Stationary Text with timer and a varying distance

[canulker]

Hello there, we are trying to show the distance we are measuring on the monitor. Aside from that we have a crossair and a time indicator. The following code was working very fine until I merged it with the code of the rangefinder. Then I uploaded this code to the arudino again but now I get nothing. What am I doing wrong? Thank you for your help.

#include “TVout.h”
#include “fontALL.h”

TVout TV;

unsigned long t;
int s=0;
int m=0;
int h=0;

void setup()
{
TV.begin(PAL,128,96);
initOverlay();
TV.select_font(font4x6);

}

// Initialize ATMega registers for video overlay capability.
// Must be called after tv.begin().
void initOverlay() {
TCCR1A = 0;
// Enable timer1. ICES0 is set to 0 for falling edge detection on input capture pin.
TCCR1B = _BV(CS10);

// Enable input capture interrupt
TIMSK1 |= _BV(ICIE1);

// Enable external interrupt INT0 on pin 2 with falling edge.
EIMSK = _BV(INT0);
EICRA = _BV(ISC01);
}

// Required to reset the scan line when the vertical sync occurs
ISR(INT0_vect) {
display.scanLine = 0;

// Crossair
TV.draw_line(66,47,66,52,1);
TV.draw_line(66,56,66,61,1);
TV.draw_line(59,54,65,54,1);
TV.draw_line(68,54,74,54,1);
}

void loop()
{
//Timer
t=millis()/1000;
s=t-(h*3600+m*60);
if (s==60)
{ s=s-60;
m=m+1;}
if (m==60)
{m=0;
h=h+1;}
TV.set_cursor(0,6);
if (h<10) //<——————– YA DA BU PRINTLERDE
TV.print(0);
TV.print(h);
TV.print(“:”);
if (m<10)
TV.print(0);
TV.print(m);
TV.print(“:”);
if (s<10)
TV.print(0);
TV.print(s);

//Distance

TV.set_cursor(105,6);
// TV.print(sf10_string);
TV.print(” m”);

//Zoom
TV.set_cursor(55,6);
TV.print(“Zoom: ?”);
delay(500);

}

[Michael]

You are drawing your crosshair in the ISR(INT0_vect) interrupt handler. I do not think you should be doing that. All your drawing should be in loop(). Should the crosshair drawing be at the beginning of loop()?

[Author]

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