75 open source boards in IoT & wireless
Wi-Fi, Bluetooth, Zigbee, Thread and cellular connected devices. 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
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Ulx3s
emard
94 × 50.8 mm212 parts4LMIT463
ESP32ESP32
Chrismettal
66.4 × 48.1 mm70 parts2LCC-BY-SA-4.0446
STM32EEZ DIB MCU r1B2
eez-open
139 × 70 mm191 partsTAPR-OHL-1.0391
NXPHackrf one
Charmve
120 × 75 mm416 partsBSD-2-Clause352
ESP32SmartSPin2k PCB
doudar
57.2 × 60.3 mm79 parts2LGPL-2.0283
ESP32Duet 2
Duet3D
100 × 123 mm348 partsCERN-OHL-1.2257
RP2040/RP2350Fanpico
tjko
135 × 81.5 mm208 parts2LGPL-3.0238
ESP32PCB business card remake
49 × 74.9 mm301 parts4LApache-2.0132
ZC95 MKII
CrashOverride85
191.5 × 76 mm319 parts2LGPL-3.0112
ESP32Bitclock
goat-hill
78 × 48 mm58 parts4LMIT112
ESP32Plantpal
teapotlaboratories
38.4 × 128.5 mm109 parts4LMIT97
ESP32LuxDMX
tombueng
119 × 79 mm93 parts4LNo license78
ESP32TRS-IO++
apuder
145.7 × 107.8 mm94 parts2LGPL-3.074
ESP32MRR ESPA
maplerainresearch
99.5 × 90.5 mm126 parts2LCERN-OHL-1.258
ESP32Ups to esp32
aronreid
36 × 58 mm38 parts2LGPL-3.052
ESP32AnthC
Anthilla
85 × 56 mm203 parts4LNo license39
ESP32MRR ESPE
102 × 102 mm164 parts2LCERN-OHL-1.238
Nordic nRFHotswap ble
ebastler
271.8 × 103.9 mm134 parts2LCC-BY-NC-4.036
Raspberry PiMesh radio-Halow-LoRa
ties1887
76 × 56 mm112 parts6LCC-BY-NC-4.036
ESP32Open ambient sensor
hubertciebiada
120 × 103.5 mm52 parts2LGPL-3.031
ESP32Charge Controller
jharvey
139.7 × 88.9 mm157 parts2LNo license24
ESP32AiO-i2s-DAC
martinroger
58.8 × 55.8 mm86 parts2LMIT22
ESP32Access controller
physiii
150 × 90 mm186 parts4LNo license13
ISM01
mlab-modules
60.5 × 40.1 mm94 parts2LGPL-3.010
STM32Fipper Zero
aaakum4
126 × 70 mm70 parts4LGPL-3.08
Wearable ECG ADS1293 nrf52840
NeDaMo93
24.4 × 35.6 mm41 parts4LNo license7- schematic only · 1 parts
MR-NAVQ95
NXP-Robotics
1 partsSHL-2.17 
ESP32Black-Flipper
Broccoliux
142.1 × 143 mm206 parts4LNo license6
AVR/ArduinoController board
andia89
69 × 54 mm73 parts2LNo license6
ESP32Esp32-c3-iot sensor board
Ans1S
35.4 × 21.6 mm57 parts4LMIT6
ESP32SensactHs
klaus-liebler
100 × 86.5 mm317 parts2LApache-2.04
AVR/ArduinoKOTH V2
Salted-Peanuts
100 × 100 mm41 parts4LMIT4
ESP32Board
dshills
120 × 80 mm17 parts2LMIT4
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k