Alcohol Sensing Instrument Embedded Projects Ideas-Kitsguru

Description

The alcohol sensing instrument can be an automatic detection system, control unit, and many others. Automation is basically a system design that adds on to human comfort, provides the outputs without human interaction, and makes the system user-friendly with auto control schemes. Here is the kit of an alcohol-sensing instrument. It is based on the alcohol sensor MQ3 which detects the alcohol and gives the analog output.

In the kit alcohol sensing instrument, the analog output is displayed in the form of a percentage on the LCD. If the alcohol is detected above a certain threshold level an alarm is generated. Since the process of alarm generation is automatic hence it can be planted anywhere and tested.

The main aim of this kit alcohol sensing instrument circuit is basically the alcohol sensor generates analog output, as the microcontroller is capable of sensing analog voltage, we can easily interface this analog output with the microcontroller. There is an LCD interfaced with the controller, hence it displays the percentage of alcohol detected. As the level of percentage exceeds a limit it generates a trigger to the buzzer and the door will not open. The door is connected to the microcontroller with the help of motor driver IC L293D