The main aim of this project is to develop a wireless black box using ARDUINO NANO microcontroller. ADXL335 MEMS is a Micro electro mechanical sensor which is a highly sensitive sensor and capable of detecting the tilt (accident).  The system consists of cooperative components of a MEMS accelerometer sensor, DHT11 sensor, Arduino NANO microcontroller unit, GPS device and GSM module.  In the event of accident or high temperature and humidity this wireless device will send mobile phone short massage indicating the position of vehicle by GPS system to family member/emergency medical service (EMS). And this system gives the audible alerts in abnormal conditions of vehicle. The status of the project will display on LCD. GPS is the acronym for global positioning system which receives the information from the satellite anywhere in the world and provides the same for controller. The GPS provides us the data like location, time, and speed.GPS module is used to track the vehicle location in the form of latitude and longitude values. The system is compact and easy to install under rider seat.  An accelerometer can be used in a car alarm application. Dangerous driving can be detected with an accelerometer. It can be used as a crash recorder of the vehicle movements before, during and after a crash. With signals from an accelerometer, a severe accident can be recognized and give the audible alerts through buzzer. Here DHT11 sensor can detects both temperature and humidity. The status of the project will display on LCD.   This project makes use of Arduino Nano microcontroller; it acts as heart of the project. This onboard computer can efficiently communicate with the output and input modules which are being used. The controller is provided with some internal memory to hold the code. This memory is used to dump some set of assembly instructions into the controller. And the functioning of the controller is dependent on these assembly instructions.            

Features:

• MEMS based user-friendly interfacing
• Location based alerts in the for SMS messages sing GSM
• Accident detection suing MEMS.
• Audible and visual alerts using LCD and buzzer.
• DHT11 based temperature and humidity detection.
• Implementation of real time embedded system which involves hardware and software interaction.

           

The major building blocks of this project are:

1. Regulated power supply with voltage regulator.
2. MEMS accelerometer sensor.
3. GPS module.
4. GSM.
5. LCD display.
6. Buzzer.
7. Arduino Nano Microcontroller.
8. DHT11 Sensor.

       

Software’s used:  

1. Arduino ide studio compiler for dumping code into Microcontroller.
2. Express SCH for Circuit design.
3. Embedded C language.

             

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