LED Blink

Solving Approach

How do you plan to solve it?

Create the connection of the example by using a R = 320 Ω.

Connect the GND with Arduino UNO's GND and PIN7 with the Resistor. 
 

Code

#define LED 7

void setup() {
  // put your setup code here, to run once:
  pinMode(LED, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(LED, HIGH);
  delay(400);
  digitalWrite(LED, LOW);
  delay(800);
}

Output

Video

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Photo of Output

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