Metal Detector Robotic Vehicle.

Metal Detector Robotic Vehicle Operated by Android Application. The project is designed to develop a robotic vehicle that can sense metals ahead of it on its path similar to sensing land mines. The robot is controlled by a remote android application. Remote operation is achieved by any smart-phone/Tablet etc., with Android OS, upon a GUI (Graphical User Interface) based touch screen operation.

It consists of a metal detector circuit interfaced with the control unit that alarms the user behind it about a suspected land mine ahead. An Arduino kit is used for the desired operation. At the transmitting end using an android application, commands are sent to the receiver to control the movement of the robot either to move forward, backward and left or right, etc.

At the receiving end, two motors are interfaced to the microcontroller where they are used for the movement of the vehicle. The android application device transmitter acts as a remote control. While the receiver end Bluetooth device is fed to the microcontroller to drive DC motors via motor driver IC for necessary work. A metal detector circuit is mounted on the robot body and its operation is carried out automatically on sensing any metal underneath. As soon as the robot senses this metal it generates an alarm sound. This is to alert the operator of a possible metalhead on its path.

HARDWARE RESOURCES FOR METAL DETECTOR ROBOTIC VEHICLE

A. Bluetooth module: HC-05 module is an easy to use Bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup. Serial port Bluetooth module is fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps Modulation with complete 2.4GHz radio transceiver and baseband

B. Motor driver: This is a high power motor driver perfect for driving DC Motors and Stepper Motors. It uses the popular L298 motor driver IC and has an onboard 5V regulator which it can supply to an external circuit. It can control up to 4 DC motors, or 2 DC motors.

C. L293D Driver: L293D driver is a dual H-Bridge motor driver integrated circuit (IC). Motor drivers act as current amplifiers since they take a low-current control signal and provide a higher-current signal. This higher current signal is used to drive circuits.

D.Buzzer: buzzer is an electronic device commonly used to produce sound. Lightweight, simple construction and low price make it usable in various applications like car/truck reversing indicator, computer, call bells, etc.
E.voltage regulator: the three-terminal regulators useful in a wide range of applications. It provides thermal overload protection and short circuit protection.

SOFTWARE REQUIREMENT METAL DETECTOR ROBOTIC VEHICLE

Arduino is an open-source platform used for building electronics projects. Arduino consists of both a physical programmable circuit board (often referred to as a microcontroller) and a piece of software, or IDE (Integrated Development Environment) that runs on your computer, used to write and upload computer code to the physical board. The Arduino platform has become quite popular with people just starting out with electronics, and for good reason.

Unlike most previous programmable circuit boards, the Arduino does not need a separate piece of hardware (called a programmer) in order to load new code onto the board –you can simply use a USB cable. Additionally, the Arduino IDE uses a simplified version of C++, making it easier to learn to program. Finally, Arduino provides a standard form factor that breaks out the functions of the micro-controller into a more accessible package.

CONCLUSION;-
Generally, this project becomes a role that can give a contribution for all people with one system which is effective and accomplished to handle stolen, robbery and used for finding something that was lost. This is because this project was built using an Arduino Uno and also having a high performance to protect people’s assets from stolen and helps to find lost objects. Modification in metal detector helps to distinguish different metals like ferrous and non-ferrous (gold, silver, etc.) and also how much distance is that metal from the coil.

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