Alcohol detection and engine locking system using Arduino Uno and MQ3 sensor.
6:44
YouTubeHike Tech
Alcohol detection and engine locking system using Arduino Uno and MQ3 sensor.
Hello friends, in this tutorial I will show you how to make alcohol detection and engine locking system using Arduino uno. Components used in this tutorial: • Arduino Uno • MQ3 alcohol sensor • 5v relay • BC547 transistor • 220ohm ressistors • 9v batteries and caps • Led • Buzzer • Mini breadboard Required tools: • Glue gun ...
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