digital-clock/README.md

Digital Clock

Arduino based digital clock.

Compiling

To be able to compile this, you need to modify the LcdMenu library. Edit the LcdMenu.h file from the LcdMenu library, find this:

    /**
     * Toggle backlight
     */
    void toggleBacklight() {
        MenuItem* item = &currentMenuTable[cursorPosition];
        if (item->getType() == MENU_ITEM_TOGGLE) {
            lcd->setBacklight(item->isOn);
        }
    }

Replace it to this:

    /**
     * Toggle backlight
     */
    void toggleBacklight() {
        #ifndef USE_STANDARD_LCD
        MenuItem* item = &currentMenuTable[cursorPosition];
        if (item->getType() == MENU_ITEM_TOGGLE) {
            lcd->setBacklight(item->isOn);
        }
        #endif
    }

Other than that, if you get warnings like this:

src/main.cpp:71:53: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   ItemToggle("Alarm", "Yes", "No", cbMenuToggleAlarm),
                                                     ^
src/main.cpp:71:53: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]

You can make the warning go away by modifying the the LcdMenu library. Edit the MenuItem.h file from the LcdMenu library,find this:

    /**
     * @param key key of the item
     * @param textOn display text when ON
     * @param textOff display text when OFF
     * @param callback reference to callback function
     */
    ItemToggle(const char* key, char* textOn, char* textOff, fptrInt callback)
        : MenuItem(key, textOn, textOff, callback, MENU_ITEM_TOGGLE) {}

Replace it to this:

    /**
     * @param key key of the item
     * @param textOn display text when ON
     * @param textOff display text when OFF
     * @param callback reference to callback function
     */
    ItemToggle(const char* key, const char* textOn, const char* textOff, fptrInt callback)
        : MenuItem(key, textOn, textOff, callback, MENU_ITEM_TOGGLE) {}