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Designing Circuit Boards with EAGLE: Make High-Quality PCBs at Low Cost by Matthew Scarpino

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Chapter 14. Schematic Design for the BeagleBone Black

Chapter 4, “Designing the Femtoduino Schematic,” through Chapter 7, “Generating and Submitting Output Files,” presented the Femtoduino, the smallest circuit in the Arduino family of circuit boards. Arduino circuits provide many advantages including low cost, ease of programming, and a wealth of online support. For these reasons, they’re ideal for students, hobbyists, and entrepreneurs in need of simple, reliable circuits.

But when it comes to serious data processing, circuits like the Femtoduino aren’t even close to the state of the art. The Femtoduino’s microcontroller, the ATMega328P, has an 8-bit processor that runs at 20MHz and has 32kB of Flash memory. In contrast, the latest microcontroller ...

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