{"title":"PM2.5 Air Quality Sensor with I2C Interface - PMSA003I","handle":"pm2-5-air-quality-sensor-with-i2c-interface-pmsa003i","url":"/products/pm2-5-air-quality-sensor-with-i2c-interface-pmsa003i","description":"The PMSA003I is a compact particulate matter sensor that measures PM1.0, PM2.5, and PM10.0 concentrations using laser scattering. Unlike most PM sensors that use UART, this version features an I2C interface, making it straightforward to use with Arduino, Raspberry Pi, and other microcontrollers without needing software serial.\n\nThis is the bare sensor module, designed to plug into a 2×5 0.05\" pitch SMT connector. One connector is included for soldering thin wires if you don't want to design a full PCB. The I2C data stream updates once per second.\n\nKey Features\n\n\nI2C Interface – Simpler integration than UART-based PM sensors\n\nLaser Scattering Detection – Accurate particulate matter measurement\n\nMulti-Size Particle Data – Reports PM1.0, PM2.5, and PM10.0 concentrations\n\nParticle Size Bins – Counts per 0.1L in 0.3, 0.5, 1.0, 2.5, 5.0, and 10 µm categories\n\n1-Second Update Rate – Continuous real-time air quality data\n\n\nSpecifications\n\n\nSensor – PMSA003I\n\nInterface – I2C (3.3V logic)\n\nPower Supply – 5V\n\nConnector – 2×5 0.05\" pitch (10-pin)\n\nMeasurements – PM1.0, PM2.5, PM10.0 (standard and environmental units)\n\nUpdate Rate – 1 second\n\n\n\nNote: Requires 5V power and 3.3V logic I2C. External 10K pull-up resistors are needed on the I2C lines.\n\n\nIdeal For\n\nIndoor and outdoor air quality monitoring\nEnvironmental sensing stations\nRaspberry Pi and Arduino air quality projects\nDust and particulate detection\n\n\nPackage Contents\n\n1× PMSA003I sensor module (assembled)\n1× 2×5 10-pin 0.05\" pitch header\n\n\nResources\n\nArduino Library (GitHub)\nCircuitPython Library (GitHub)\n","vendor":"Adafruit","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":4133,"title":"Default Title","sku":"AF-4505","price":77.94,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}