Arduino uno User Manual

Figure 6—The Arduino IDE explains syntax errors nicely.
Repair, and Prevent Bugs in Your Code [But09], you can find plenty of useful
advice on this topic.)
Exercises
• Try different blink patterns using more pauses and vary the pause length.
(They don’t necessarily all have to be the same.) Also, experiment with
very short pauses that make the status LED blink at a high frequency.
Can you explain the effect you’re observing?
• Let the status LED output your name in Morse code.
18
18. http://en.wikipedia.org/wiki/Morse_code
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Arduino uno Specifications

General

Form factor	Arduino
Certification	RoHS, FC, CE
Processor model	-
Processor frequency	- MHz
Microcontroller model	ATmega328
Microcontroller frequency	16 MHz
DC input voltage	7-12 V
Operating voltage	5 V
DC current per I/O pin	40 mA
Flash memory	0.032 MB
Maximum internal memory	- GB
SRAM (Static Random Access Memory)	2 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory)	1 KB
Wi-Fi	No
Number of analog I/O pins	6
Number of digital I/O pins	14

Weight and Dimensions

Board dimensions	53.4 x 68.6 mm