This one is for my boy Mike... he's trying to build some toys for his air hockey table and I thought I'd help out and do a simple demonstration... of course, with my Arduino...
drop.io: simple private sharing
I'm pretty proud of this one, as I did this entire thing without any help at all... With basic Arduino commands learned from some tutorials, I've put together a simplistic program that displays numbers on the 7 Segment LED
I really wish I could get good with drawing schematics and layouts with Eagle, but it's soo dang hard!
int a = 2;
int b = 3;
int c = 4;
int d = 5;
int e = 6;
int f = 7;
int g = 8;
int pinSets[10][7] = {
{a,b,c,d,e,f,-1}, // 0
{ -1,b,c,-1,-1,-1,-1}, // 1
{a,b,-1,d,e,-1,g}, // 2
{a,b,c,d,-1,-1,g}, // 3
{-1,b,c,-1,-1,f,g}, // 4
{a,-1,c,d,-1,f,g}, // 5
{a,-1,c,d,e,f,g}, // 6
{a,b,c,-1,-1,-1,-1}, // 7
{a,b,c,d,e,f,g}, // 8
{a,b,c,d,-1,f,g} // 9
};
int switchPin = 9;
int bState;
int val;
int buttonPresses = 0;
void setup() {
pinMode(a, OUTPUT);
pinMode(b, OUTPUT);
pinMode(c, OUTPUT);
pinMode(d, OUTPUT);
pinMode(e, OUTPUT);
pinMode(f, OUTPUT);
pinMode(g, OUTPUT);
pinMode(switchPin, INPUT);
bState = digitalRead(switchPin);
}
void loop() {
val = digitalRead(switchPin);
if ((val != bState) && (val == LOW)){
buttonPresses++;
if(buttonPresses == 10)
{
buttonPresses = 0;
}
}
clear();
bState = val;
displayNumber(buttonPresses);
}
void clear() {
int i;
for(i = 2; i < 9; i++){
digitalWrite(i,LOW);
}
}
void displayNumber(int n) {
int i = 0;
for(i = 0; i < 7; i++) {
if(pinSets[n][i] != -1) {
digitalWrite(pinSets[n][i],HIGH);
}
}
}