Blink LED #Learn Arduino

Up from hello world, now we go little bit further to make the LED blinking.

Some material we need:

• Arduino (I am using Arduino UNO)
• LED
• 330 Ohm resistor
• PC/laptop
• Breadboard
• 3 jumperwire
• Data cable from Arduino to PC

This is the code, and it's available on the example of Arduino IDE Software with title "Blink"

	/*
	Blink
	Turns on an LED on for one second, then off for one second, repeatedly.
	This example code is in the public domain.
	*/
	void setup() {
	// initialize the digital pin as an output.
	// Pin 13 has an LED connected on most Arduino boards:
	pinMode(13, OUTPUT);
	}
	void loop() {
	digitalWrite(13, HIGH); // set the LED on
	delay(1000); // wait for a second
	digitalWrite(13, LOW); // set the LED off
	delay(1000); // wait for a second
	}

view raw blink.ino hosted with ❤ by GitHub

"high" means 5V supply and make the LED is ON and
"low" meand 0V supply and make the LED is OFF.

The LED will be ON and OFF repeatedly every 1 second  that's because we put the code on the loop.