How to Make a simple LED chaser using 10 segment bargraph light Display

How to Make a simple LED chaser using 10 segment bargraph light Display

By cheetah-e | Arduino Tutorials | 2 Apr 2019


Today i will be making a basic arduino experiment on how to make 10 led chaser using bragraph light display in arduino, This is a LED Chaser with the simplest code. we can have different LED glowing arrangements, like Knight Rider is kinda famous, you can make it by simply putting the same loop but with descending outputs to try it. so what you can learn on this post is, you can actually make your own christmas lights:) on your own desired blink in sequence.

 

190903265-a8f48d49c48ab2bc777c988ae8adfca8efef84e591a28aa7a8129935b3e06257.jpeg

Required Electronic Components:

  • 10 segment bargraph LED display
  • 10k Ohms Resistance
  • Arduino uno
  • Jumper wires
  • Breadboard

The connection Diagram

190903265-b27e3c0ee412353423f7889f4378dd8ab4a5b1256a2163b723fe64de85722f39.png

The Bargraph light display uses 10 different colour of LED. each LED has 2 legs the common anode which means its a possitive and the cathode which is the GND or the negative leg. we need to use resistor to limit or we can say it regulates the amount of power that flows into the led, resistor is made from winding Nichrome or similar wire on an insulating form. This component, called a wirewound resistor and it can be able to handle higher currents.

Arduino Uno R3 has two GND actually 3 GND pins 2 is along with power pins and other one is along with digital pins. Both of the GND pins are common, so you may connect the common cathode leg of the leds on the any GND pin. we have to put the short leg of the led to the horizzontal rail on the breadboard.

TestBlink

190903265-bc913ade54fbda0c682c88090d8065139307378f66fb41ba66553abc33e9a50e.png

SOURCE CODE

Set /Define Output pins of the LED

void setup(){ // The setup() is called once, or the first booth when the sketch starts.
  pinMode(2, OUTPUT); // configured pin as an OUTPUT with pinMode() its voltage will be set to the corresponding value: 5V (or 3.3V on 3.3V boards) for HIGH, 0V (ground) for LOW.
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
} //  { and } is called the body of setup the function

Set/Initialize the Loop Function

void loop(){ // this function runs over and over again
  digitalWrite(4, HIGH); //digitalWrite() will enable/ turn on the led (HIGH) or disable off (LOW) the internal pullup.
  delay(100); // LED wait for the specified number of milliseconds before continuing on to the next line. There are 1000 milliseconds in 1 second
  digitalWrite(4, LOW);
  delay(100);
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(4, LOW);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(8, LOW);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(8, LOW);
  delay(100);
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);
  delay(100);
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(10, LOW);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(10, LOW);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(3, LOW);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(3, LOW);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(5, LOW);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(5, LOW);
  delay(100);
  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11, LOW);
  delay(100);
  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11, LOW);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(6, LOW);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(6, LOW);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(9, LOW);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(9, LOW);
  delay(100);  
  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11, LOW);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(10, LOW);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(9, LOW);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(8, LOW);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(6, LOW);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(5, LOW);
  delay(100);
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(4, LOW);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(3, LOW);
  delay(100);
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);
  delay(100);  
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(11, HIGH);  
  delay(100);
  digitalWrite(2,LOW);
  delay(100);
  digitalWrite(3,LOW);
  delay(100);
  digitalWrite(4,LOW);
  delay(100);
  digitalWrite(5,LOW);
  delay(100);
  digitalWrite(6,LOW);
  delay(100);
  digitalWrite(7,LOW);
  delay(100);
  digitalWrite(8,LOW);
  delay(100);
  digitalWrite(9,LOW);
  delay(100);
  digitalWrite(10,LOW);
  delay(100);
  digitalWrite(11,LOW);
  delay(100);
  digitalWrite(2,HIGH);
  delay(100);
  digitalWrite(3,HIGH);
  delay(100);
  digitalWrite(11,HIGH);
  delay(100);
  digitalWrite(4,HIGH);
  delay(100);
  digitalWrite(10,HIGH);
  delay(100);
  digitalWrite(5,HIGH);
  delay(100);
  digitalWrite(9,HIGH);
  delay(100);
  digitalWrite(6,HIGH);
  delay(100);
  digitalWrite(8,HIGH);
  delay(100);
  digitalWrite(7,HIGH);
  delay(100);  
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(3, LOW);
  delay(100);
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(4, LOW);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(5, LOW);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(6, LOW);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(8, LOW);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(9, LOW);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(10, LOW);
  delay(100);
  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11, LOW);
  delay(100);  
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11,LOW);
  delay(100);
  digitalWrite(10,LOW);
  delay(100);
  digitalWrite(9,LOW);
  delay(100);
  digitalWrite(8,LOW);
  delay(100);
  digitalWrite(7,LOW);
  delay(100);
  digitalWrite(6,LOW);
  delay(100);
  digitalWrite(5,LOW);
  delay(100);
  digitalWrite(4,LOW);
  delay(100);
  digitalWrite(3,LOW);
  delay(100);
  digitalWrite(2,LOW);
  delay(100);  
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(3, LOW);
  delay(100);
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(4, LOW);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(5, LOW);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(6, LOW);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(8, LOW);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(9, LOW);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(10, LOW);
  delay(100);
  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11, LOW);
  delay(100);
  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(10, HIGH);
  delay(100);
  digitalWrite(9, HIGH);
  delay(100);
  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(6, HIGH);
  delay(100);
  digitalWrite(5, HIGH);
  delay(100);
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(2, HIGH);
  delay(100);  
  digitalWrite(2,LOW);
  delay(100);
  digitalWrite(3,LOW);
  delay(100);
  digitalWrite(11,LOW);
  delay(100);
  digitalWrite(4,LOW);
  delay(100);
  digitalWrite(10,LOW);
  delay(100);
  digitalWrite(5,LOW);
  delay(100);
  digitalWrite(9,LOW);
  delay(100);
  digitalWrite(6,LOW);
  delay(100);
  digitalWrite(8,LOW);
  delay(100);
  digitalWrite(7,LOW);
  delay(100);  
  digitalWrite(11, HIGH);
  delay(100);  
  digitalWrite(11,LOW);
  delay(100);
}

I hope you enjoy this helpful activity if wan to learn how arduino works, and how to make a sketch, then maybe this blog might help you. so thats it, if you want to know and see my future activity follow me! thank you.

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cheetah-e
cheetah-e

I am a maker of diy electronic stuff and crypto lover


Arduino Tutorials
Arduino Tutorials

I make new Arduino tutorials bi-weekly. stay tuned for more future arduino projects. thank you

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