Geekcreit Nova PM Sensor SDS011 High Precision Laser PM2.5 Air Quality Detection Sensor Module Tester
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SKU: U2I-BG-1144246
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Description
Overview:
The SDS011 using principle of laser scattering,can get the particle concentration between 0.3 to 10um in the air. It with digital output and built-in fan is stable and reliable.
Characteristics:
1. Accurate and Reliable: laser detection, stable, good consistency; 2. Quick response: response time is less than 10 seconds when the scene changes; 3. Easy integration: UART output (or IO output can be customized), fan built-in; 4. High resolution: resolution of 0.3ug/m3.
Scope of application:
PM2.5 Detector Purifier Air Exchangers Filtering system
Working principle:
Using laser 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. The number and diameter of particles can be obtained by analysis because the signal waveform has certain relations with the particles diameter.
Technical Parameters:
No.
Item
Parameter
1
Measuring output
PM2.5,PM10
2
Range
0.0-999.9 ug/m3
3
Power supply voltage
5V
4
Maximum working current
100mA
5
Sleep current
2 mA
6
Operating temperature range
-20-50℃
7
Response time
1s
8
Serial data output frequency
1 time/s
9
Particle diameter resolution
Less than 0.3um
10
Relative error
10%
11
Product size
71x70x23mm
Interface specification:
Pin
Name
explain
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 TX
PS: 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
Package included:
1 x Nova PM Sensor SDS011 High Precision Laser PM2.5 Air Quality Detection Sensor Module
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