Make your own Alcohol detector using Arduino We are giving Tutorial with all the steps given with code, circuit and instructions for mq3 with Arduino

Mar 27, 2018 · 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. In this Arduino Alcohol Detector Shield we have used a MQ3 sensor to detect present alcohol level in the breath.

Apr 5, 2023 · Build an alcohol detector with an MQ3 Sensor & Arduino using this step-by-step guide. Learn to wire the circuit, program the board, and test.

May 9, 2022 · Here we discussed about MQ3 Alcohol Sensor's Pinout, Working Principle, Circuit Diagram, etc. Also you will get to know how to use MQ3 sensor with Arduino to detect alcohol

Oct 9, 2023 · Explore the step-by-step guide to build an advanced alcohol breath analyzer using Arduino. You can also find the circuit and source code here.

Mar 13, 2021 · A small demonstration of a simple Alcohol detector using Arduino and MQ3 sensor. It can be use in variety of alcohol detection applications

Nov 26, 2023 · To interface the MQ3 Alcohol Sensor with Arduino, follow the above circuit diagram and connect the circuit accordingly. After that, write the above-described code in your Arduino IDE and upload that code in Arduino UNO.

Aug 18, 2018 · Circuit Diagram for this Arduino Alcohol Sensor Project is given above. We have a comparator circuit for comparing output voltage of Alcohol Sensor with preset voltage (output connected at pin D7).

Apr 22, 2022 · In this project, the Arduino UNO is used to control the MQ3 gas sensor and the OLED display module. The sensor is used to detect the presence of alcohol in the air and the OLED display is used to display the alcohol level in real-time.

Jan 2, 2024 · The simple alcohol detector circuit discussed here will accurately sense the emanation of alcohol gas from a selected source, such as from the mouth of a drunkard, when used as a breathalyzer.