Introduction: Arduino 7 Segment Display
I am going to show you how to control a 7 segment display with your arduino!
What is it doing?
It's counting from 1 to 2 to 3 to 4 to 5 to 6 to 7 to 8 to 9 to 0 to . (its really the point)
Step 1: Parts
Parts list:
1. 7 segment display module
2. An Arduino uno
3. Jumper wires
4. Breadboard
5. 8 220Ω resistors
Step 2: How the 7 Segment Is Working
For details, look to the picture...
It's easy if you understand it
Step 3: Putting Everything Together
Schematics in the picture
Don't forget the 220Ω resistors!
Step 4: The Program Code
Here is the code:
void setup() {
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
pinMode(10, OUTPUT);
pinMode(9, OUTPUT);
pinMode(8, OUTPUT);
pinMode(7, OUTPUT);
pinMode(6, OUTPUT);
}
void loop() {
one();
delay(1000);
off();
two();
delay(1000);
off();
three();
delay(1000);
off();
four();
delay(1000);
off();
five();
delay(1000);
off();
six();
delay(1000);
off();
seven();
delay(1000);
off();
eight();
delay(1000);
off();
nine();
delay(1000);
off();
zero();
delay(1000);
off();
point();
delay(5000);
off();
}
void one(){
digitalWrite(6, HIGH);
digitalWrite(11, HIGH);
}
void two(){
digitalWrite(7, HIGH);
digitalWrite(6, HIGH);
digitalWrite(9, HIGH);
digitalWrite(13, HIGH);
digitalWrite(12, HIGH);
}
void three() {
digitalWrite(11, HIGH);
digitalWrite(12, HIGH);
digitalWrite(7, HIGH);
digitalWrite(6, HIGH);
digitalWrite(9, HIGH);
}
void four() {
digitalWrite(11, HIGH);
digitalWrite(8, HIGH);
digitalWrite(6, HIGH);
digitalWrite(9, HIGH);
}
void five() {
digitalWrite(11, HIGH);
digitalWrite(12, HIGH);
digitalWrite(7, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
}
void six() {
digitalWrite(13, HIGH);
digitalWrite(12, HIGH);
digitalWrite(11, HIGH);
digitalWrite(9, HIGH);
digitalWrite(8, HIGH);
digitalWrite(7, HIGH);
}
void seven() {
digitalWrite(11, HIGH);
digitalWrite(7, HIGH);
digitalWrite(6, HIGH);
}
void eight() {
digitalWrite(13, HIGH);
digitalWrite(12, HIGH);
digitalWrite(11, HIGH);
digitalWrite(9, HIGH);
digitalWrite(8, HIGH);
digitalWrite(7, HIGH);
digitalWrite(6, HIGH);
}
void nine() {
digitalWrite(12, HIGH);
digitalWrite(11, HIGH);
digitalWrite(9, HIGH);
digitalWrite(8, HIGH);
digitalWrite(7, HIGH);
digitalWrite(6, HIGH);
}
void zero() {
digitalWrite(13, HIGH);
digitalWrite(12, HIGH);
digitalWrite(11, HIGH);
digitalWrite(8, HIGH);
digitalWrite(7, HIGH);
digitalWrite(6, HIGH);
}
void point() {
digitalWrite(10, HIGH);
}
void off() {
digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
digitalWrite(7, LOW);
digitalWrite(6, LOW);
}
Step 5: Done!
Now your done!
I hope you liked it and please share it with your friends =)
You can also experiment now with the 7 segment display!