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.
VAJRA 16-ir-Sensor-Array- Advance- LFR
sarthakchikte0312
137.8 × 91.2 mm50 parts2LNo license3
AVR/ArduinoPcb smd
rapidalarm
53.3 × 47 mm46 parts2LNo license3
Nervous-EDA
sensors-inl
26 × 40 mm46 parts2LMIT3
RP2040/RP2350RP2350B QFN-80 Minimal Design Example
Bubi2001
52 × 71.5 mm45 parts2LMIT3
ESP32LASK5 V2-0
Open-Muscle
75 × 35 mm43 parts2LCERN-OHL-S-2.03
YEARLING KIT -Z
proveskit
100 × 100 mm41 parts4LCERN-OHL-W-2.03
ESP8266TWIN NODE2
MAATHES-THILAK-K
46.6 × 35.5 mm41 parts2LApache-2.03
ESP32Panel
Dennis960
70 × 116 mm39 parts4LNo license3
Bluepill sensor
kellerkindt
50.4 × 50.4 mm39 parts2LApache-2.03
Silicon LabsProject-LabEmbeddedDesign2
Fescron
58.4 × 64.8 mm37 parts2LGPL-3.03
ShunkoBot Shield
Phersax
87.5 × 100.5 mm37 parts2LCC-BY-NC-4.03
I2C multiplexer TCA9548A
SolderedElectronics
38 × 54 mm35 parts2LTAPR-OHL-1.03
AVR/ArduinoKicad nmea2000 sensor
olliiiver
100 × 38 mm32 parts2LMIT3
RP2040/RP2350Mcu2
sadaoikebe
96.8 × 57.7 mm32 parts2LGPL-3.03
ESP32HeatPumpControl
hansrune
34.3 × 40.9 mm30 parts2LNo license3
AVR/ArduinoMicro mouse v2
prashantbhandary
73 × 68.5 mm26 parts2LNo license3
Capacitive soil sensor
22 × 109 mm25 parts2LTAPR-OHL-1.03
AVR/ArduinoDataLogger-Board
DevMajed
50.8 × 35.6 mm25 parts4LNo license3
CosmicRayDetector
RobertGawron
140 × 80 mm23 parts2LMIT3
AVR/ArduinoWaterTankMonitor
ncolomer
35.4 × 39.4 mm19 parts2LUnlicense3
RP2040/RP2350Rota Pi
AmmarSyamil
90 × 94 mm16 parts2LNo license3
ESP8266Esp8266-temp sensor
halicek
18.4 × 39 mm16 parts2LNo license3
Sensor board temperature
ZER0-cmd
32.3 × 32.2 mm14 parts2LCERN-OHL-S-2.03
Sensor
kaievns
34.9 × 19 mm13 parts4LNo license3
Ozone sensor-MQ131-breakout hardware design
22 × 38 mm12 parts2LTAPR-OHL-1.03
Attnode addon mh z19
theArcher73
30.5 × 37.3 mm12 parts2LGPL-3.03
STM32Sologear g3-15-electric unicycle
Suresh-Subedi
56.3 × 20.3 mm10 parts2LNo license3
BME280-Breakout
Destination-SPACE
12.7 × 12.7 mm10 parts2LCERN-OHL-P-2.03
Raspberry PiSmart-Home-Alarm
neez11
30.5 × 58.5 mm6 parts2LNo license3
Airy
iharhl
49 × 67 mm5 parts2LApache-2.03
TemperatureDisplay
RobThree
25.7 × 34.4 mm4 parts2LMIT3- schematic only · 7 partsESP32
ESP32-Garmin-Qautix5-Nautic-Sense.com
Sail-Tech
7 partsMIT3 - schematic only · 1 parts
ROHM SensorPlatform Multi-Sensor-Shield
ROHMUSDC
1 partsNo license3 
FPGASitina 1 Sensor Board
novvoo
71.5 × 63.6 mm415 parts6LMIT2
Symm60HE-Panel
Mokeded
162.3 × 227.8 mm363 parts2LGPL-3.02
ESP32SF 01 Compute Board
sandgum
128 × 128 mm332 parts4LNo license2
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