CJMCU-811 CCS811 COV Carbon Monoxide COV Digital Air Quality Gas Sensor

Description

What it is

The CJMCU-811 CCS811 is a digital sensor for carbon dioxide (COV) detection, used to monitor air quality. It is designed to measure COV levels in the surrounding environment, providing useful data for assessing the air we breathe.

Features

• Digital COV (Carbon Dioxide) Sensor
• SKU: ARD0011474
• Price: 17.2 €
• Category: Pre-order

What it is for

The CJMCU-811 CCS811 is ideal for environmental monitoring projects, high COV level alarm systems, and applications requiring air quality measurement. It can be integrated into home devices, offices, or industrial environments to provide real-time air quality information. Compatibility with Arduino and ESP should be verified in the datasheet.

Tutorial: How to Use CJMCU-811 CCS811 COV Carbon Dioxide Sensor

The CJMCU-811 CCS811 digital sensor is a component for monitoring air quality, specifically carbon monoxide (COV). Ideal for environmental monitoring projects and alarm systems.

What you need

• Arduino Uno or compatible
• USB cable
• 3.3V-5V power supply
• Wrench
• Jumpers

Steps

1. Connect VCC to 3.3V-5V of the Arduino
2. Connect GND to GND of the Arduino
3. Connect I2C_SDA to pin A4 of the Arduino
4. Connect I2C_SCL to pin A5 of the Arduino
5. Install the Adafruit_CCS811 library
6. Initialize the sensor in the setup()
7. Read COV values in the loop()
8. Display COV data on the serial monitor

Example code

include <Adafruit_CCS811.h>
Adafruit_CCS811 ccs;
void setup() {
  Serial.begin(9600);
  if (! ccs.begin_I2C()) {
    Serial.println(F("Errore inizializzazione del sensore CCS811"));
    while (1);
  }
}
void loop() {
  if (ccs.available()) {
    ccs.readAlgorithmResults();
    Serial.print("COV:");
    Serial.println(ccs.eCO2);
  }
}

Mini project

Create a home alarm system that sends an email or Telegram message when COV levels exceed a certain limit.

Common mistakes

• I2C connection error
• COV values not updated
• Power supply error
• Library not installed correctly

Recommended accessories

• ESP8266 WiFi Module
• GPRS SMS Module
• 0.96″ I2C OLED Display
• Buzzer

Frequently asked questions

What is the precision of the sensor?
Check the datasheet.

Can it measure other gases?
No, it is specific for COV.

How do you calibrate the sensor?
Check the datasheet.