![]() ![]() ![]() An LED is connected to indicate whenever methane gas is detected in a particular area.Connect the analog and digital pins of the mentioned methane sensor to the analog pin and digital pin of the Arduino UNO for transferring data readings respectively.Connect the power supply pins of the MQ-4 methane sensor to the GND pin and the 5 Volts pin of the Arduino UNO.This section will guide through the interfacing of the Arduino UNO and MQ-4 Methane sensor. This digital pin can also be used for different activities being commanded by a microcontroller. When methane gas is detected, the digital pin goes HIGH and the Digital output inbuilt led glows up. Similarly, the same goes for the digital output pin of the MQ4 methane sensor. Based on this measurement, we can take proper actions such as alarm triggering, etc. Microcontroller reads the analog output signal of the methane gas sensor and performs signal conditioning to convert the measured analog voltage into Methane concentration in air. Nowadays most microcontrollers come with a built-in ADC peripheral which can be used to read the analog output of such sensors such as MQ4. We can measure the analog output of a sensor with an ADC microcontroller. The analog pin of the sensor then generates an analog signal proportional to the amount of CH4 in the air. ![]() The MQ-4 works by sensing the methane concentration in the air.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |