2 layers35 × 24 mm
CommonSense
antsouchlos/commonsense-hw
A BLE-based PCB for measuring humidity and temperature
37 partsMIT
Boards using the SHT41-AD1B-R2
9 boardsBoards in 9 GitHub repositories, designed in KiCad, that use the SHT41-AD1B-R2 by Sensirion (-40℃~+125℃ 0%RH~100%RH 1.08V~3.6V 16bit 400nA Factory calibration、Built-in heater I2C ±0.2℃ ±1.8%RH DFN-4(1.5x1.5) Temperature and Humidity Sensor ROHS). See how each wires it, with its parts, size, README and files; the SHT41-AD1B-R2’s symbol, footprint and pinout are on its own page.
- 2 layers25 × 141.9 mm
- 4 layers60 × 60 mm
Ummon
JonaWe/ummon
ummon (from German Umgebungsmonitor, "environment monitor") is an ESP32-C6 based environmental sensor board with USB-C power.
95 parts - 2 layers45 × 95 mm
Airquality
MorgenWebDigital/airquality
A battery-powered indoor air quality monitor. Real CO₂ from a photoacoustic sensor, VOC and NOx, temperature, humidity and ambient light, shown on a 2.13" e-paper display and sent over Bluetooth LE.
78 parts - 2 layers40 × 40 mm
Airqualitymini
MorgenWebDigital/airqualitymini
A stationary indoor air quality sensor. Real CO₂, VOC and NOx, temperature and humidity. No display, no battery. Powered from USB-C, read out over Bluetooth LE.
32 parts - 2 layers50 × 55 mm
- 4 layers42 × 85 mm
Device
jayis1/hardware-design-lab
Full-cycle hardware device designs — each device in its own subfolder with architecture, schematics, PCB layout, and software stack
26 parts - 2 layers100 × 103.5 mm
- 2 layers19 × 19 mm
