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Learning BeagleBone by Hunyue Yau

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Chapter 7. Interfacing with the BeagleBone

In the last few chapters, we mostly looked at the software aspects. While the BBB can do a lot by itself, it can do a lot more when connected to other hardware. This chapter will focus on general interfacing of the BeagleBone on a low level. In the next chapter, we will look at standard expansion options on a higher level.

In this chapter, we will cover the following topics:

  • Electrical engineering in a nutshell
  • BeagleBone voltages
  • Expansion headers
  • Transistors
  • LEDs, relays, and switches
  • I2C/SPI
  • Hidden gotchas

Electrical engineering in a nutshell

This chapter is not intended in any way as a substitution for a proper education in electrical engineering! We will go over some of the fundamentals in the context of the ...

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