April 2017
Beginner to intermediate
312 pages
7h 23m
English
Content preview from Python Programming with Raspberry Pi
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Raspberry Pi's GPIO
The Raspberry Pi Zero comes with a 40-pin GPIO header. Out of these 40 pins, we can use 26 pins either to read inputs (from sensors) or control outputs. The other pins are power supply pins (5V, 3.3V, and Ground pins):
Raspberry Pi Zero GPIO mapping (source: https://www.raspberrypi.org/documentation/usage/gpio-plus-and-raspi2/README.md)
We can use up to 26 pins of the Raspberry Pi's GPIO to interface appliances and control them. But, there are certain pins that have an alternative function, which will be discussed in the later chapters.
The earlier image shows the mapping of the Raspberry Pi's GPIO pins. The numbers in ...
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