Air quality module, smart air quality testing monitoring module

Product Description

One.Module main part
1. SENSOR: TP – 4 air pollution SENSOR
2. CN1: input/output socket
3. IC: sensor special signal processor

Two. Input/output socket
1. power supply negative input
2. positive input
3. pollution level signal OUT1
4. pollution level signal OUT2

Application scope

1. fresh air machine
2.ventilation, ventilation control
3.air quality monitoring
4.air conditioning automatic ventilation control

Three. Module parameters:
1. input voltage: DC5V + / – 0.1 V
2. preheating current: acuities 230 ma
3. normal working current: acuities 50 ma
4. output port level: TTL level
5. output maximum driving current: ± 15 ma
6. external dimensions: 20 × 17 x 9.3 mm
7. interface pitch: 2.54 mm

Air quality module; smart air quality testing monitoring module For Arduino

Air quality module; smart air quality testing monitoring module For Arduino

The brand DOVELET Model TPM-43B
Output signal digital ambient temperature of 25 (°C)
Type of gas ()

According to the duty cycle of the PWM output PWM signal, determine the level of contamination levels, as shown:

PWM duty cycle
 PWM Frequency (Hz)
 OUT2
 Work status
 Pollution Degree
 
50%
 1
 L
 Preheat
 *
 
0
 0
 L
 Fault
 *
 
5%
 1000
 L
 Normal monitoring
 0
 
10%
 1000
 H
 Normal monitoring
 1
 
50%
 1000
 H
 Normal monitoring
 44
 
100%
 1000
 H
 Normal monitoring
 100 

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