Published June 21, 2022 © GPL3+

Arduino Uno and CO Gas Sensor (AGSM)

BeginnerFull instructions provided1 hour332

Things used in this project

Hardware components

AGSM

Arduino UNO

Story

The story

In this project, you will learn how to read sensor values using Arduino Uno.

Things you'll need

1. Arduino uno. AGSM_CO

1 / 2

Schematics and circuit diagrams

AGSM Gas Sensor

AGSM can be easily applied to devices linked to the Internet of Things (IoT) and provides an easy way to monitor sensor values and environmental changes.

AGSM CO

Measurement Range: 0~100ppm

Accuracy: <5% @ Full Range

T90 response time): <150 sec

Operating Input Voltage Range: DC 3.3V ~ 5.0V

Power Consumption: 5.15mA at 3.3VDC(17mW)

Resolution: 0.001ppm

An AGSM sensor must be connected to the ESP32 to send data to ThingSpeak.We will use the AGSM sensor module and Uart communication. To do this, connect the sensor to the main ESP32 RXD (GPIO 17) and TXD (GPIO 16) pins as shown in the following schematic.

Demonstration

Open the serial monitor with a baud rate of 9600. After that, the data value is read.

To better understand how this project works, we recommend that you take a look at the following tutorial.

AGSM( CO Gas )with ESP32 and Thingspeak

ESP32_Thingspeak

#include <SoftwareSerial.h>
 
#define ContinueMode 0
#define PollingMode 1
 
const int rxPin = 2;
const int txPin = 3;
SoftwareSerial Serial1(rxPin, txPin);
 
void setup()
{
  Serial.begin(9600);
  Serial1.begin(9600);//AGSM sensor module connection
  delay(1000);
 
  #if ContinueMode
  Serial.println("Continuous Mode");
  #else if PollingMode
  Serial.println("Polling Mode");
  #endif
  Serial.println("Serial, Conc.(PPB), Temp.(C), Rh(%), Adc.(Counts), Temp.(Counts), Rh(%Counts)");
  #if ContinueMode
  Serial1.write('c');
  Serial1.write('\r');
  #endif
}
 
void loop()
{
  #if PollingMode
    Serial1.write('\r');
    delay(1000);
  #else
    delay(100);
  #endif
   while (Serial1.available()) // read from AGSM port, send to Serial port to interupt continuous output send 'c''/r' without line ending, may have to send more than once.
  {
   int inByte = Serial1.read();
   Serial.write(inByte);   
  }
}

Credits

Allsensing

1 project • 1 follower

Arduino Uno and CO Gas Sensor (AGSM)

Things used in this project

Hardware components

Story

The story

Things you'll need

Schematics and circuit diagrams

AGSM Gas Sensor

Demonstration

Code

ESP32_Thingspeak

Credits

Allsensing

Comments

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Arduino Uno and CO Gas Sensor (AGSM)

Arduino Uno and CO Gas Sensor (AGSM)

Things used in this project

Hardware components

Story

The story

Things you'll need

Schematics and circuit diagrams

AGSM Gas Sensor

Demonstration

Recommend similar projects

Code

ESP32_Thingspeak

Credits

Allsensing

Comments

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