During testing, the alcohol detector detects the presence of alcohol from the blood sample of the drunk driver. Software part will cover coding programming in the ATMEGA microcontroller by using Arduino programming.
The hardware part includes the power supply units, the sensor circuit, the ATMEGA Microcontroller circuit, the LCD screen, motor unit, LED circuits, Buzzer as the alarm circuits, a GSM module, a GPS tracking module and an SD card module. The design of this project includes the development of hardware and software as the device modules. By so doing, reducing the mortality rates due to road accidents. The main objective of this project is to design a system which would prevent drunk drivers to start their cars when they are in drunk condition or to stop their cars in case they were already driving before getting drunk with SMS notification and vehicle tracking on Google Map. Drunken drivers have increased very large and so are the deaths and accidents due to drunken drivers. A research on Blood Alcohol Concentration (BAC) showed that at 0.2mg/l and above, (measured in mg of alcohol per 100ml of blood, or mg/l) judgment, coordination and sensory perception are impaired, reaction time slows, performance in intellectual tests falls, and eyesight are weakened. This system detects the presence of alcohol molecule in the driver blood sample and displays the results by referring to the alcohol concentration detected from the driver’s blood once the driver wants to start driving the vehicle.
This project aims at applying a warning system to prevent accidents which involve vehicles such as cars and trucks when the driver is drunk by using the detection of breath alcohol detector’s concept or, more commonly known as a breathalyzer system that can monitor the person's blood alcohol concentration.
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