How to make a knight rider LED chaser (part i)
Hello friends, welcome back to my blog post. In a previous article, I talked about how to light an LED bulb using Arduino. Also gained some knowledge of coding. Also, this tutorial covers the basics for making Knight Rider LED Chasers.
Today I am going to talk about how to make an LED chaser using eight LED bulbs. This project is very easy. We are creating this project using the basic knowledge of Arduino. So we will now learn step by step how to do this project. So let’s go to the post.
Below are the components needed for this project and the links where they can be purchased.
Components
- Arduino Uno board. —- Amazon / Our Store
- Breadboard.—- Amazon / Our Store
- LED Bulbs. x 8 — Banggood / Amazon / AliExpress
- 1K Resistors. x 8 —- Banggood / Amazon / AliExpress
- Jumper Wires. (Male to Male) x 9 — Amazon / Our Store
Step 1
Get the components you need.
Arduino UNO board
The reason for using the Arduino board for this project is that it is low cost and easy to use for this project.
Breadboard
A breadboard is a very important component for testing electronic circuits. Below is how this is connected internally.
LED bulb
I have used eight LED bulbs for this project.LED means a lightning emitting diode. This is a diode. The main feature of these components is that they produce light as the current passes through it. Also, This component is very useful for light decoration.
Resistor
I have used eight resistors for this project. This component is used to control the current. Use these as the current coming through the Arduino board can go through the bulbs and burn out.
Jumper wire
This item is most useful for connecting the Arduino board with other components. There are three types of jumper wires. They are male to male, female to female, and female to male. This project for I’m used male to male jumper wires.
Step 2
Connect the LED bulbs to your breadboard as shown below.
Step 3
Connect the resistors to the LED bulb anode pins.
Step 4
Connect this circuit to the Arduino board.
I used 2 to 9 digital pins for this project. All cathode pins are connected to the Arduino GND pin.
Step 5
Connect the computer to your Arduino board.
Step 6
So let’s see how to create code for this project.
Project code
Copy and paste this code into your Arduino IDE.
void setup() {
//define LED pins
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
}
void loop() {
digitalWrite(2, HIGH);//1st LED on
delay(200);//time delay
digitalWrite(2, LOW);//1st LED off
delay(200);//time delay
digitalWrite(3, HIGH);//2nd LED on
delay(200);//time delay
digitalWrite(3, LOW);//2nd LED off
delay(200);//time delay
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(5, HIGH);
delay(200);
digitalWrite(5, LOW);
delay(200);
digitalWrite(6, HIGH);
delay(200);
digitalWrite(6, LOW);
delay(200);
digitalWrite(7, HIGH);
delay(200);
digitalWrite(7, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(9, HIGH);
delay(200);
digitalWrite(9, LOW);
delay(200);
}The same code used to blink one bulb is used for this project. The Arduino digital pins used for this project are included in the void setup. I have used 2 to 9 digital pins for this project. The void loop function includes how to blink LEDs one by one. The same code used in the second article is used for this project. Increases LED bulbs only.
Step 7
Verify and check code errors.
Select the Arduino board.
Select the correct COM port.
Step 8
Finally, upload the code.
If all the above steps are done correctly, the project will be successful. Watch the video below for the final result. Change the code and experiment.
We will meet again in the second post of this post. Have a good day. Bye.
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