Arduino basics controlling an led

the first connection is to just make the led glow using the 220 oh resistors, led, male to male jumper wire, and a breadboard

i am also giving the code below

// the setup function runs once when you press reset or power the board

void setup() {

// initialize digital pin LED_BUILTIN as an output.

pinMode(LED_BUILTIN, OUTPUT);

}

// the loop function runs over and over again forever

void loop() {

digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)

delay(1000); // wait for a second

digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW

delay(1000); // wait for a second

}

NEXT, WE WILL DO THE FADING OF LED

this is the fade diagram connection the code is given below

int led = 9; // the PWM pin the LED is attached to

int brightness = 0; // how bright the LED is

int fadeAmount = 5; // how many points to fade the LED by

// the setup routine runs once when you press reset:

void setup() {

// declare pin 9 to be an output:

pinMode(led, OUTPUT);

}

// the loop routine runs over and over again forever:

void loop() {

// set the brightness of pin 9:

analogWrite(led, brightness);

// change the brightness for next time through the loop:

brightness = brightness + fadeAmount;

// reverse the direction of the fading at the ends of the fade:

if (brightness <= 0 || brightness >= 255) {

fadeAmount = -fadeAmount;

}

// wait for 30 milliseconds to see the dimming effect

delay(30);

}

please check out my video for more explanation