2,284 open source boards in Sensors
Environmental, motion, air-quality and measurement sensor boards. 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.
ESP32Kits
Poluino
90.2 × 53.3 mm15 parts2LTAPR-OHL-1.04
AVR/ArduinoLearning
serenebliss0
171 × 90.5 mm14 parts4LMIT4
Hall-Sensor-Board
PickleWorks-Design
28.6 × 72.6 mm11 parts2LCustom license4
Dustbox
citizensense
58 × 58 mm9 parts2LNo license4
RP2040/RP2350Odyssey
MeghanaM4
20.9 × 26 mm7 parts2LMIT4
MA702-Breakout-Board
motionlayer
23 × 23 mm6 parts2LMIT4- schematic only · 33 partsSTM32
Aieda greenhouse
yplam
33 partsNo license4 
AVR/ArduinoExp control board
Coen-Lab
120.2 × 224.7 mm262 parts4LAGPL-3.03
STM32ProPrj IRIS
Eugene109
92.7 × 72.5 mm244 parts4LGPL-3.03
STM32FOC KING
b264
75.2 × 99.5 mm238 parts4LNo license3
STM32BLDC MC V1.0
AhmedAbo-Eita
123.5 × 58 mm223 parts8LNo license3
ESP32Autonomous-Garden-Rover
houseofthe051010
108 × 168 mm217 parts4LMIT3
STM32Sensors Module
Queens-Rocket-Engineering-Team
69.5 × 62.6 mm184 parts4LNo license3
Balancer
kwiecinski
99.5 × 99.5 mm165 parts2LMIT3
TI MSP430/CCHestia
mawson-rovers
90.2 × 95.9 mm141 parts4LMIT3
STM32NP1 ELECTRONIC SPEED CONTROLLER
nikphillydev
102.5 × 45 mm135 parts4LMIT3
TI MSP430/CCRF Board
jbrown3859
90 × 90 mm124 parts4LNo license3
RP2040/RP2350SHEGO16-QMK-Hall-Effect-Macropad
Charading
121.9 × 81 mm120 parts2LNo license3
ESP323117 AUSIGN
r4hulrr
60 × 60 mm113 parts4LMIT3
STM32CPU Board
jsjolund
100 × 70 mm112 parts2LNo license3
Raspberry PiPicalor
ul-gh
65 × 56 mm112 parts4LGPL-3.03
ESP32Prototype Rev-
DiegoBriceno03
59.9 × 66.3 mm104 parts2LNo license3
ESP32Sigfox chicken coop
Jeija
50 × 53 mm99 parts4LNo license3
RP2040/RP2350V4d2 pico
tomcombriat
54.2 × 94.2 mm99 parts2LTAPR-OHL-1.03
AVR/ArduinoLr hudiy rpi hat
sedlons
87.4 × 56 mm90 parts2LNo license3
McDapBots KiCad TIMSPM0
DavidMe03
128.3 × 158.1 mm79 parts2LNo license3
ESP32OSCD Demo
tmjnijssen
94.6 × 94.6 mm76 parts4LCERN-OHL-P-2.03
ESP8266Soil Sensor Hub
ArtoLabs
98 × 91.1 mm74 parts2LMIT3
ESP8266Weather station
mec-kon
24 × 57.8 mm73 parts2LGPL-3.03
STM32RS485-Gassensor
Sarbf1
92 × 46 mm71 parts2LApache-2.03
Microchip SAMCatWAN Citizen
ElectronicCats
52 × 80 mm66 parts2LAGPL-3.03
STM32Rfc tackle sensor
Celnardur
47 × 59.7 mm66 parts4LMIT3
LowLoRa
SorenGilkeyJohnson
23.4 × 25.4 mm64 parts4LCERN-OHL-S-2.03
TFESC02
ThunderFly-aerospace
45 × 45 mm63 parts2LGPL-3.03
ESP32Posture-Tracker-Using-ESP32
kiranj26
47.9 × 28.5 mm52 parts2LMIT3
OpenSoundMeter
AGordiGuerrero
98.6 × 41.3 mm52 parts2LNo license3
Browse boards by part
AMS1117-3.3 1014USBLC6-2SC6 819RP2040 607W25Q128JVS 382TL072 308AP2112K-3.3 300TL074 274ESP32-S3-WROOM-1 258CH340C 241L7805 223Pico 21874HC595 210USBLC6-2P6 199LM358 18674LS04 173AP2112K-3.3TRG1 172ESP32-WROOM-32 165SRV05-4 163Arduino_Nano_v3.x 15674LS245 155LM7805_TO220 15274LS138 151W25Q128JVSIQ 15074LS32 146