Breathe easier with this amazing PM2.5 air quality sensor featuring an I2C interface. It allows you to track and sense the air quality around you effortlessly. Imagine Mad Max and Furiosa cruising through the post - apocalyptic Australian desert with this sensor in their truck! For those of us in the real world, this compact plug - in sensor is perfect for air quality monitoring. Unlike most sensors with UART interfaces, this one uses I2C, making it a great fit for single - board Linux computers like Raspberry Pi and plain Arduino UNOs. It's a bare module that plugs into a 2x5 0.05' pitch SMT connector, and comes with a connector for soldering thin wires if you don't want to make a full PCB. This sensor uses laser scattering to detect suspended particles in the air. The microprocessor then calculates the particle diameter and quantity. The I2C data stream updates every second, giving you PM1.0, PM2.5, and PM10.0 concentrations in standard and environmental units, along with particulate matter counts in different size bins. It also provides a binary checksum. We have libraries for Arduino and Python/CircuitPython to read and display the data in an easy - to - understand format. Each order includes a fully assembled sensor module with a 2x5 10 - pin 0.05' pitch header. Power the sensor with 5V and use 3.3V logic I2C to read, and remember to add external I2C 10K pull - ups! If you want the sensor on a STEMMA QT / Qwiic - compatible breakout board, we've got you covered.
Using this PM2.5 air quality sensor is quite straightforward. First, power the sensor with 5V. You'll need to use 3.3V logic I2C to read the data, and don't forget to add external I2C 10K pull - ups. The sensor comes fully assembled with a 2x5 10 - pin 0.05' pitch header. If you don't want to make a full PCB, you can use the included connector to solder thin wires. The I2C data stream updates once per second, giving you useful information about the air quality. You can use our Arduino and Python/CircuitPython libraries to read and checksum the data and get it in a human - readable format. As for maintenance, keep the sensor clean and free from dust. Avoid exposing it to extreme temperatures or harsh chemicals. If you're having trouble, make sure all the connections are secure and that you've followed the power and logic requirements correctly.
