The project aims in designing a robotic vehicle which uses to detect the obstacle while moving and alerts the person through Buzzer. RF Communication ranges in between 30 KHz to 300 GHz. RF communication works by creating electromagnetic waves at a source and being able to pick up those electromagnetic waves at a particular destination. These electromagnetic waves travel through the air at near the speed of light. The wavelength of an electromagnetic signal is inversely proportional to the frequency; the higher the frequency, the shorter the wavelength. The controlling device of the whole system is a Microcontroller. The Microcontroller gets the input from RF receiver which receives the data transmitted by pressing control buttons in RF remote. This data is processed and acts accordingly on Robot DC motor. When the vehicle detects the obstacle using ultrasonic sensor, this data process to the microcontroller and then microcontroller activate the buzzer for alerts. The status of the project will display on LCD. To achieve this task microcontroller loaded program written in embedded C language.

 

The objectives of the project include:

1. Ultrasonic sensor-based obstacle detection.
2. Audible alerts using Buzzer.
3. Visible alerts using LCD display.
4. Wireless controlling of robot.

The project focuses on the following advancements:

1. RF technology.
2. Interfacing RF modules to Microcontroller
3. DC motor working and need for motor driver.
4. Embedded C programming.
5. PCB designing.

The major building blocks of this project are:

• Battery power supply.
• PIC Microcontroller.
• RF transmitter and receiver modules.
• Ultrasonic sensor.
• Buzzer.
• LCD display.
• L293D Motor Driver.
• DC motor.
• Reset Button.
• Crystal oscillator.
• LED indicators.

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

       

     

Regulated Power Supply:    

   

     

 

Block diagram:    

   

   

 

     

 

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