binarni hodiny

[Jan Waclawek]

lubos melichar wrote:
> postavil sem si binarni hodiny, zatim na bastl desce (jsou taky treba 
> tady http://www.thinkgeek.com/homeoffice/lights/59e0/)
> pomoci x51..preruseni po 10ms, kazde ste preruseni(to jest 1 vterina) 
> zmena LED...
> hodiny se mi vsak docela PREDCHAZEJI..po trech hodinach priblizne o pul 
> vteriny..
> nevite proc..? jaka byva presnost krystalu?

bezne 50-100ppm, ste v norme (asi 45ppm)

wek