Next Steps
You’ve learned how to work with digital and analog sensors, and you’ve learned how to control SPI devices. The Pi also supports I2C,[125] which is another popular standard for connecting devices. It’s certainly a good idea to look at it.
If you’d like to build more ambitious projects, you should consider buying an extension board for the Pi. For example, the Adafruit Prototyping Pi Plate[126] makes prototyping much easier. The Gertboard[127] makes prototyping even safer, and it comes with a lot of nice features, too.
Footnotes
| [115] |
Search for product number 910-28027 at http://www.parallax.com/ |
| [116] | |
| [117] |
At http://www.ladyada.net/learn/sensors/pir.html, you’ll find an excellent ... |
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