GitHub - oneguyoneblog/Arduino-breathalyzer-DIY-alcohol-tester-with-MQ-3-gas-sensor-and-OLED-display: This is the code I use for a simple olcohol detector or "breathalYzer", using an Arduino Uno, MQ-3 gas sensor, OLED display and a couple of LEDs.
Arduino Breathalyzer using MQ3 Sensor and OLED Display
Alcoholimeter with MQ3 sensor and arduino nano (Includes printed circuit) - Share Project - PCBWay
Arduino Breathalyzer Project using MQ3 alcohol sensor 0.96' 128x64 OLED display on Arduino Mega - YouTube
Building a Breathalyzer with IOIO for Android | Jaycon Systems
MQ3 Mq-3 Alcohol Ethanol Gas Sensor Module Breathalyzer Works With off