Liens

Alcohol Gas Sensor - MQ-3

Arduino Breathalyzer: Calibrating the MQ-3 Alcohol Sensor

DIY Portable Breathalyzer, Instructables

DIY Breathalyzer, hackster

SparkFun 7-Segment Serial Display - Red

The Talking Breathalyzer

NeoPixel Stick - 8 x WS2812 5050 RGB LED

Battery Holder - 4xAA to Barrel Jack Connector

Afficheur 7 segments 4 digits + Arduino