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![Raspberry Pi's GPIO - Python Programming with Raspberry Pi [Book]](https://www.oreilly.com/api/v2/epubs/9781786467577/files/assets/image_02_010.png "Raspberry Pi's GPIO - Python Programming with Raspberry Pi [Book]")
Raspberry Pi's GPIO - Python Programming with Raspberry Pi [Book]
Introduction to the Raspberry Pi GPIO and Physical Computing - SparkFun Learn
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Simple Guide to the Raspberry Pi GPIO Header - Raspberry Pi Spy
