The dust sensor module DSM501A is used to measure particle density in the air
It is equipped with a sensor that could detect particles with a diameter above 1 µm, for example, cigarette smoke.
The system is supplied with the voltage from 4.5 V to 5.5 V.
It communicates using a PWM signal that works in a room with a cubic area of up to 30 m3.
It can sense tobacco smoke,pollen and house dust
This sensor has a light emitting diode lamp, detector and signal amplifier circuit
It can be used in applications such as the air cleaner or air purifier
Pin Cofiguration
Pin 1 – Control Vout 1 : it sets the sensitivity for the output Vout 1
Pin 2 – Vout 2 output (PWM) : standard output with a constant sensitivity. It shows the density of particles above 1 µm
Pin 3 – Supply voltage: 4.5 V to 5.5 V
Pin 4 – Vout 1 output (PWM) – it is used when necessary is to set the smallest detectable particles. The sensitivity of Vout 1 is 2.5 times smaller than Vout 2
