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1. 1000KV TECHNOLOGIES 9030 844 866 / 9030 844 877
ECE / EEE / EIE / MECHAICAL / MECHATRANIC MAIN & MINI PROJECTS
1000KV TECHNOLOGIES
FLAT NO: #A2 ; Eureka Court Complex ; OPP Line of R.S Brothers ; near Image Hosp ; Ameerpet
9030 844 866 / 9030 844 877
Sensitive Alcohol Sensor with Auto Car Ignition Disables Function
To Avoid Drunk And Drive
The main purpose behind this project is “Drunk driving detection”. Now a days, many
accidents are happening because of the alcohol consumption of the driver or the person who is
driving the vehicle.
Thus Drunk driving is a major reason of accidents in almost all countries all over the
world. Alcohol Detector in Car project is designed for the safety of the people seating inside the
car. This project should be fitted / installed inside the vehicle.
Description in detail:
The main unit of this project is an “Alcohol sensor”. If the person inside car has
consumed alcohol then it is detected by the sensor. Sensor gives this signal to a comparator IC.
The output of comparator is connected to the microcontroller. Microcontroller is the heart of this
project. It is the CPU of the complete circuit. Microcontroller gives high pulse to the relay circuit
and the relay is turned on. At the same time a relay is turned off. Due to this the ignition of the
car is deactivated.
Sensitive material of MQ-3 gas sensor is SnO2, which with lower conductivity in clean
air. When the target alcohol gas exist, The sensor’s conductivity is more higher along with the
gas concentration rising. Please use simple electro circuit, Convert change of conductivity to
correspond output signal of gas concentration.

2. 1000KV TECHNOLOGIES 9030 844 866 / 9030 844 877
ECE / EEE / EIE / MECHAICAL / MECHATRANIC MAIN & MINI PROJECTS
1000KV TECHNOLOGIES
FLAT NO: #A2 ; Eureka Court Complex ; OPP Line of R.S Brothers ; near Image Hosp ; Ameerpet
9030 844 866 / 9030 844 877
Block Diagram:

3. 1000KV TECHNOLOGIES 9030 844 866 / 9030 844 877
ECE / EEE / EIE / MECHAICAL / MECHATRANIC MAIN & MINI PROJECTS
1000KV TECHNOLOGIES
FLAT NO: #A2 ; Eureka Court Complex ; OPP Line of R.S Brothers ; near Image Hosp ; Ameerpet
9030 844 866 / 9030 844 877
Block Diagram will consist the following modules
This project mainly consists of following blocks:.
1) Microcontroller.
2) Relay
3) Alcohol sensor
4) Motor.
5) Power Supply.
6) driver circuit
Project covering topic
1) Embedded C programming
2) Working of sensors
3) Interfacing of microcontroller
4) Working of HBRIDGE / L293D IC
5) Working with embedded c compilation IDE
6) Working of motors
7) Delay function working
8) Relay operation
9) alcohol sensor working principle
10) How to convert 230v to 5v dc power supply

4. 1000KV TECHNOLOGIES 9030 844 866 / 9030 844 877
ECE / EEE / EIE / MECHAICAL / MECHATRANIC MAIN & MINI PROJECTS
1000KV TECHNOLOGIES
FLAT NO: #A2 ; Eureka Court Complex ; OPP Line of R.S Brothers ; near Image Hosp ; Ameerpet
9030 844 866 / 9030 844 877
Software / IDE Using:
 IDE AVR-v4 Compiler for Embedded C Programming.
 Prog ISP-7 programmer for dumping code into Microcontroller.
Proteus-7 for Hardware simulation / circuit designing
Applications and Advantages:
Applications of Alcohol Detector in Car:
1) “Alcohol Detector project” can be used in the various vehicles for detecting whether
the driver has consumed alcohol or not.
2) This project can also be used in various companies or organization to detect alcohol
consumption of employees.
Advantages of Alcohol Detector project:
1) “Alcohol Detection System in Cars” provides an automatic safety system for cars and
other vehicles as well.
Future Development:
1) We can implement GSM technology to inform the relatives or owners of the vehicle
about the alcohol consumption.
2) We can implement GPS technology to find out the location of the vehicle.
What microcontroller using? And why?
Ans: We are using AURDINO , (ATMEGA family, AVR)
 Because “Arduino is an open-source
 Electronics prototyping platform based on flexible, easy-to-use hardware and software.
 It’s intended for artists, designers, hobbyists, and anyone interested in creating
interactive objects or environments.
 “Arduino can sense the environment by receiving input from a variety of sensors and can
affect its surroundings by controlling lights, motors, and other actuators.

5. 1000KV TECHNOLOGIES 9030 844 866 / 9030 844 877
ECE / EEE / EIE / MECHAICAL / MECHATRANIC MAIN & MINI PROJECTS
1000KV TECHNOLOGIES
FLAT NO: #A2 ; Eureka Court Complex ; OPP Line of R.S Brothers ; near Image Hosp ; Ameerpet
9030 844 866 / 9030 844 877
Student Support:
 Working KIT / Project
 Documentation
 PPT
Easy to use, Self-explanatory kit.
All - inclusive solution kit.
Extensive audio-visuals available.
Branding output
Call/mail for Tech Support from 10 am - 7 pm.