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Integration of Surilli Basic M0 with MQ7 Gas Sensor

Visualize the changing values of CO in air using MQ7 Gas Sensor and Surilli Basic M0.

BeginnerFull instructions provided15 minutes250
Integration of Surilli Basic M0 with MQ7 Gas Sensor

Things used in this project

Hardware components

Surilli Basic
Surilli Basic
×1
MQ7 Gas Sensor
×1
Jumper wires (generic)
Jumper wires (generic)
×1
Breadboard (generic)
Breadboard (generic)
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

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Schematics

MQ7 with Surilli Basic M0

Code

MQ7_SurilliBasicM0

C/C++
const int AOUTpin = 0; // The AOUT pin of the CO sensor goes into analog pin A0 of Surilli Basic M0
const int DOUTpin = 12; // The DOUT pin of the CO sensor goes into digital pin 12 of Surilli Basic M0

int limit;
int value;

void setup() 
{
   
   SerialUSB.begin(115200); // Sets the baud rate
   pinMode(DOUTpin, INPUT); // Sets the pin as an input to the Surilli Basic M0
   
}

void loop()
{
    
    value= analogRead(AOUTpin); // Reads the analaog value from the CO sensor's AOUT pin
    limit= digitalRead(DOUTpin); // Reads the digital value from the CO sensor's DOUT pin
    SerialUSB.print("CO value: ");
    SerialUSB.println(value); // Prints the CO value
    SerialUSB.print("Limit: ");
    SerialUSB.println(limit); // Prints the limit reached as either LOW or HIGH (above or underneath)
    delay(1000);
    
}

Credits

Surilli

Surilli

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