Alcohol Sensor Arduino Code

And the led is an output will serves an indicator if the sensor has detected alcohol.

Alcohol sensor arduino code.

Here simple arduino alcohol sensor code is written to interface mq 3 gas sensor alcohol with arduino board in this case we used arduino uno board. The next block of code reads the sensor pin aout and stores the value in the integer value. If the grove lcd rgb backlight option is available in the examples folder then you are good to go. This is because the sensor is an input to the arduino for the arduino to read and process the sensor value.

The alcohol gas sensor we used is the mq 135 sensor. Detect the presence of alcohol with arduino. Make sure the alcohol sensor is not connected to the arduino while uploading your code to the. In this tutorial we will learn how to detect smoke and inflammable gases using an mq 2 sensor.

Here i have designed an arduino shield pcb using easyeda online pcb simulator and designer arduino alcohol detector will detect the alcohol level in breath and by using some calculations in code we can calculate the alcohol level in breath or blood and can trigger some alarm. Simply we have interfaced mq 135 gas sensor module with arduino and 16 2 lcd module for display. Paste this arduino code into the arduino ide and upload it to the arduino uno or compatible board. We know mq3 alcohol sensor is suitable for detecting alcohol concentration in air or from the breath this gas sensor interfacing circuit can be used as breathalyzer.