Mq 135 Gas Sensor Arduino Code

The mq 135 gas sensor module has four pins standard male headers as shown above.

Mq 135 gas sensor arduino code.

The alcohol gas sensor we used is the mq 135 sensor. What is mq 135 gas sensor and how does it work. The grove gas sensor mq2 module is useful for gas leakage detection home and industry. Simply we have interfaced mq 135 gas sensor module with arduino and 16 2 lcd module for display.

Mq 135 gas sensor is a hazardous gas detection apparatus for the family the environment suitable for ammonia aromatic compounds sulfur benzene vapor smoke and other gases harmful gas detection gas sensitive element test concentration. Arduino and mq2 gas sensor. Smoke detectors are very useful in detecting smoke or fire in. Pin wiring to arduino uno.

This is a sensor that is not only sensitive to alcohol particularly ethanol which is the type of alcohol that is found in wine beer and liquor. The mq 2 sensor has 4 pins. Since ao is a varying voltage this pin should be connected to one analog input of a microcontroller the do pin is an open collector digital output but with a pull up resistor onboard that becomes low when the detection level exceeds a predefined level. The output can be an analog signal a0 that can be read with an analog input of the arduino or a digital output d0 that can be read with a digital input of the arduino.

Air quality sensor is for detecting a wide. First i started with a very simple analog read to check the values in my computer hobby room with a co2 ppm around 650. This sensing element is subjected to current through connecting leads. The smoke sensor we used is the mq 135 sensor.

The gas sensor module consists of a steel exoskeleton under which a sensing element is housed. Measure co2 with mq 135 and arduino. Simply we have interfaced mq 135 gas sensor module with arduino and 16 2 lcd module for display. It is suitable for detecting h2 lpg ch4 and co.

The air quality information is readable via the ao pin.