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

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Since the OLED Display module uses SPI communication, we have established an SPI communication between the OLED module and Arduino Nano. I am building a portable environmental monitoring station using an SPS30 Particulate Sensor and want to add in CO and CO2 sensors. g) Connect the LCD to the sensor bridge using the male to female jumper wires following the wiring diagram. You can also utilise CO2 sensors in horticultural applications and they can be very useful to create the correct growing conditions in mushroom cultivation. Gravity analogue CO2 gas sensor for Arduino (MG-811 sensor) is the first CO2 sensor in the Arduino market.

This Gravity: Analog Infrared CO2 Sensor is able to directly compatible with the DFRobot Arduino IO expansion board thanks to its external DFRobot Gravity interface. Essentially, I understand you want to acquire the data with the arduino and then recalculate the value using the calibration curve coefficient.The Arduino IO expansion shield is the best match for this CO2 senor connecting to your Arduino microcontroller. The CO2 sensors, whose specifications are between 2000 PPM and 10000 PPM, are better suited for indoor air quality monitoring in closed areas such as party halls, schools, and offices. note that only one file can be open at a time, 136 // so you have to close this one before opening another. The circuit is very simple as we are only connecting the MQ-135 Sensor and OLED Display module with Arduino Nano.

Notice:The new version of analog sensor port pin mapping has been changed as the following two features.

Datasheet displays a completely different sensitivity curve than is actually detected by the sensor. I have worked with many different Arduino boards and currently I am exploring, Arduino powered LoRa, Power line communication and IoT.