Description
The laser dust sensor for the control of air purity. Allows to detect particles with diameter more than 0.3 μm, designed to measure PM2.5 and PM10. It has a fan that sucks the air. The system is supplied with the voltage from 4.7 V to 5.3 V, communicates via UART signal or PWM with Arduino or Raspberry Pi.
Connecting
The sensor has seven leads, their description is in a table.In the case of connecting of sensor toArduinoor to other devices running with 5 V voltage, you must usea voltage converter.
|
Check how to connect the sensor with: |
| Pin | Description |
|---|---|
| NC | Not connected. |
| 1µm | Measurement of particles PM2.5 from 0 to 999 µg/m3; PWM output. |
| 5V | Supply voltage: 4.7 V to 5.3 V. |
| 25 µm | Measurement of particles PM10 from 0 to 999 µg/m3; PWM output. |
| GND | The mass of the system. |
| RXD | Receiver of UART interface (3.3 V) |
| TXD | The transmitter of the UART interface (3.3 V) |
Specification
- Supply voltage: 4.7 V to 5.3 V
- Current consumption: 70 mA
- Sensitivity: 0.3 microns
- Measuring range: from 0 µg/m3 to 999.9 µg/m3
- Communication: UART signal / PWM
- 7-pin connector: pitch 2.54 mm
- Working temperature: from -10 °C to 50 °C
- Atmospheric pressure: from 86 kPa to 110 kPa
- Tile sizes: 71 x 70 x 23 mm
Included:
- Laser air pollution sensor
- USB - UART converter
- Connection cables
Useful links |
