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Arduino uno User Manual

Arduino uno
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In this chapter, you completed your first really complex Arduino project. You
needed a breadboard, LEDs, buttons, resistors, and wires, and you wrote a
nontrivial piece of software to make all the hardware come to life.
More LEDs, Dice, and Cubes
Building binary dice is fun, and its an easy project even for beginners. But what
about the oppositereading real dice? Steve Hoefer
a
has built a dice reader using an
Arduino, and its impressive. He uses five pairs of infrared emitters and receivers to
scan a dies surface. Its a fairly advanced project, and you can learn a lot from it.
Another interesting project is an LED cube: building a cube consisting of LEDs.
b
Its
surprisingly difficult to control more than a few LEDs, but you can produce astonishing
results.
a.
http://grathio.com/2009/08/dice-reader-version-2.html
b.
http://www.instructables.com/id/The-4x4x4-LED-cube-Arduino/
In the next chapter, well write an even more sophisticated program for gen-
erating Morse code. Youll also learn how to create your own Arduino libraries
that you can easily share with the rest of the world.
What If It Doesnt Work?
Dont panic! A lot of things will probably go wrong when you work with
breadboards for the first time. The biggest problem usually is that you didnt
connect parts correctly. It takes some time to find the right technique for
plugging LEDs, wires, resistors, and buttons into the breadboard. You have
report erratum discuss
What If It Doesnt Work? 59
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Arduino uno Specifications

General IconGeneral
Form factorArduino
CertificationRoHS, FC, CE
Processor model-
Processor frequency- MHz
Microcontroller modelATmega328
Microcontroller frequency16 MHz
DC input voltage7-12 V
Operating voltage5 V
DC current per I/O pin40 mA
Flash memory0.032 MB
Maximum internal memory- GB
SRAM (Static Random Access Memory)2 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory)1 KB
Wi-FiNo
Number of analog I/O pins6
Number of digital I/O pins14
Weight and Dimensions IconWeight and Dimensions
Board dimensions53.4 x 68.6 mm

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