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Product Name: GP2Y1010AU0F dust sensor module
https://www.instructables.com/id/How-to-Interface-With-Optical-Dust-Sensor/
Too cheap to be useful? https://techblog.calvinboey.com/review-of-the-sharp-dust-sensor-gp2y1010au0f/
https://d.lij.uno/misc-dust-detector-with-arduino-serial-comm.html
Power supply voltage: DC5 � 2V
Operating Current: 20mA (peak)
Sensitivity: 0.5V / (0.1mg / m3)
The minimum detection level of particles: 0.8 m
Clean air voltage: 0.9V typ.
Working temperature: -10 ~ 65
Storage temperature: -20 ~ 80
Size: 46mm � 30mm � 17.6mm
Size Weight: 15g
https://github.com/mickey9801/GP2Y1010AU0F
calcVoltage = voMeasured * (this->_VCC / 1024.0); // linear equation taken from http://www.howmuchsnow.com/arduino/airquality/ dustDensity = (0.17 * calcVoltage - 0.1) * 1000.0;
Source code here works much better if you do 10 readings and average them before sending result
https://github.com/arendst/Tasmota/pull/7118
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