Connecting an LED with RPZ and controlling it using C, Python, and a shell

Note

Finally, some real hardware! This is truly the Hello World of the Internet of Things, but it is a great place to get started if you've never worked with circuits and sensors. Some basic electronics knowledge is quite helpful here. For resistor color codes, there is a great chart and calculator available on Digi-Key (http://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-resistor-color-code-4-band). To understand polarity, which is important for working with diodes and capacitors, Sparkfun has a great tutorial, available here: https://learn.sparkfun.com/tutorials/polarity

Getting ready

Here is where you will need some real hardware. I recommend ...

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