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nodo-domotica.nl • Toon onderwerp - LDR geeft een 0 waarde - Afdrukweergave
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LDR geeft een 0 waarde
http://www.nodo-domotica.nl/forum/viewtopic.php?f=4&t=143
Pagina 1 van 1
Auteur:  bunny007 [ 22 dec 2011, 10:22 ]
Titel:  LDR geeft een 0 waarde

Hoi,

Ik probeer een LDR werkend te krijgen zoals beschreven staat in "7.2 Lampen automatisch schakelen als het donker wordt" nu heb ik de LDR aangesloten op de 1e analoge poort met 1 pootje het andere pootje op de massa (0) maar nu krijg ik alleen maar een waarde 0, zou het wellicht kunnen zijn dat het iets verkeerd beschreven staat en dat 1 pootje in de analog a0 moet (eerste vrije analoge poort) en de andere op de +5v moet ?

Heb een arduino mega 2560, met losse componenten eromheen. (rf/ir-recieve/speaker), zowel in EventGhost als de Nodo beheer tool krijg ik deze 0 waarde. Heb ook al een andere vrije analoge poort gebruikt maar daar ook de waarde 0
Auteur:  kabouter [ 22 dec 2011, 14:20 ]
Titel:  Re: LDR geeft een 0 waarde

Auteur:  bunny007 [ 22 dec 2011, 18:53 ]
Titel:  Re: LDR geeft een 0 waarde

Dank je wel kabouter, had al het vermoeden dat ik wat mis deed.

Maar ik heb hem nu aangesloten met een 10K weerstand zoals op het schema staat en nu doet hij het, dank je wel !

Afbeelding
Auteur:  Paul [ 22 dec 2011, 21:53 ]
Titel:  Re: LDR geeft een 0 waarde

Dan nog een tip, de Nodo berekent aan de hand van datum/tijd de momenten van zonsopgang en -ondergang. Daar kan je ook mee schakelen. Niet zo comfortabel als feitelijke lichtmeting, maar de Nodo mag dan in de meterkast blijven liggen.
Pagina 1 van 1 Alle tijden zijn GMT + 1 uur