Timer not Changing

Hello There,

I have a problem with the library. I have set up a 128x64 display with u8glib. I want it to work as a timer.
In my code I have set the Timer to 999:59:59, but the display just keeps showing 999:59:58. I can confirm, that the Display updates without the Countdown library but just a rand() int.

I have an Arduino Mega 2560

Here's my code:
`#include<CountUpDownTimer.h>
#include "U8glib.h"

U8GLIB_ST7920_128X64 u8g(18, 16, 17, U8G_PIN_NONE);
CountUpDownTimer T(DOWN);

char buf[8];
char buf1[8];
char buf2[8];

void draw(void) {

u8g.setColorIndex(1);
u8g.drawBox(0,0,128,64);
u8g.setColorIndex(0);
// graphic commands to redraw the complete screen should be placed here
u8g.setFont(u8g_font_courB18r);
//u8g.setFont(u8g_font_osb21);

itoa(T.ShowHours(), buf, 10);
u8g.drawStr(3, 40, buf);

u8g.drawStr(45, 40, ":");
itoa(T.ShowMinutes(), buf1, 10);
u8g.drawStr(56, 40, buf1);

u8g.drawStr(85, 40, ":");
itoa(T.ShowSeconds(), buf2, 10);
u8g.drawStr(96, 40, buf2);
}

void setup(void) {
pinMode(13,OUTPUT);
digitalWrite(13,HIGH);
// assign default color value
T.SetTimer(999,59,59);
T.StartTimer();
}

void loop(void) {
T.Timer();
if (T.TimeHasChanged() ){
// picture loop
u8g.firstPage();
do {
draw();
} while( u8g.nextPage() );

// rebuild the picture after some delay
u8g.firstPage();
do {
draw();
} while( u8g.nextPage() );

}
}`

I hope someone can help.

[AndrewMascolo]

The problem is your order. The code is stuck inside here: "do { draw(); // constantly drawing and never updates the timer } "

…

Sent from my iPhone

On Feb 8, 2017, at 9:19 AM, Antonireykern ***@***.***> wrote: do { draw(); }