Hey guys,
I've been looking at loads of examples and i just cant get my head around them, calling different .h files and bits and pieces.
I want to put an LCD Screen and a 3 Button menu in my car.
i have a 16x2 LCD and 3 Large Tactile Switches all connected to the arduino, buttons are connected to Digital Input 8,9,10 and have 4 delays connected to 1,6,7 and 13.
Simple Menu:
|First
|Second
|Third
| Fouth |
|---|
Button 1 = Up
Button 2 = Select
Button 3 = Down
All i want to do is to be able to select an option and turn a relay on and to select it again to turn it off. 
I Used this http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1273469106/all to try and make i work and its gone all to pot, any chance anyone could have a look at it please ?
Yeah i am a newbie, altho i should walk before i should run, but any help would be really appriciated?
Many Thanks
This is my altered code:
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
int rly1Pin = 6;
int rly2Pin = 7;
int rly3Pin = 13;
int rly4Pin = 1;
int prognumber = 1;
int line = 1;
int down = 8;
int select = 9;
int up = 10;
void menu();
void LCDclear();
void LCDfirst();
void LCDsecond();
void LCDmenudisplay();
void first();
void second();
void third();
void fourth();
void setup() {
lcd.begin(16, 2);
menu();
}
void loop() {
//nothing to loop but is required in every sketch.
}
void LCDclear(){
lcd.print(0xFE, BYTE);
lcd.clear();
}
void LCDfirst(){
lcd.print(0xFE, BYTE);
lcd.setCursor(0, 0); // bottom left
}
void LCDsecond(){
lcd.print(0xFE, BYTE);
lcd.setCursor(0, 1); // bottom left
}
void menu() {
while(digitalRead(up) == HIGH or digitalRead(down) == HIGH or digitalRead(select) == HIGH){};
delay(50);
LCDclear();
LCDfirst();
if(prognumber > 1){
prognumber--;
}
else{
prognumber == 1;
}
LCDmenudisplay();
LCDsecond();
prognumber++;
LCDmenudisplay();
if(line == 1){
lcd.print(0xFE, BYTE);
lcd.print(143, BYTE);
lcd.print("<");
}
else {
lcd.print(0xFE, BYTE);
lcd.print(207, BYTE);
lcd.print("<");
}
while(digitalRead(up) == LOW && digitalRead(down) == LOW && digitalRead(select) == LOW){}
if(digitalRead(down) == HIGH){
line++;
if(line > 2){
line = 2;
prognumber++;
if(prognumber > 4){
prognumber = 5;
}
}
menu();
}
else if(digitalRead(up) == HIGH){
line--;
if(line < 1){
line = 1;
prognumber--;
}
menu();
}
else if(digitalRead(select) == HIGH){
if(line == 1){
prognumber--;
}
switch (prognumber) {
case 1:
first();
break;
case 2:
second();
break;
case 3:
third();
break;
case 4:
fourth();
break;
default:
first();
}
}
}
void LCDmenudisplay() {
switch (prognumber) {
case 1:
lcd.print("First");
break;
case 2:
lcd.print("Second");
break;
case 3:
lcd.print("Third");
break;
case 4:
lcd.print("Fourth");
break;
}
}
void first() {
digitalWrite(rly1Pin, HIGH);
menu();
}
void second() {
digitalWrite(rly2Pin, HIGH);
menu();
}
void third() {
digitalWrite(rly3Pin, HIGH);
menu();
}
void fourth() {
digitalWrite(rly4Pin, HIGH);
menu();
}