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Gravity: PM2.5 Air Quality Sensor

SKU: SEN0460

The Gravity PM2.5 Air Quality Sensor employs laser scattering to accurately measure PM2.5, PM1.0, and PM10 particles, making it ideal for diverse environments and compatible with main controllers, offering precise air quality monitoring solutions for DIY enthusiasts and smart home applications.

Overview of Gravity: PM2.5 Air Quality Sensor

Downloadable Resources

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    • 1. Getting Started

    This article provides a comprehensive guide on using an air quality sensor to monitor particulates like PM2.5, PM1.0, and PM10. It includes details on the sensor's laser scattering principle, installation guidelines, and best practices for ensuring accurate readings in various environments.
    2. Example Code for Arduino

    The article discusses integrating an Arduino UNO with a PM2.5 Air Quality Sensor, providing example code for measuring particle concentrations in standard and atmospheric environments, along with wiring diagrams and setup instructions.
    3. Example Code for micro:bit

    The article offers a comprehensive guide to using a micro:bit board and PM2.5 sensor for measuring standard particle concentration. It outlines hardware and software requirements, including MakeCode setup, and provides sample code for reading particulate data. Readers can learn to evaluate air quality through coding, wiring diagrams, and result analysis.

    Specification

    Parameter Specification
    Working Voltage 3.3~5.0V
    Maximum Working Current 100 mA
    Standby Current ≤2 mA
    Data Interface Level L <0.8V, H> 2.7V, the maximum voltage level is 3.3V
    Particle Measurement Range 0.3 ~ 1.0 μm; 1.0 ~ 2.5μm; 2.5 ~ 10μm
    Particle Counting Efficiency 50% @ 0.3μm 98% @ ≥0.5μm
    Effective Range of Particle Mass Concentration (PM2.5 standard value) 0~500ug/m³
    Maximum Range of Particle Mass Concentration (PM2.5 standard value) ≥1000ug/m³
    Resolution of Particle Mass Concentration 1ug/m³
    Consistency of Particle Mass Concentration (PM2.5 standard value) 1. ± 10% @100 ~ 500 ug/m³; 2. ±10 ug/m³@0 ~ 100 ug/m³
    Standard Volume 0.1 L
    Single Response Time <1s
    Comprehensive Response Time ≤10s
    Working Temperature Range -10~+60℃
    Working Humidity Range 0~95%% (non-condensing)
    Mean Time Between Failures ≥5 years
    Product Size 67 mm * 40 mm * 14 mm / 2.64* 1.57 * 0.55 inches

    Pinout

    Serial number Screen printing Function description
    1 VCC/+ Power positive
    2 GND/- Power negative
    3 SCL/C I2C clock line
    4 SDA/D I2C data line

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