Now that you have an understanding of where I2C devices are connected to the BBB and how the Linux kernel presents an interface to those devices, it is time to connect an I2C device to the BBB.

As we mentioned in Chapter 1, Introduction to Android and the BeagleBone Black, you will be interfacing with a FRAM chip in this chapter. Specifically, it is a Fujitsu Semiconductor MB85RC256V FRAM chip. This 8-pin chip provides 32 KB of nonvolatile storage. This particular chip is only available in a small outline package (SOP), which is a surface mount chip that can be difficult to work with when building prototype circuits. Luckily for us, the AdaFruit breakout board for the FRAM already has the chip mounted, which makes prototyping simple and easy.