September 2024
Intermediate to advanced
798 pages
18h 56m
German
Content preview from Arduino Kochbuch, 3. Auflage
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Einfache drahtlose Kommunikation
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14.0 Einleitung
Die Fähigkeit des Arduino, mit der Welt zu interagieren, ist wunderbar, aber manchmal möchtest du vielleicht auch aus der Ferne mit deinem Arduino kommunizieren, ohne Kabel und ohne den Overhead einer vollständigen TCP/IP-Netzwerkverbindung. In diesem Kapitel geht es um einfache Funkmodule für Anwendungen, bei denen niedrige Kosten im Vordergrund stehen, sowie um funktionsreiche Optionen wie die vielseitigen XBee-Funkmodule und Bluetooth.
Einfache Packet-Radio-Module wie das RFM69HCW ermöglichen eine sichere, zuverlässige Kommunikation zwischen Geräten. XBee bietet flexible drahtlose Funktionen für den Arduino, aber genau diese Flexibilität kann verwirrend sein. In diesem Kapitel findest du Beispiele, die vom einfachen "drahtlosen Ersatz der seriellen Schnittstelle" bis zu Mesh-Netzwerken reichen, die mehrere Boards mit mehreren Sensoren verbinden.
Bluetooth Classic und Bluetooth Low Energy sind beliebte Optionen für die Verbindung mit Computern und Handys. Da diese Geräte heutzutage in der Regel über Bluetooth verfügen, bietet es eine bequeme Möglichkeit, eine drahtlose Verbindung herzustellen, ohne dass du zusätzliche spezielle Hardware an deinem Telefon oder Computer benötigst.
14.1 Nachrichten mit preisgünstigen Funkmodulen verschicken
Problem
Du willst mit preiswerter Hardware Daten zwischen ...
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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.