PM Sensor SDS011 High Precision Laser PM2.5 PM10 Air Quality Detection Dust Sensor ตรวจวัดฝุ่น

concentration between 0.3 to 10um in the air. It with digital output and built-in fan is stable and reliable. Accurate and Reliable: detection, stable, good consistency;
Quick response: response time is less than 10 seconds when the scene changes.
Easy integration: UART output (or IO output can be customized),
fan built-in;
High resolution: resolution of 0.3ug/m3.
Scope of application:PM2.5 Detector;Purifier;Air Exchangers;Filtering system.
Working principle:Using scattering principle:Light scattering can be induced when particles go through the detecting area;
The scattered light is transformed into electrical signals and these signals will be amplified and processed

Features: Interface specification:

1:CTL:Control pin, reserved
2:1um:>0.3 Micron particle concentration, PWM Output
3:5V:5V power input
4:25um:>2.5 Micron particle concentration, PWM Output
5:GND:GND
6:R:Serial port receiver
RX 7:T:Serial port transmission
TXPS: The pitch of Interface is 2.54mm

Communication protocol:

Serial communication protocol: 9600 8N1. (Rate of 9600, data bits 8, parity none, stop bits 1)

Serial report communication cycle: 1+0.5 seconds

Data frame (10 bytes): message header + order+ data(6 bytes) + checksum + message trailer

The number of bytes:Name:Content

0:message header:AA

1:order:C0

2:data 1:PM2.5 low byte

3:data 2:PM2.5 high byte

4:data 3:PM10 low byte

5:data 4:PM10 high byte

6:data 5:0(reserved)

7:data 6:0(reserved)

8:checksum:checksum

9:message trailer:AB

Checksum: data 1 + data 2 + ...+ data 6

PM2.5 data content: PM2.5 (ug/m3) = ((PM2.5 high byte*256 ) + PM2.5 low byte)/10

PM10 data content: PM10 (ug/m3) = ((PM10 high byte*256 ) + PM10 low byte)/10