Alcohol Sensor Arduino Code

In this project we have designed alcohol level meter using arduino mq 135 alcohol gas sensor for measuring the level of alcohol in humans breathe.

Alcohol sensor arduino code.

Detect the presence of alcohol with arduino. Paste this arduino code into the arduino ide and upload it to the arduino uno or compatible board. In this project i am going to interface an alcohol sensor with arduino. Select file new.

The next block of code reads the sensor pin aout and stores the value in the integer value. And the led is an output will serves an indicator if the sensor has detected alcohol. Simply we have interfaced mq 135 gas sensor module with arduino and 16 2 lcd module for display. In this tutorial we will learn how to detect smoke and inflammable gases using an mq 2 sensor.

Make sure the alcohol sensor is not connected to the arduino while uploading your code to the. This is because the sensor is an input to the arduino for the arduino to read and process the sensor value. 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. 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.