AGS10 Hazardous Gas Sensor

  The AGS10 is a MEMS TVOC sensor that uses a digital signal output. It is equipped with a dedicated digital module acquisition technology and gas sensing technology, ensuring the product's high reliability and excellent long-term stability. Additionally, it features low power consumption, high sensitivity, fast response, low cost, and simple driving circuitry.

Module Source

Purchase Link: https://item.taobao.com/item.htm?spm=a21n57.1.0.0.148e523cqcVeUq&id=709434114260&ns=1&abbucket=8#detail
Resource Download：

INFO

PDF

Specifications

Operating Voltage: 3.0-6.0 V
Typical Power: 75mW
Sampling Period: ≥2s
Interface Rate: I2C Slave Mode（≤15kHz）
Preheating Time: ≥120s
Operating Temperature: 0～50℃
Operating Humidity: 0～95%RH
Lifetime: >5 years (at 25℃ in clean air)
Output Unit: ppb
Measurement Range:0～99999 ppb
Typical Accuracy (25℃/50%RH): 25% of reading
Standard Test Gas: Ethanol
Module Size: 15*10.6mm

Hardware Connection

  AGS10     -> development board pin
   VCC      -> 3.3V
   GND      -> GND
   SDA      -> A4 (SDA)
   SCL      -> A5 (SCL)

Usage Method

/******************************************************************************
  * Test Hardware: LCSC ColorEasyDuino Development Board
  * Version Number: V1.0
  * Modified By: www.lckfb.com
  * Modification Date: April 11, 2024
  * Function Overview:
  *****************************************************************************
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******************************************************************************/
#include <Wire.h>

#define DEVICE_ADDRESS  0X34>>1
#define DATA_ADDRESS    0X00
void setup() {
  // 初始化串行通信
  Serial.begin(9600);
  // 初始化I2C通信
  Wire.begin();
}

void loop() {
  // 发起I2C读取传感器数据的请求
  Wire.beginTransmission(DEVICE_ADDRESS); // AGS01DB的I2C地址，可能需要根据实际情况调整
  Wire.write(byte(DATA_ADDRESS));
  if (Wire.endTransmission() != 0) Serial.println("No sensor was detected"); // 检查ACK，非0值表示出错
  Wire.endTransmission(); // 结束传输，准备读取数据

  // 读取数据
  Wire.requestFrom(DEVICE_ADDRESS, 5); // 请求2字节长度的数据

  if(Wire.available() == 5) {
    byte data1 = Wire.read(); // 读取第一个字节
    byte data2 = Wire.read(); // 读取第二个字节
    byte data3 = Wire.read(); // 读取第三个字节
    byte data4 = Wire.read(); // 读取第四个字节
    byte data5 = Wire.read(); // 读取第五个字节

    // 处理和组合数据
    int gasConcentration = (data2 << 16) | (data3<<8) | data4;
    // 打印结果
    Serial.print("TVOC气体浓度: ");
    Serial.println(gasConcentration);
  }
  delay(1000); // 稍作延时再次读取
}

Usage Testing