JOY-IT DEBO GAS MQ7 Instructions

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

ANALOG CARBON MONOXIDE SENSOR

SEN-MQ7

1. 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.

Please note that the sensor requires a warm-up phase to pro­vide accurate readings.

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

2. COMMISSIONING WITH THE RASPBERRY PI

Raspberry Pi ADC MQ7 V. Translator

GND (Pin 6, 14, 9...) GND GND (Pin 1) GND

5V (Pin 2, 4) VDD VCC (Pin2) 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:

This carbon monoxide

sensor is an analog sensor.
Since the Raspberry Pi has

no analog inputs, you
have to use an analog-to­digital converter. You will
also need a 3V to 5V volt­age translator.

In this example the ADC
COM-KY053 and the Com-

KY051 voltage translator

from Joy-it is used.