snippet.c

#include <Keypad.h>
long ra = 0; //random var for keypad

int converted;

int g =  22;// led segments
int f =  23;
int a =  24;
int b =  25;
int e =  26;
int d =  27;
int c =  28;
int point = 29;

const byte ROWS = 4; //four rows
const byte COLS = 3; //three columns
char keys[ROWS][COLS] = {
	{'1','2','3'},
		{'4','5','6'},
		{'7','8','9'},
		{'#','0','*'}
};
//connect to the row pinouts of the keypad
byte rowPins[ROWS] = {7, 2, 3, 5};
byte colPins[COLS] = {6, 8, 4};

Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

void setup(){
	pinMode(g, OUTPUT);     
	pinMode(f, OUTPUT);     
	pinMode(a, OUTPUT);     
	pinMode(b, OUTPUT);     
	pinMode(e, OUTPUT);     
	pinMode(d, OUTPUT);     
	pinMode(c, OUTPUT);     
	pinMode(point, OUTPUT);
	ledalloff();
	Serial.begin(57600);// begin the serial connection to the tellymate
	reset_number();
}

void loop(){   // begin the loop

	char key = keypad.getKey(); // get the key pressed

	int converted = atoi(&key);

	if (key != NO_KEY){
		Serial.print(key);

		switch (converted) {
			case 0:
			led0();
			break;

			case 1:
			led1();
			break;

			case 2:
			led2();
			break;

			case 3:
			led3();
			break;

			case 4:
			led4();
			break;

			case 5:
			led5();
			break;

			case 6:
			led6();
			break;

			case 7:
			led7();
			break;

			case 8:
			led8();
			break;

			case 9:
			led9();
			break;

			default:
			ledalloff();

		}

		if (converted == ra) {
			Serial.println(" ");

			Serial.println("KABOOM");
			ledexplode(6);
			Serial.println(" ");
			reset_number();
		}
	}
}



void reset_number(){

	delay(2000);
	Serial.println("loading");
	ledloading(4);
	ledalloff();
	Serial.println("nEw nUmbEr Chosen");
// Seed the generator with static from the analog input
	randomSeed(analogRead(0));
	ra = random(10);

}

void ledalloff() {
	digitalWrite(g, HIGH);
	digitalWrite(f, HIGH);
	digitalWrite(a, HIGH);
	digitalWrite(b, HIGH);
	digitalWrite(e, HIGH);
	digitalWrite(d, HIGH);
	digitalWrite(c, HIGH);
	digitalWrite(point, HIGH);
}

void led0() {
	digitalWrite(g, HIGH);
	digitalWrite(f, LOW);
	digitalWrite(a, LOW);
	digitalWrite(b, LOW);
	digitalWrite(e, LOW);
	digitalWrite(d, LOW);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led1() {
	digitalWrite(g, HIGH);
	digitalWrite(f, HIGH);
	digitalWrite(a, HIGH);
	digitalWrite(b, LOW);
	digitalWrite(e, HIGH);
	digitalWrite(d, HIGH);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led2() {
	digitalWrite(g, LOW);
	digitalWrite(f, HIGH);
	digitalWrite(a, LOW);
	digitalWrite(b, LOW);
	digitalWrite(e, LOW);
	digitalWrite(d, LOW);
	digitalWrite(c, HIGH);
	digitalWrite(point, HIGH);
}

void led3() {
	digitalWrite(g, LOW);
	digitalWrite(f, HIGH);
	digitalWrite(a, LOW);
	digitalWrite(b, LOW);
	digitalWrite(e, HIGH);
	digitalWrite(d, LOW);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led4() {
	digitalWrite(g, LOW);
	digitalWrite(f, LOW);
	digitalWrite(a, HIGH);
	digitalWrite(b, LOW);
	digitalWrite(e, HIGH);
	digitalWrite(d, HIGH);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led5() {
	digitalWrite(g, LOW);
	digitalWrite(f, LOW);
	digitalWrite(a, LOW);
	digitalWrite(b, HIGH);
	digitalWrite(e, HIGH);
	digitalWrite(d, LOW);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led6() {
	digitalWrite(g, LOW);
	digitalWrite(f, LOW);
	digitalWrite(a, LOW);
	digitalWrite(b, HIGH);
	digitalWrite(e, LOW);
	digitalWrite(d, LOW);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led7() {
	digitalWrite(g, HIGH);
	digitalWrite(f, HIGH);
	digitalWrite(a, LOW);
	digitalWrite(b, LOW);
	digitalWrite(e, HIGH);
	digitalWrite(d, HIGH);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led8() {
	digitalWrite(g, LOW);
	digitalWrite(f, LOW);
	digitalWrite(a, LOW);
	digitalWrite(b, LOW);
	digitalWrite(e, LOW);
	digitalWrite(d, LOW);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void led9() {
	digitalWrite(g, LOW);
	digitalWrite(f, LOW);
	digitalWrite(a, LOW);
	digitalWrite(b, LOW);
	digitalWrite(e, HIGH);
	digitalWrite(d, HIGH);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void ledstar() {
	digitalWrite(g, LOW);
	digitalWrite(f, LOW);
	digitalWrite(a, HIGH);
	digitalWrite(b, HIGH);
	digitalWrite(e, HIGH);
	digitalWrite(d, HIGH);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}

void ledhash() {
	digitalWrite(g, LOW);
	digitalWrite(f, HIGH);
	digitalWrite(a, HIGH);
	digitalWrite(b, HIGH);
	digitalWrite(e, LOW);
	digitalWrite(d, LOW);
	digitalWrite(c, LOW);
	digitalWrite(point, HIGH);
}


void ledexplode(int counter) {
	int z = 0;
	for(z = 0; z < counter; z++)
	{
		ledalloff();
		digitalWrite (d, LOW);
		delay(80);
		digitalWrite (g, LOW);
		delay(80);
		digitalWrite (a, LOW);
		delay(80);
		digitalWrite (d, HIGH);
		delay(80);
		digitalWrite (g, HIGH);
		delay(80);
		digitalWrite (a, HIGH);
		delay(80);
		delay(230);
	}
}

// called with ledloading(4)
void ledloading(int counter) {
	int z = 0;
	for (z = 0; z < counter; z++)
	{
		ledalloff();
		digitalWrite(a, LOW);
		digitalWrite(d, LOW);
		digitalWrite(f, HIGH);
		digitalWrite(c, HIGH);
		delay(80);
		digitalWrite(a, HIGH);
		digitalWrite(d, HIGH);
		digitalWrite(b, LOW);
		digitalWrite(e, LOW);
		delay(80);
		digitalWrite(b, HIGH);
		digitalWrite(e, HIGH);
		digitalWrite(f, LOW);
		digitalWrite(c, LOW);
		delay(80);
	}
}