LCD menu options (best route)

hi,

i have been searching internet 2 solid days idea of how menu options lcd. have included flow chart of trying accomplish. new programming, learning go. have included code have written far , tried make notations of , trying do. far have 1 button doing sort of after. still long way off though afraid.

the program choose led , options led light drum when struck through midi input. of midi stuff has been programmed else , trying interact 16x2 lcd (4 bit) it.

it have 5 buttons. up, down, right, left , center (store). don't think on right path buttons , accessing menu options, if of has advice sure use help.

thanks
jeremy

here completed schematic. still have tweaking on it.

code: [select]

/*
  lcd portion of code. sets pins
  , intro screen.
 
 the circuit:
 * lcd rs pin digital pin 2
 * lcd enable pin digital pin 3
 * lcd d4 pin digital pin 4
 * lcd d5 pin digital pin 5
 * lcd d6 pin digital pin 6
 * lcd d7 pin digital pin 7
 * 10k resistor:
   * ends +5v , ground
   * wiper lcd vo pin (pin 3)
 
 http://www.arduino.cc/en/tutorial/liquidcrystal
 
 */

// include library code:
#include <liquidcrystal.h>

// initialize 4 bit lcd library numbers of interface pins
liquidcrystal lcd(2, 3, 4, 5, 6, 7);

// constants won't change. they're used here
// set pin numbers:

const int ledpin =  13;      // number of led pin

int switchpin1 =12;              // switch1 connected pin 12
int switchpin2 =11;              // switch2 connected pin 11
int switchpin3 =10;              // switch3 connected pin 10
int switchpin4 =9;              // switch4 connected pin 9
int switchpin5 =8;              // switch5 connected pin 8

int led1pin = 13;
int led2pin = 8;
int led3pin = 9;
int led4pin = 10;
int led5pin = 12;

int val;                        // variable reading pin status
int val2;                       // variable reading delayed status
int buttonstate;                // variable hold button state

int lightmode = 0;              // mode light in?



//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

void setup() {
 
  //lcd setup
 
  // set lcd's number of rows , columns:
  lcd.begin(16, 2);
 
  // print message lcd.
  lcd.print("**midi nights**");
  delay (1000);
  lcd.setcursor(0, 4);
  lcd.print("led menu options");
  delay (1000);
  lcd.clear();
   
    // resets cursor position
  lcd.setcursor(0, 4);
  lcd.print("    use right/left buttons select led    ");
  delay (20);
 
    // scroll 150 positions (string length) left
    // move offscreen left:
 for (int positioncounter = 0; positioncounter < 27; positioncounter++) {
    // scroll 1 position left:
   lcd.scrolldisplayleft();
    // wait bit:
   delay(50);
 }
 lcd.clear();    //clear screen , reset cursor
 lcd.setcursor(1, 9);
 lcd.print("select led < >");  //select desired led
 delay (4000);    // delays on screen goes led choices
 
 //button setup
 
 pinmode(switchpin1, input);    // set switch pin input menu right
 pinmode(switchpin2, input);    // set switch pin input menu left
 pinmode(switchpin3, input);    // set switch pin input menu up
 pinmode(switchpin4, input);    // set switch pin input menu down
 pinmode(switchpin5, input);    // set switch pin input menu store

 pinmode(led1pin, output);     // leds outputs become leds 1-33 (11 led selections 3 colors each)
 pinmode(led2pin, output);     // right each button press lights same light
 pinmode(led3pin, output);     // ultimate goal charlieplex decoder , latches
 pinmode(led4pin, output);
 pinmode(led5pin, output);
 
 serial.begin(9600);           // set serial communication @ 9600bps
 buttonstate = digitalread(switchpin1);   // read initial state
}


//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

void loop() {
 val = digitalread(switchpin1);      // read input value , store in val
 delay(10);                         // 10 milliseconds amount of time
 val2 = digitalread(switchpin1);     // read input again check bounces
 if (val == val2) {                 // make sure got 2 consistant readings!
   if (val != buttonstate) {          // button state has changed!
     if (val == low) {                // check if button pressed
       if (lightmode == 0) {          // if off
         lightmode = 1;               // turn light on!
       } else {
         if (lightmode == 1) {        //
           lightmode = 2;             //
         } else {
           if (lightmode == 2) {      //
             lightmode = 3;           //
             } else {
               if (lightmode == 3) {      //
                 lightmode = 4;           //
                 } else {
                   if (lightmode == 4) {      //
                     lightmode = 5;           //
                        } else {
                   if (lightmode == 5) { //  
                       lightmode = 0;           //
                 }
               }
             }
         }
         }
       }
     }
   }
   buttonstate = val;                 // save new state in our variable
 }

 // whatever lightmode indicates
 if (lightmode == 0) { // led on
   digitalwrite(led1pin, high);
   lcd.clear();
   lcd.print("led 1");
   delay (100);
   
 }

 if (lightmode == 1) {             // led on
   digitalwrite(led1pin, high);    //turns on led
   lcd.clear();                    // clears screen
   lcd.print("led 2");             // name of led
   delay (100);                    // delay keep lcd flashing while looping, not after
 }

 if (lightmode == 2) { // led on
   digitalwrite(led1pin, high);
   lcd.clear();
   lcd.print("led 3");
   delay (100);
 }
 if (lightmode == 3)  { // led on
   digitalwrite(led1pin, high);
   lcd.clear();
   lcd.print("led 4");
   delay (100);
 }
if (lightmode == 4)  { // led on
   digitalwrite(led1pin, high);
   lcd.clear();
   lcd.print("led 5");
   delay (100);
 }  
if (lightmode == 5)  { // led on
   digitalwrite(led1pin, high);
   lcd.clear();
   lcd.print("led 6");
   delay (100);
 }
}




code: [select]

if (lightmode == 0) {          // if off
         lightmode = 1;               // turn light on!
       } else {
         if (lightmode == 1) {        //
           lightmode = 2;             //
         } else {
           if (lightmode == 2) {      //
             lightmode = 3;           //
             } else {
               if (lightmode == 3) {      //
                 lightmode = 4;           //
                 } else {
                   if (lightmode == 4) {      //
                     lightmode = 5;           //
                        } else {
                   if (lightmode == 5) { //  
                       lightmode = 0;           //
                 }


can introduce mr switch statement?
http://arduino.cc/en/reference/switchcase

or ms modulo?
http://arduino.cc/en/reference/modulo

one other minor thing:

code: [select]

// constants won't change. they're used here to
// set pin numbers:

const int ledpin =  13;      // number of led pin

int switchpin1 =12;              // switch1 connected pin 12
int switchpin2 =11;              // switch2 connected pin 11
int switchpin3 =10;              // switch3 connected pin 10
int switchpin4 =9;              // switch4 connected pin 9
int switchpin5 =8;              // switch5 connected pin 8

int led1pin = 13;
int led2pin = 8;
int led3pin = 9;
int led4pin = 10;
int led5pin = 12;


as per comment, mean plan on dynamically moving these led , switch pins?

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