Summary of Arduino Hello World Blink Code
This article explains a basic Arduino project that blinks an LED on and off repeatedly with a 1-second interval. The LED's cathode is connected to the Arduino ground pin, and the anode is connected to digital pin 13. The provided code sets pin 13 as an output in the setup function and then continuously turns the LED on and off with a one-second delay in the loop function, demonstrating simple Arduino control of an LED.
Parts used in the Arduino LED Blink Project:
- 1x 5mm red LED
- 1x Arduino
This is a basic example how arduino works. In this arduino projects you’ll see how arduino control LED on for 1 second and off for 1 second repeatedly.
Instruction;
1) Connect cathode lead of LED (shorter lead) to ground pin and anode lead of LED (longer lead) to pin 13.
Upload this code to your arduino
/*
Blink
Turns on an LED on for one second, then off for one second, repeatedly.This example
code is in the public domain.
Code hosted at: arduinoprojects101.com
*/
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
}There is 2 section of code arduino running, first setup() function which run once and second loop() function running continuously.
In setup function pinMode 13 declare as OUTPUT.
Major Components in Project
Parts List;
1) 1x 5mm red LED
2) 1x Arduino
1) 1x 5mm red LED
2) 1x Arduino
For more detail: Arduino Hello World Blink Code
