![]() ![]() ![]() So, that it is easier for you to make connections. I have used different color wires for each of the connections and assign a pin number where they are connected. The data wire of the left sensor is connected to the 3rd pin of Arduino UNO and the data wire of the right sensor is connected to the 2nd pin of the Arduino UNO. The VCC wire of both the sensor is connected to the 5V pin of the Arduino UNO and the GND wire of both the sensor is connected to the GND pin of Arduino UNO. Then there are two IR sensors on for the left side and the other for the right side. So, we have our main component that is an Arduino UNO board that will be controlling all the motors and sensors, and then control the movement of the robot. Now, I will discuss the circuit diagram of the line follower robot. Components needed for Line Follower RobotĬircuit diagram of Line Follower Robot Circuit working the robot will align itself to the center position.Īnd in the last condition is when both the sensors are on a black line that means this is the end of the line and the robot should stop. So for that, we stop the right motor and rotate the left motor in the forward direction. ![]() In the third condition, when the right sensor is on the black line the robot should align back to its previous position. In the second condition, when the left sensor is on the black line the robot should align it back to the previous position where the line is in between the two sensors, For that we will stop the left motor and rotate the right motor in the forward direction and thus the line will come again in between the two sensors. For that, both the motor should move in the forward direction. In the first condition, when the line is in between the two sensors the robot should move in the forward direction. When both the sensors are on the light background the IR rays from the IR sensor are reflected by the surface and we will get logic 1 from both the sensor and when one of the sensors is on a black line that particular sensor will output logic 0 because all the light emitted by the sensor got absorbed by the black line. The robot also consists of two motors that will control the movement of the robot. which are place in such a way that the black line always falls in the middle of the two sensors. The line follower robot is equipped with two IR sensors. The IR sensor that I am using here, outputs logic 1 when it detects white color and outputs logic 0 when it detects black color. Here, we will use a black-colored path over a white background. In this tutorial, we will use IR sensors as they are cheap and easy to use. Working of Line Follower RobotĪ line follower consists of a color sensor or an IR sensor for the detection of the path. These types of robots are widely used in automation industries, e-commerce, and logistics industries. ![]() Once, the path is detected the robot will start moving along with the path. These type of robots uses either color sensor or IR sensor for the detection of the path. We mainly use a black color line over a white color background. Generally, a dark color line over a light color background is preferred. A line follower robot is a type of robot that can detect and follows a specific path. ![]()
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