₹17,500.00
Breathalyzer circuit using 8051 project enables you to check the blood alcohol content from the breath of a person which is then displayed to the LCD.
Project Information:-
This article is about a breathalyzer circuit using 8051 microcontroller which outputs the blood alcohol content (BAC) from the breath. The BAC is displayed in percentage on a 3 digit seven segment display. The microcontroller used if AT89S51 which belongs to the 8051 family and the alcohol sensor is MQ135 gas sensor from Futurelec.
Language used:- EMBEDDED C
List of Components:-
Alcohol sensor (MQ135)
IC (ADC 0804)
Microcontroller (AT89S51)
7 segment display
Transistor (2N2222)
Switch
Capacitor (150pF)
Capacitor (22uF/10V)
Capacitor (10uF/10V)
Resistors:
100 ohm
10k
22k
8.2k
330 ohm
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