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Working on Arduino UNO #2

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292 changes: 292 additions & 0 deletions _7_segment/_7_segment.ino
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/*
Make Projects: How to Drive a 7 Segment LED
URL:
By: Riley Porter
This is an introduction on how to drive a 7 Segment LED using only a Arduino. This is
not the best way to do this. This is meant to be a learning excercise. In later tutorials
I will show you how to use an dedicated IC using SPI or a Shift Register. Enjoy.


digitalWrite(8, HIGH) = turn off the "A" segment in the LED display
digitalWrite(9, LOW) = turn on the "B" segment in the LED display
*/


/* This piece wasn't working, lots of weird errors, so I changed to the real pin numbers
#define A 8
#define B 9
#define C 2
#define D 3
#define E 4
#define F 5
#define G 6
*/



void clr() {
//Clears the LED
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(2, LOW);
digitalWrite(3, LOW);
digitalWrite(4, LOW);
digitalWrite(5, LOW);
digitalWrite(6, LOW);
}


void char_A()
{
digitalWrite(3, LOW);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void char_B()
{
//Displays B
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(2, HIGH);
}

void char_C()
{
//Displays C
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, LOW);
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(2, LOW);
}

void char_D()
{
//Displays D
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, LOW);
digitalWrite(6, HIGH);
digitalWrite(8, LOW);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void char_E()
{
//Displays E
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(2, LOW);
}

void char_F()
{
//Displays F
digitalWrite(3, LOW);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(2, LOW);
}


void one()
{
//Displays 1
digitalWrite(3, LOW);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, LOW);
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(2, LOW);
}

void two()
{
//Displays 2
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, LOW);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(2, LOW);
}

void three()
{
//Displays 3
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
digitalWrite(5, LOW);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void four()
{
//Displays 4
digitalWrite(3, LOW);
digitalWrite(4, LOW);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, LOW);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void five()
{
//Displays 5
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(2, HIGH);
}

void six()
{
//Displays 6
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(2, HIGH);
}

void seven()
{
//Displays 7
digitalWrite(3, LOW);
digitalWrite(4, LOW);
digitalWrite(5, LOW);
digitalWrite(6, LOW);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void eight()
{
//Displays 8
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void nine()
{
//Displays 9
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void zero()
{
//Displays 0
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, LOW);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(2, HIGH);
}

void LoopDisplay()
{
//Loop through all Chars and Numbers
char_A();
delay(1000);
char_B();
delay(1000);
char_C();
delay(1000);
char_D();
delay(1000);
char_E();
delay(1000);
char_F();
delay(1000);
one();
delay(1000);
two();
delay(1000);
three();
delay(1000);
four();
delay(1000);
five();
delay(1000);
six();
delay(1000);
seven();
delay(1000);
eight();
delay(1000);
nine();
delay(1000);
zero();
delay(1000);
}

void setup()
{
//Setup our pins
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
clr(); // There wasn't a call for this function so I just thought here would be the best place to clear the pins
Serial.begin(9600); //Begin serial communcation

}

void loop()
{
Serial.println("Starting\n");
LoopDisplay();

}




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