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Das Elektroniker-Forum • Thema anzeigen - Phototransistor 3DU5C, max Frequenz

Phototransistor 3DU5C, max Frequenz

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Phototransistor 3DU5C, max Frequenz

Beitragvon Mathias » 23.12.2016, 21:29

Ich will einen 5DU5C an einen Arduino anschliesssen um eine Drehzahl zu messen.
Dabei wird mit einer LED durch eine Lochscheibe gezündet.
Mag der Phototransistor nach, wen ich ihn im 50KHz-Takt abfrage.
Oder ist die Umschalt-Zeit zu lange ?

Der Transistor wird über den Arduino-Port mit digitalRead(?); abgefragt.
Und die 50'000x pro Sekunde.
Mathias
 
Beiträge: 148
Registriert: 14.04.2016, 17:23
Wohnort: Zürcher Oberland

Re: Phototransistor 3DU5C, max Frequenz

Beitragvon Anse » 23.12.2016, 22:44

Anse
 
Beiträge: 1442
Registriert: 09.06.2011, 14:18

Re: Phototransistor 3DU5C, max Frequenz

Beitragvon topas » 24.12.2016, 05:54

So eine ähnliche Antwort gab es hier auch.
topas
 
Beiträge: 3796
Registriert: 16.08.2010, 12:47

Re: Phototransistor 3DU5C, max Frequenz

Beitragvon Anse » 24.12.2016, 14:57

@Mathias, das hier durchlesen: und auch das: .
Da stehen eigentlich nur Selbstverständlichkeiten drin die man kennen sollte.
Anse
 
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Registriert: 09.06.2011, 14:18


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