Description

ABSTRACT

The light following robot can be done using sensors, this Raspberry Pi system for light following robot we have used technology by interfacing camera which monitors the light by monitoring the brightness to track the light and car will follow the light. This car will track the light which is used to give the way for the car to make it follow. This Raspberry Pi project is used for surveillance car as the beginners can work with the Open CV technology by using the camera with Raspberry Pi.

BLOCK DIAGRAM

BLOCK DIAGRAM DESCRIPTION

Above block diagram shows that robotic car is connected to the Raspberry Pi through GPIO pins, the camera is also connected with the Raspberry Pi

PROJECT DESCRIPTION

A camera which connected with Raspberry Pi looks for the brightness of light by converting the image into binary and points the centroid in the bright pixels and forms the circle with certain radius, based on the centroid movement car will move forward and will turn left/light.

HARDWARE REQUIRED

• Raspberry Pi
• Power Adapter
• HDMI to VGA converter (optional, when connecting to Monitor)
• L293D (Driver IC)
• Robotic car
• Camera

 

SOFTWARE REQUIRED

• SD Card Formatter
• Win32 Disk Imager (or) Etcher

 

LIBRARIES USED

• Rpi.GPIO as GPIO (To access GPIO Pins of Raspberry Pi)
• Time library (For Delay functions)
• Cv2

 

CONCLUSION

As Raspberry Pi beginners here the system uses the camera for tracking the light, or else it can be detected using a sensor like light dependent resistors.