549 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.
ESP8266K9AY with wifi
ra0sms
144.2 × 108.1 mm137 parts2LMIT2
ESP8266Nestbox v2
Octanis3
85 × 60 mm113 parts2LMIT2
ESP8266Reflowow oven controler
mickdassive
186 × 121.3 mm95 parts2LGPL-3.02
ESP8266AirMQ - ESP8266-0.4.8
AirMQ
98 × 49 mm88 parts2LCERN-OHL-P-2.02
ESP8266Esp8266controller
pe1mew
224.2 × 60 mm86 parts2LNo license2
ESP8266Cc pcbRedo
lagunter145
146.1 × 101.6 mm86 parts2LNo license2
ESP8266UProgrammer-Hardware
MackPI
76.2 × 50.8 mm72 parts2LMIT2
ESP8266MatrixClock
middelink
160 × 32 mm66 parts2LMIT2
ESP8266Placa Shield Bluepill-STM32
Rdisrael
99 × 90.1 mm64 parts2LNo license2
ESP8266Electra-100x100mm-2x1-panel
Grehasopt
100 × 100 mm59 parts2LCERN-OHL-S-2.02
ESP8266EVN Kaifa ESP MQTT
Tobias0110
79 × 31 mm59 parts2LGPL-2.02
ESP82663ChannelCCdriver
wszeto9
49 × 49 mm58 parts2LNo license2
ESP8266Traffic light
iley
35 × 130 mm50 parts2LNo license2
ESP8266Magstock2018
cnlohr
95.8 × 76.2 mm45 parts2LNo license2
ESP8266Rotenso wifi mod v2
saper-2
40 × 22 mm44 parts2LNo license2
ESP8266Sodastream power mod
gschwaer
78 × 46.3 mm43 parts2LUnlicense2
ESP8266ESP multi board
CRM-UAM
82.2 × 47.9 mm43 parts2LNo license2
ESP8266ESP-PogoPin-Programmer
barn53
64.5 × 17.8 mm35 parts2LMIT2
ESP8266Machine access node
leedshackspace
76.2 × 69.9 mm32 parts2LNo license2
ESP8266Documentation
Biomicrosystems
105 × 72 mm28 parts2LNo license2
ESP8266MeArm-Wireless
mimeindustries
65 × 56 mm27 parts2LNo license2
ESP8266Remote Relay
GadgetReboot
71.6 × 44.2 mm26 parts2LNo license2
ESP8266Curio
phybros
52.8 × 19.3 mm20 parts4LCC-BY-SA-4.02
ESP8266Esp8266-io board
tute-avalos
69.9 × 62.9 mm19 parts2LCC-BY-SA-4.02
ESP8266Labs
markentier
30 × 24.9 mm19 parts2LNo license2
ESP8266WledController
Gi7mo
96.5 × 36.8 mm18 parts2LNo license2
ESP8266Esp led dimmer
julianschuler
22.5 × 33.5 mm14 parts2LMIT2
ESP8266Esp8266-external temp sensor
theopensourcerer
29.5 × 38.1 mm14 parts2LNo license2
ESP8266N teller
atoomnetmarc
68.6 × 45.7 mm10 parts2LApache-2.02
ESP8266Nobo
csabigee
77 × 34.5 mm7 parts2LGPL-3.02
ESP8266Echelon
systemsculptor
70.2 × 42.5 mm5 parts2LNo license2
ESP8266EspMessenger
usini
51.3 × 32 mm3 parts2LMIT2- schematic only · 15 partsESP8266
Orbit
shasradha
15 partsMIT2 
ESP8266CA6
mribble
101.6 × 162.6 mm183 parts4LNo license1
ESP8266PixelFan LedLeiste
C3MA
343.3 × 297.3 mm160 parts2LNo license1
ESP8266N teller xl diy
228.6 × 91.4 mm132 parts2LApache-2.01
Browse boards by part
AMS1117-3.3 1847USBLC6-2SC6 1502RP2040 1017W25Q128JVS 654AP2112K-3.3 635ESP32-S3-WROOM-1 488TL072 446L7805 43674HC595 404TL074 404CH340C 392LM358 367Pico 356USBLC6-2P6 351AP2112K-3.3TRG1 345Arduino_Nano_v3.x 317LM7805_TO220 315ProMicro 29774LS04 285ESP32-WROOM-32 285PC817 260SRV05-4 25874LS245 257TP4056 250