710 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.
RP2040/RP2350Expansion board v4
naizhao
100 × 62 mm213 parts6LMIT11
ESP32Dronemagnav
ajisrawi
64 × 60 mm56 parts4LCustom license11
AVR/ArduinoEvoluent better
mon
35 × 54 mm30 parts2LMIT11
ISM01
mlab-modules
60.5 × 40.1 mm94 parts2LGPL-3.010
STM32Flight-Computer
ImperialSpaceSociety
28.1 × 76.1 mm57 parts4LNo license10
STM32Driva x2
owennewo
100 × 67 mm147 parts4LNo license9
1026-RPi-Power-Hat
wilsondr9999
85 × 56.5 mm121 parts4LCC-BY-SA-4.09
RPi-Hat-Thermocouple
mikelawrence
65 × 56 mm40 parts2LMIT9
Microchip SAMSprite
RoboticExplorationLab
47.2 × 35 mm77 partsNo license8
STM32Main
wgbowley
60 × 40 mm59 parts2LMIT8
ESP32Elegoo centaury carbon-Filament-Movement-Sensor
Sohcahtoaii
58 × 32 mm45 parts2LGPL-3.08
STM32Line-Follower-Robot-Using-STM32F103C8T6-with-TCRT-5000
bonavirak
99.8 × 82 mm32 parts2LMIT8
Load cell ampfilier-HX711-board hardware design
SolderedElectronics
22 × 22 mm18 parts2LTAPR-OHL-1.08- schematic only · 9 partsSTM32
MetaForge
FidelOdok
9 partsCustom license8 
Raspberry PiLamoka1/2
bearjhartjen
122.7 × 124.8 mm126 parts2LCERN-OHL-W-2.07
STM32OpenSTM32F4 LQFP64
phonght32
54 × 68 mm77 parts2LMIT7
NXPSigyn
wimblerobotics
96.5 × 76.2 mm73 parts4LApache-2.07
STM32Weather station
Invactive
90 × 32 mm59 parts2LNo license7
RPi pHat-Thermocouple
65 × 30 mm54 parts2LMIT7
Microchip SAMDropkick
rrainey
44.5 × 50.8 mm45 parts2LMIT7
Wearable ECG ADS1293 nrf52840
NeDaMo93
24.4 × 35.6 mm41 parts4LNo license7
ESP32GyroCube
Pedro-51
73.5 × 52.1 mm23 parts2LNo license7
ESP8266Cactus
hutscape
76.5 × 38.1 mm20 parts2LMIT7
Air quality sensor-MQ135-breakout hardware design
22 × 38 mm12 parts2LTAPR-OHL-1.07
Nordic nRFPalm
29.8 × 70.5 mm11 parts2LMIT7- schematic only · 1 parts
MR-NAVQ95
NXP-Robotics
1 partsSHL-2.17 
FPGAMppcInterface
muonTelescope
100 × 100 mm216 parts2LNo license6
STM32Alturia
rckTom
45 × 24 mm96 parts4LCC-BY-NC-4.06
ESP32Synchronisation-Wand
YuxuanHan0326
80 × 35 mm90 parts4LApache-2.06
AVR/ArduinoController board
andia89
69 × 54 mm73 parts2LNo license6
ESP32Esp32-c3-iot sensor board
Ans1S
35.4 × 21.6 mm57 parts4LMIT6
ESP32FleetGuard
Ahmed-YSY
106.5 × 66 mm7 parts2LCustom license6
AVR/ArduinoBATDATUNIT01
136.2 × 85.9 mm206 parts2LGPL-3.05
ESP32Esp32-faerfly-V2.0
low-poly-studio
85.1 × 53.3 mm83 parts4LNo license5
STM32TET-Module
ICDT-Inatel-Cubesat-Design-Team
90.2 × 95.9 mm76 parts4LCERN-OHL-W-2.05
RP2040/RP23500c3674082e0cce0e5fe83b9af95129ea7c01d67ed40b5156bc41833dda929227
autonomous-ai
82 × 58 mm61 parts2LMIT5
Browse boards by part
AMS1117-3.3 345USBLC6-2SC6 296RP2040 224W25Q128JVS 135TL072 118CH340C 116AP2112K-3.3 103ESP32-S3-WROOM-1 97TL074 94AP2112K-3.3TRG1 82SRV05-4 73W25Q128JVSIQ 73USBLC6-2P6 70Pico 52L7805 50XC6206P332MR 50MCP73831T-2ACI/OT 49SN65HVD230 49AMS1117-5.0 48ESP32-S3-WROOM-1-N16R8 48LM393 44BME280 43DW01A 43LAN8710A-EZC(QFN32) 43