The AGS10 is a compact MEMS-based gas sensor that measures Total Volatile Organic Compounds (TVOCs) in the air. It detects low concentrations of harmful gases such as formaldehyde, ethanol, toluene, and other VOCs, providing output in parts per billion (ppb). It's ideal for monitoring indoor air quality in environments like homes, offices, or vehicles.

#include <Wire.h>

#define AGS10_ADDR 0x1A

void setup() {
  Serial.begin(115200);
  Wire.begin(2, 0);  
}

void loop() {
  Wire.beginTransmission(AGS10_ADDR);
  Wire.write(0x00);  
  Wire.endTransmission(false);

  if (Wire.requestFrom(AGS10_ADDR, 4) == 4) {
    Wire.read();            
    Wire.read();            
    uint16_t tvoc = Wire.read() << 8 | Wire.read();  
    Serial.println(tvoc);   
  }

  delay(2000);
}