In this project, we will create a breathalyzer using alcohol sensor MQ3 also knows as GAS sensor. Previously I made many Arduino projects on Home Automation and security and this project are totally different and its looks funny but interesting, I hope you will enjoy.
What is Alcohol Sensor MQ3?
First of all before creating any project you have to know about what you creating and what are you using. The main question is what is Alcohol Sensor MQ3? This alcohol sensor basically detects alcohol from Air when you breathe near to sensor head it will detect you are drunk OR not and its give output as the analog to the controller, we used Arduino in this project so it will give an analog signal to Arduino and Arduino give us to the value of sensitivity to alcohol.
How can we know that we had a bear or sober 😀 for this purpose I will attack an OLED display screen to Arduino.
This is very interesting project and looks funny 😛
Required Hardware for Alcohol sensor MQ3 project is:
- Arduino UNO Mega(OR your choice)
- Alcohol Sensor MQ3
- 0.96′ I2C OLED Screen
- Some Jumper wires
- 5v adapter
How to create Alcohol sensor MQ3 Breathalyzer
Now in this section, we will discuss making of Breathalyzer with the MQ3 sensor module. First of all, wire up all hardware together as above in schematic. After that just upload the code to your Arduino board with IDE tool. keep in mind must use the latest version of IDE tool . I will create this project easy as I can for you because there are many are newbies lets start…!!
- Download latest version of Arduino IDE tool from here
- Go to Board manager and select your board (like mine is Arduino mega 2560)
- Select your right Port which is connected to your Arduino
- Verify the code
- Upload (code you have done it…!!) 🙂
Download source code for Alcohol sensor MQ3 Arduino project from here.Download
You can buy all the stuff from Online stores easily and at very cheap price.
Note: The Alcohol sensor has high sensitivity and real time response but it may sometimes not much accurate.
Warning: Don’t drink alcohol because its injurious for health and don’t drive while drunk you can buy a drink again but not life.
If you like this project just drop your comment and share with others , If you have any question let me know. 🙂