Laser dust/air pollution sensor SDS011 PM2.5 - 5V UART/PWM

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:

• Arduino - sample program
• Raspberry Pi and other minicomputers

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

• Documentation of sensor SDS011
• Program in Python
• Program for Arduino