November 2023
Intermediate to advanced
620 pages
12h 37m
German
Content preview from Arduino Praxiseinstieg - Behandelt Arduino UNO R4 und R3
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Kapitel 7: Anzeigen
7.1 Leuchtdiode (LED)
Wie bereits in Kapitel 3 beschrieben, ist die Leuchtdiode eine Diode, die beim Anlegen einer Spannung Licht abgibt. Mit einem Serienwiderstand wird der Stromfluss auf einen fixen Wert begrenzt. Die Durchlassspannung, also der Spannungsabfall über der LED, beträgt je nach verwendetem LED-Typ zwischen 1,5 und 4 Volt. Den genauen Wert können Sie dem Datenblatt der verwendeten Leuchtdiode entnehmen.
![[Bild]](/api/v2/epubs/urn:orm:book:9783747506639/files/Images/buch5_kap7_led_grundschaltung.jpg)
Abb. 7.1: Grundschaltung zur Ansteuerung einer LED
Die Grundschaltung einer Leuchtdiode benötigt nur einen Vorwiderstand (R1). Die Berechnung des nötigen Vorwiderstands erfolgt nach folgender Formel:
Widerstand= ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.