Led blinking using arduino (4 Examples) with code, circuit and video
The LED blinking project using Arduino is the simplest program that you should run to to test whether your Arduino is working and configured correctly. []
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Getting Started with the Arduino - Controlling the LED (Part 1)
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Physical Computing Using Arduinos: Making LEDs Blink and Fade - Activity - TeachEngineering
Arduino Lesson 3: For Loops for Simple LED Circuit