Hướng dẫn sử dụng module cảm biến phát hiện nồng độ cồn trong không khí MQ3

Give your next Arduino project a nose for alcohol with the MQ3 alcohol sensor module. This sensor detects the presence and the concentration of alcohol present in the air. So, if you are planning to make your own breathalyzer to measure the amount of alcohol in the human body, the MQ3 alcohol sensor module is a great option.