SGP30 Gas Sensor

  The SGP30 is a metal-oxide gas sensor with multiple sensing elements on a single chip. It integrates four gas sensing elements and provides fully calibrated air quality output signals. In addition, the SGP30 is easy to integrate, allowing the metal-oxide gas sensor to be embedded into mobile devices, opening new possibilities for environmental monitoring in smart homes, home appliances, and IoT applications. It is primarily used for formaldehyde detection!

Module Source

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Password: 1vds

Specifications

Operating Voltage:3.3V
Operating Current:40mA
Output Method: IIC
Pin Count: 4 Pins

Hardware Interface

• The VCC pin of the SGP30 is connected to the 3.3V of the development board.
• GND is connected to the GND pin of the development board.
• SDA (Serial Data Line) is connected to the A4 (SDA) pin of the development board.
• SCL (Serial Clock Line) is connected to the A5 (SCL) pin of the development board.

Usage Method

To use the SGP30, you need to install an Arduino library that is compatible with the sensor. Adafruit provides a library for the SGP30, which can be installed via the Arduino IDE’s Library Manager. In the IDE, go to “Tools” > “Manage Libraries…,” then search for “Adafruit SGP30” and install it.

Enter the code:

/******************************************************************************
  * Test Hardware: LCSC ColorEasyDuino Development Board
  * Version Number: V1.0
  * Modified By: www.lckfb.com
  * Modification Date: April 10, 2024
  * Function Overview:
  *****************************************************************************
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#include "Adafruit_SGP30.h"

Adafruit_SGP30 sgp;

void setup() {
  Serial.begin(9600);

  if (!sgp.begin()){
    Serial.println("Sensor not found :(");
    while (1);
  }
  Serial.print("Found SGP30 serial #");
  Serial.print(sgp.serialnumber[], HEX);
  Serial.print(sgp.serialnumber[], HEX);
  Serial.println(sgp.serialnumber[], HEX);
}

void loop() {
  if (! sgp.IAQmeasure()) {
    Serial.println("Measurement failed");
    return;
  }
  Serial.print("TVOC ");
  Serial.print(sgp.TVOC);
  Serial.print(" ppb\t");
  Serial.print("eCO2 ");
  Serial.println(sgp.eCO2);

  delay(1000);
}

Usage Testing

After programming and uploading the code to your board, open the “Serial Monitor” in the Arduino IDE and you will see the TVOC and eCO2 readings. The sensors will take some time to stabilize and may require some calibration to get accurate readings.