• ADITI BALRUSHNA PADAYR
• DIPALI PRABHAKAR JADHAV
• PRITI PRAMOD PASHTE
• SHWETA SUNIL LAGADE
• Prof. S. K. SRIVASTAVA

The main aim of this project is to develop a system that can detect the alcohol content in the air exhaled by the driver and automatically turn off the car if alcohol percentage exceeds the limit. In this project we are using 8051 family (89s52) microcontroller. the alcohol sensor used in this project is mq-3 which to detect the present of alcohol content in human breath. Alcohol sensor gives out analog data that can’t be analyzed by 8051 micro controllers. The data received from alcohol sensor is converted into digital form with the help of digital converter (analog to digital converter). after that the data is stored in micro controller and then compared to the threshold values. if the value is beyond its set limits, then with the help of program controller takes appropriate action which controls the ignition system. here we used electro mechanical relays to control the ignition system. In this project by controlling the ignition system, we can prevent accidents that occur due to drink and drive.

IOT ,Internet of things, sensors, ignition, RF transmitter and receiver

"MICROCONTROLLER BASED ACCIDENT PREVENTION SYSTEM WITH IOT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 2, page no.626-630, February-2020, Available :http://www.jetir.org/papers/JETIR2002301.pdf

"MICROCONTROLLER BASED ACCIDENT PREVENTION SYSTEM WITH IOT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 2, page no. pp626-630, February-2020, Available at : http://www.jetir.org/papers/JETIR2002301.pdf