June 2021
Intermediate to advanced
168 pages
3h 1m
German
Content preview from Raspberry Pi Pico -- Schnelleinstieg
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Kapitel 5Analoge Welt
Mit dem im Pico integrierten Analog/Digital-Wandler (ADC) können externe Spannungen im Bereich von 0 bis 3,3 V gemessen werden. Die analogen Signale können von externen Sensoren, einem Potentiometer oder einer externen Messschaltung auf den Pico geführt werden. Für eine Spannungsmessung muss somit keine externe Elektronik am Raspberry Pi Pico angeschlossen werden.
Der Pico besitzt fünf analoge Eingänge. Es sind aber nur drei Kanäle auf die Pins GP26, GP27 und GP28 geführt. Die beiden restlichen Kanäle werden intern für die Messung der Spannung am Pin VSYS und für den Chip-internen Temperatursensor verwendet.
Die Auflösung der internen Analog/Digital-Wandler beträgt 12 Bit. Dies bedeutet einen Messbereich von 0 bis 4095. ...
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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.