the device either does not recognize the SD card or the web portal is not recognizing the content. Unable to load sounds via the enter key command instructed either. unable to save settings in the web portal. *upon clicking save, nothing changes.

• Add a settings menu option to play sounds/music from the SD card if mp3 files are detected.
• Set a sound to play if a GPIO is pulled high. 13 and 14 have headers on the control board.

By using a "fake" year, it is pretty straight forward to use presentTime as a normal clock:

In tc_time.cpp, replace timeTravel with the following:

/* Time Travel: User enters a destination time.
 *  
 *  -) copy present time into departed time (where it freezes)
 *  -) copy destination time  to present time (where it continues to run as a clock)
 *
 *  This is called from tc_keypad.cpp 
 */

void timeTravel() {
    int tyr = 0;
    int tyroffs = 0;
        
    timetravelNow = millis();
    timeTraveled = true;
    beepOn = false;
    play_file("/timetravel.mp3", getVolume());
    allOff();

    // Copy present time to last time departed
    departedTime.setMonth(presentTime.getMonth());
    departedTime.setDay(presentTime.getDay());
    departedTime.setYear(presentTime.getYear());
    departedTime.setHour(presentTime.getHour());
    departedTime.setMinute(presentTime.getMinute());
    departedTime.save();

    // Copy destination time to present time
    // DateTime does not work before 2000 or after 2159
    // so we use yearOffs to fake a year with identical calendar within 2000-2159
    // RTC keeps running on 2000-2159, but display is skewed by yearOffs
    // upper limit 2150 to avoid overflow while clock running

    tyr = destinationTime.getYear();
    if (tyr < 2000) {
        while(tyr < 2000) {
            tyr += 28;
            tyroffs += 28;
        }
    } else if(tyr > 2150) {
        while(tyr > 2150) {
            tyr -= 28;
            tyroffs -= 28;
        }
    }
    
    if (!presentTime.isRTC()) presentTime.setRTC(true);
    
    presentTime.setYearOffset(tyroffs);
    
    rtc.adjust(DateTime(
            tyr,
            destinationTime.getMonth(),
            destinationTime.getDay(),
            destinationTime.getHour(),
            destinationTime.getMinute()
            )
    );

    Serial.println("timeTravel: Success, good luck!");
}

In clockdisplay.cpp:

void clockDisplay::setYear(uint16_t yearNum) {
    // Place LED pattern in year position in buffer, which is 4 and 5.
    _year = yearNum;
    yearNum -= _yearoffset;
    _displayBuffer[4] = makeNum(yearNum / 100);
    _displayBuffer[5] = makeNum(yearNum % 100);
}

void clockDisplay::setYearDirect(uint16_t yearNum) {
    // Place LED pattern in year position directly, which is 4 and 5.
    // useful for setting the year to the present time
    _year = yearNum;
    yearNum -= _yearoffset;
    directCol(4, makeNum(yearNum / 100));
    directCol(5, makeNum(yearNum % 100));
}

void clockDisplay::setYearOffset(int16_t yearOffs) {
    _yearoffset = yearOffs;
}

In clockdisplay.h add the marked lines:

    void setYear(uint16_t yearNum);
    void setYearOffset(int16_t yearOffs); // <----
    void setYearDirect(uint16_t yearNum);

[...]

    uint16_t _displayBuffer[8];  // Segments to make current time.

    uint16_t _year = 2021;     // keep track of these
    int16_t  _yearoffset = 0;  // Offset for faking years < 2000 or > 2159 <----
    
    uint8_t _month = 1;

I possibly omitted other definitions/declarations needed, but these are straight forward.

The RTC is loaded with a year with an identical calendar (as apparently happens every 28 years), and the year displayed is faked by _yearoffset.

Currently the web interface has fields for:

• Beep Sound
• NTP Time Server
• Brightness per display

Currently these are placeholders and do not affect anything. They need to be tied into the actual variables that control these parameters. Web interface variables are defined in tc_wifi.cpp

I keep getting the following error when I try to compile the sketch and program the board. I can see the file in ...software/src/timecircuits and its open in a tab in IDE but for some reason it keeps fizzing out on me.... Any help please?? :-) Thanks!

tc_wifi.h:23:26: fatal error: clockdisplay.h: No such file or directory compilation terminated. exit status 1 clockdisplay.h: No such file or directory

New user so apologies if this is not the right area...

But can you please explain what you mean in the README instructions for the keypad_body where you say "...with top perpendicular to bed."? By the rest of the instructions I assume you mean to print key side up (back of body laying flat on the bed) so the front exposed surface can be ironed. But you also say 'iron top surface' so I assume you mean the side facing out with the keys vs the top of the body (which is attached to the bottom of the display enclosure). So if that is correct, then the top of the body is perperpendicular to the bed while the face is parallel, correct??? Its just that it seems the word "top" is used twice referring to 2 different surfaces and that is what is confusing me.

Sorry if that seems obvious and I am over-thinking it but it just got me a little confused.

Thanks!

Update to v2 of software. Includes a lot of new features and bug fixes, including:

New Functionality:

• Added alarm functionality (enable by holding down "1", disable by holding "2")
• 24 hour mode added
• New Keypad menu for adjusting various settings
• Configurable WiFi connection timeouts and retries
• Return from Time Travel (hold "9" for 2 seconds)
• Support for time zones and automatic DST
• "present time" now functions as a clock (not stale) after time travel
• Added incorrect date sound
• Selectable "persistent" time travel mode (any changed dates are stored in memory upon reset, otherwise they will rotate preset times from the movie, and display the real time on reset)
• Added night mode (enable by holding "4", disable by holding "5")
• An SD card can now be inserted so custom sounds are played
• Added ability to trigger a time travel event (pull io14 low)
• Added "fake power on" and off facility (TCD will boot, setup WiFi, sync time with NTP, but not start displays until an active-low button is pressed connected to io13)
• Show "BATT" during booting if RTC battery is depleted and needs to be changed
• Sounds cleaned up, volume normalized, and updated

Bug fixes:

• More stable sound playback
• Fix for flakey i2c connection to RTC (check data and retry)
• Fix "animation" (ie. month displayed a tad delayed)
• Integrate a modified Keypad_I2C into the project in order to fix the "ghost" key presses
• After a time travel, entering a new date now works correctly

If I am not mistaken, the hardware RTC expects the month in the range from 1 to 12, not 0 to 11. TimeInfo, however, uses 0-11, so month needs to incremented before storing in getNTPTime().

Consequently, in clockDisplay::setMonth, the decrement of monthNum must be done regardless of isRTC.

Just some ideas:

• Set time from web interface or from settings menu
• Can be turned on or off by holding down a button on the keypad
• Sound from sd card can be chosen to play as the alarm via web interface
• Alarm can be turned off by pressing any button on the keypad

In order to add some additional effect to the time traveling:

• Turn random displays on and off and random rates
• Dim random displays at random amounts
• Scramble different displays at random
• Combo of all 3, where a display can turn off, come back on at a dim level, all segments turn on, then back into a number, etc.
• Turn enter button led on and off at random

Currently only the present time is updated via the settings menu. Hitting enter after the min field should go to the next display, then other mis settings, then SAVE Need to fix/add:

• last time departed
• brightness per display
• Add beep on/off (the tone that sounds in sync with the second leds)
• Add wifi on/off (to get NTP time)

With the audio mixer library being used, there is a way to play 2 sounds at once, but it currently does not work. It may be necessary to not play the beep sound when a keypad tone or time travel sound is played. So...

• the beep sound only plays if other sounds are not played, and the beep option is turned on
• the beep sound should be played softer than other sounds as to not be totally annoying