![]() ![]() Building Autonomous Line Followers with Arduino and PID! If you decided to build a line following robot, you probably already know what it islet [s take a closer. Building Autonomous Line Followers with Arduino and PID! Want to put your line following skills to the test? Whether you use LEGO MINDSTORMS, Arduino, or any other robotics platform, I’ve made it easy for you to do just that. You can now easily make your own line following tracks by just printing a set of standard tiles. It’s all free, so go ahead and. The line follower robot is made by op-amps and transistors, where the motor is directly on or off using the signal of the comparator. Now the techniques can be replaced by PWM using. For my final project, I decided to make a line-follower robot. This simple robot is designed to be able to follow a black line on the ground without getting off the line too much. The robot has two sensors installed underneath the front part of the body, and two DC motors drive wheels moving forward. A circuit inside takes an input signal from two sensors and controls the speed of wheels’ rotation. The control is done in such a way that when a sensor senses a black line, the motor slows down or even stops. Then the difference of rotation speed makes it possible to make turns. For instance, in the figure on the right, if the sensor somehow senses a black line, the wheel on that side slows down and the robot will make aright turn. Components Required • Arduino UNO (or Arduino Nano) • L293D Motor Driver IC • Geared Motors x 2 • Robot Chassis • IR Sensor Module x 2 • Black Tape (Electrical Insulation Tape) • Connecting Wires • Power supply Note: We have used a prebuilt IR Sensor Module that consists of an IR LED and a Photo Diode. If you do not have this, we have explained how to build one yourself. Block Diagram of the Project The line follower robot built in this project is divided in to 4 blocks. The following image shows the block diagram for line follower robot. Block Diagram Description Sensors (IR Sensor): We have used IR Sensor Module as the line detecting sensor for the project. It consists of an IR LED and a Photo diode and some other components like comparator, LED etc. As mentioned earlier, we have used a pre – assembled IR Sensor. In case you do not have one, you can make your own sensor using the following circuit. The working of the IR Sensor and its scope in this project will be explained in the actual working of the Line Follower Robot. Controller (Arduino UNO): Arduino UNO is the main controller in the project. The data from the sensors (IR Sensors) will be given to Arduino and it gives corresponding signals to the Motor Driver IC. Motor Driver (L293D): L293D Motor Driver IC is used in this project to drive the motors of the robot. It receives signals from Arduino based on the information from the IR Sensors. Note: The power supply to the motors must be given from the motor driver IC. Hence, choose the appropriate power supply which is sufficient for all the components including the motors. Motors (Geared Motors): We have used two geared motors at the rear of the line follower robot. These motors provide more torque than normal motors and can be used for carrying some load as well. Working of Arduino Line Follower Robot In this project, we have designed an Arduino based Line Follower Robot. The working of the project is pretty simple: detect the black line on the surface and move along that line.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
November 2018
Categories |