DFRobot Gravity: Analog CO2 Gas Sensor for Arduino | CO2 Gas Detector

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note that only one file can be open at a time, 136 // so you have to close this one before opening another.

Using the USB cable type A – B male/male, connect one end into your PC and the other into the Arduino Uno board… you’ll know which end goes where, trust me! Finally, you must tell the software which COM port on your computer the Arduino Uno board is connected to. It has characteristics such as high sensitivity, high resolution, low power consumption, fast response, anti-water vapour interference, no poisoning, high stability and long life. Then open your serial monitor and wait for some time (preheat process), then you'll see the final data. Since i never worked with similar sensors, i dont know if is even possible to do measurements in the outdoor (not placing the sensor inside the sewage drain), in a relative fast way (ie: not leaving the sensor for hours in the location).Sensor calibration is recommended after sensor assembly and when widely differing measurements are observed outdoors in the 400 ppm range. Make sure all your jumper cables are fully connected on both the EZO-CO2 Sensor and on the Arduino Uno board before moving on to the next step. You also have an alternate option to simply detect whether the Co2 levels are above the preset limit.

After installing the libraries to Arduino IDE, start the code by including the needed libraries files. CO2 is produced indoors when people breathe, and in an enclosed space the levels can often rise above 1000ppm and make you feel drowsy, sleepy or even lead to headaches. In this section, we will understand the features, specifications, and connection options available on the CO2 sensor.After fulfilling these conditions, you must press the S1-A1 button in the shield version, or the "switch" in the version by parts, for more than 5 seconds, and the "cal-" message will appear on the screen, counting down 5 minutes for the Sensirion and Cubic and 20 minutes for the Winsen. c. Cubic CM1106, is the last option because the distribution in China is for second-hand units and sometimes not available.