Joy-it SEN-MQ4 Manual de Usario

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Pascalstr. 8 47506 Neukirchen Vluyn-
ANAL
ANAL
ANAL
ANALANALOG NA
OG NA
OG NA
OG NAOG NATURAL G
TURAL G
TURAL G
TURAL GTURAL GAS AND METH
AS AND METH
AS AND METH
AS AND METHAS AND METHANE
ANE
ANE
ANE ANE
SENSOR
SENSOR
SENSOR
SENSORSENSOR
SEN MQ4-
1. GENERAL INFORMATION
1. GENERAL INFORMATION
1. GENERAL INFORMATION
1. GENERAL INFORMATION1. GENERAL INFORMATION
Dear costumer,
thank you very much for choosing our product.
In following, we will introduce you to what to observe while starting up
and using this product.
Should you encounter any unexpected problems during use, please do
not hesitate to contact us.
Ple
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www.joy it.net-
Pascalstr. 8 47506 Neukirchen Vluyn-
2. CALCULATION OF THE SENSOR VALUES
2. CALCULATION OF THE SENSOR VALUES
2. CALCULATION OF THE SENSOR VALUES
2. CALCULATION OF THE SENSOR VALUES2. CALCULATION OF THE SENSOR VALUES
This shows the typical sensitivity characteristics of the MQ-4. Rs means re-
sistance of the sensor in dierent gases, Ro means resistance of sensor in
1000ppm Methane
Correlation between sensor resistance and the ambient temperature and
air humidity
The resistance of the sensor can be calculated with the following formula:
Rs=(Vc/VRL 1)×RL -
VC= Supply voltage; VRL= voltage analog pin;
Pascalstr. 8 47506 Neukirchen Vluyn-
3. COMMISSIONING WITH THE RASPBERRY
3. COMMISSIONING WITH THE RASPBERRY
3. COMMISSIONING WITH THE RASPBERRY
3. COMMISSIONING WITH THE RASPBERRY3. COMMISSIONING WITH THE RASPBERRY PI
PI
PI
PI PI
Raspberry Pi
Raspberry Pi
Raspberry Pi
Raspberry PiRaspberry Pi ADC
ADC
ADC
ADCADC MQ4
MQ4
MQ4
MQ4MQ4
V. Translator
V. Translator
V. Translator
V. TranslatorV. Translator
GND (Pin 6, 14, 9...) GND (Pin 1) GND GND
5V (Pin 2, 4) VCC (Pin2) VDD VCCb
3V (Pin 1, 17) VCCa - -
BCM17 (Pin 11) - - A3
- - B3 D0 (Pin 3)
- A0 Signal (Pin 4)
SCL (Pin 5) - - A2
SDA (Pin 3) - - A1
- - B2 SCL
- - B1 SDA
Wiring:
Wiring:
Wiring:
Wiring:Wiring:
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Especificaciones del producto

Marca: Joy-it
Categoría: No categorizado
Modelo: SEN-MQ4

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