Use an MQ-3 alcohol sensor as a breathalyzer and display the user's BAC.
It is a tool to monitor the presence of acetone in our breath. It uses gas sensor MQ-135, 1.3inch OLED display, DHT22 & Arduino Uno.
Welcome to another Arduino project video! Today we are going to build an Arduino Breathalyzer. It is a device that senses alcohol in the air
A complete project, from the design to the electric scheme, from the PCB to the 3D-printed container.
This project will detect any abnormality in the incubator’s conditions, such as low oxygen levels, high temperature, or irregular heartbeat.
This project demonstrates how to implement a low-cost breathalyzer with a GreenPAK™ SLG46140V