Dear all,
I am lost and trying to understand my code.
Behind is what i would like to do with my screen REPRAP 128x64:
And here is my code:
#include "U8glib.h"
U8GLIB_ST7920_128X64_1X u8g(23, 17, 16);
#define KEY_NONE 0
#define KEY_PREV 31
#define KEY_NEXT 33
#define KEY_SELECT 35
#define KEY_BACK 29uint8_t uiKeyPrev = 33;
uint8_t uiKeyNext = 31;
uint8_t uiKeySelect = 35;
uint8_t uiKeyBack = 8;uint8_t uiKeyCodeFirst = KEY_NONE;
uint8_t uiKeyCodeSecond = KEY_NONE;
uint8_t uiKeyCode = KEY_NONE;void uiSetup(void) {
// configure input keyspinMode(uiKeyPrev, INPUT_PULLUP);
pinMode(uiKeyNext, INPUT_PULLUP);
pinMode(uiKeySelect, INPUT_PULLUP);
pinMode(uiKeyBack, INPUT_PULLUP);
}void uiStep(void) {
uiKeyCodeSecond = uiKeyCodeFirst;
if ( digitalRead(uiKeyPrev) == LOW )
uiKeyCodeFirst = KEY_PREV;
else if ( digitalRead(uiKeyNext) == LOW )
uiKeyCodeFirst = KEY_NEXT;
else if ( digitalRead(uiKeySelect) == LOW )
uiKeyCodeFirst = KEY_SELECT;
else if ( digitalRead(uiKeyBack) == LOW )
uiKeyCodeFirst = KEY_BACK;
else
uiKeyCodeFirst = KEY_NONE;if ( uiKeyCodeSecond == uiKeyCodeFirst )
uiKeyCode = uiKeyCodeFirst;
else
uiKeyCode = KEY_NONE;
}#define MENU_ITEMS 3
const char *menu_strings[MENU_ITEMS] = { "Position du robot", "Nombre de cycles", "Lancement Essai"};
uint8_t menu_current = 0;
uint8_t menu_redraw_required = 0;
uint8_t last_key_code = KEY_NONE;void drawMenu(void) {
uint8_t i, h;
u8g_uint_t w, d;u8g.setFont(u8g_font_6x13);
u8g.setFontRefHeightText();
u8g.setFontPosTop();h = u8g.getFontAscent()-u8g.getFontDescent();
w = u8g.getWidth();
for( i = 0; i < MENU_ITEMS; i++ ) {
d = (w-u8g.getStrWidth(menu_strings[i]))/2;
u8g.setDefaultForegroundColor();
if ( i == menu_current ) {
u8g.drawBox(0, ih+1, w, h);
u8g.setDefaultBackgroundColor();
}
u8g.drawStr(d, ih, menu_strings[i]);
}
}void updateMenu(void) {
if ( uiKeyCode != KEY_NONE && last_key_code == uiKeyCode ) {
return;
}
last_key_code = uiKeyCode;switch ( uiKeyCode ) {
case KEY_NEXT:
menu_current++;
if ( menu_current >= MENU_ITEMS )
menu_current = 0;
menu_redraw_required = 1;
break;
case KEY_PREV:
if ( menu_current == 0 )
menu_current = MENU_ITEMS;
menu_current--;
menu_redraw_required = 1;
break;case KEY_SELECT: if ( menu_current == 0 ) menu_current = MENU_ITEMS; menu_redraw_required = 1; break;}
}void setup() {
// rotate screen, if required
// u8g.setRot180();uiSetup(); // setup key detection and debounce algorithm
menu_redraw_required = 1; // force initial redraw
}void loop() {
uiStep(); // check for key press
if ( menu_redraw_required != 0 ) {
u8g.firstPage();
do {
drawMenu();
} while( u8g.nextPage() );
menu_redraw_required = 0;
}updateMenu(); // update menu bar
}
I do not understand how can i reload a new screen when i press the select button. For exemble i did this kind of code:
I would like to do something like if it is the first line, and i press select, i go to the menu "position"
i add somethinkg lika that but it does not work:
#define MENU_ITEMS2 3
const char *menu_strings2[MENU_ITEMS] = { "Position du robot", "Nombre de cycles",
case KEY_SELECT:
if ( menu_current == 0 )
menu_current = MENU_ITEMS2;
menu_redraw_required = 1;
break;
If someone can help me to undertand how to change my screen when i press the select button...
Thanks a lot! 