Feature
This sensor uses the principle of laser light scattering. That is, the laser illuminates the suspended particles in the air to generate scattering, and at the same time, the scattered light is collected at a certain angle to obtain a curve of the scattered light intensity with time. Furthermore, the microprocessor uses an algorithm based on the MIE theory to obtain the equivalent particle size of the particles and the number of particles of different particle sizes per unit volume.
Pin Description
VCC:Power +5V
GND:Power supply-
SET:Set the pin/TTL level @3.3V high or floating to normal operation, low level to sleep state
RXD:Serial receiver pin / TTL Level @3.3V
TXD:Serial transmit pin / TTL level @3.3V
RESET:Module reset signal / TTL level @3.3V, low reset
NC
Package includes
1 x PM2.5 Sensor
1 x Cable
Additional information
| Weight | 0.045 kg |
|---|
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