2LNo license40
ESP8266FreeEEG32
neuroidss
69.8 × 69.8 mm213 parts4LAGPL-3.039
ESP8266ResQ
MKme
31.5 × 36.1 mm9 parts2LNo license39
ESP8266Internet of-Things-Power-Meter
Nurgak
33 × 61 mm9 parts2LNo license37
ESP8266Enlightened-Otter
100 × 100 mm171 parts2LGPL-3.035
ESP8266WLED PCB D1 Mini
f2daz
49.5 × 35.6 mm6 parts2LMIT34
ESP8266DCTransistor Bidirectional
LArkema
304.8 × 304.8 mm270 parts2LCC-BY-NC-4.030
ESP8266Split flap fae
codingcatgirl
40 × 80 mm39 parts2LApache-2.030
ESP8266Wifi PB panel
AntonioMR
100 × 100 mm162 parts2LNo license29
ESP8266Velux controller
thorio
69.9 × 69.9 mm31 parts2LGPL-3.028
ESP8266Homeassistant automaic greenhouse
felixwittwer
162 × 60 mm20 parts2LCC-BY-NC-4.027
ESP8266Iot wifi uno hw
iotmakervn
68.5 × 53.3 mm48 parts2LNo license26
ESP8266Pcb ttl ftdi esp adapter
73.1 × 18.3 mm11 parts2LMIT25
ESP8266ZXUNO.1010
100 × 100 mm215 parts2LMIT23
ESP8266Ikea fyrtur
mjuhanne
44.5 × 22.5 mm42 parts4LMIT22
ESP8266TapeDispenser
stephenjdc
50 × 30 mm13 parts2LNo license21
ESP8266ESP-AHT10-Extra
c-
38.3 × 20.8 mm26 parts2LNo license20
ESP8266Esp8266-led dimmer
stelioskat
36 × 31 mm10 parts2LMIT20
Open source ESP8266 boards at a glance
The gallery holds 316 open source ESP8266 boards from 251 GitHub repositories; a typical one measures about 70 × 55.4 mm and carries around 32 components.
90% are two-layer designs, the rest use four layers or more, and 45% carry an open source license.
The most starred is ESP8266ControllerCircuit by stuartpittaway.
Parts most used on ESP8266 boards
What ESP8266 boards are built for
Open source ESP8266 boards: common questions
Where can I find open source ESP8266 boards?
This page lists 316, 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 ESP8266 boards?
The ESP-12E, ESP-12F, WeMos_D1_mini, AMS1117-3.3 and LM1117-3.3 appear in the most repositories here.
How big is a typical ESP8266 board?
The median is 70 × 55.4 mm, and 90% are two-layer designs.
What is the most popular open source ESP8266 board?
By GitHub stars, ESP8266ControllerCircuit by stuartpittaway, with 1,136 stars.
Can I simulate one of these ESP8266 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.