This product is EOL. Please order the new version PM2.5 Air Quality Kit-SHT30
Description
The PM2.5 Kit is an environmental temperature, humidity, and air quality detection product. It comes with a built-in SHT20 temperature and humidity sensor and a PMSA003 digital universal particulate matter concentration sensor. It can quickly detect the current environmental temperature and humidity data, and collect and calculate the number of suspended particles of different sizes in a unit volume of air. The simple and reliable design allows for quick deployment of nodes, making it suitable for use in various scenarios such as daily life or industrial environments for environmental data collection, or for providing real-time and accurate concentration data for instruments or environmental improvement equipment related to airborne particulate matter concentration.
Features
- PMSA003 Digital Universal Particulate Matter Concentration Sensor
- Laser scattering principle for precise measurement
- Zero false alarm rate
- Real-time response and supports continuous collection
- Minimum detectable particle size: 0.3μm
- Six-sided shielding for stronger anti-interference performance
- Optional air inlet and outlet directions, wide applicability, no need for additional duct design
- 12mm module size, suitable for portable and wearable devices
- SHT20 Temperature and Humidity Sensor
- Fully calibrated
- Digital output, I2C interface
- Low power consumption
- Excellent stability
- DC 5V power supply
- Compatible with M5Stack expansion stacking system
- M5Core base (Pin out SPI/I2C/Power)
- Universal board
- Type-C USB
Includes
- 1 x Basic
- 1 x Base PM2.5
- 1 x Base
- 1 x USB Type-C cable (1m)
- 2 x M3x16 screws
Specifications
| Specification | Parameter |
|---|---|
| Net Weight | 70g |
| Gross Weight | 135g |
| Product Size | 63 x 52 x 46mm |
| Package Size | 125 x 67 x 23mm |
LEARN AND DOCUMENTS
Customer Reviews
First off just about all of these m5stack units are great little dev kits with enough fit and finish to use in final projects. The PM sensor is well-integrated into the back making this a really compact. However the temperature sensor is practically worthless. I am assuming the SHT20 is genuine but the design of this puts the sensor way too close to the heat of the microcontroller/backlight/etc. Both units I purchased read about 7-8 degrees C over ambient air (and the humidity is similarly reading about 10% low). I can't help but thinking they would have been better off with their other temp sensor stand as a base rather than trying to integrate the temp sensor so tightly next to the PM sensor. However, this is not the end of the world--they appear to be relatively consistent in their error so you can do some calibration in your software or you can use a separate sensor off the I2C port for your own temperature/humidity. I also added a VOC sensor making it a great full-featured DIY IAQ solution. PM sensor appears to report reasonable/consistent results. Aside from the temp/humidity sensor issues, the only other thing I'd have liked to see is more GPIO broken out somewhere, since the standard m5stack backplate is replaced by the PM sensor you only get the I2C port and the small handful of pins on the bottom for the stand. Great little kit though, if you want a decent looking DIY PM sensor with a screen that you don't have to make your own enclosure for, get it!
PM2.5 Air Quality Kit (PMSA003 + SHT20)
PM2.5 Air Quality Kit (PMSA003 + SHT20)
PM2.5 Air Quality Kit (PMSA003 + SHT20)
The M5stack with pm2.5 sensor makes the job out of the box. Software support is based on github and the environment visual studio code (not arduino devkit). Information on building such programming environment is too limited. Thus there is no out of the box, easy way to compile and modify the script for example to build a small api.