LED Blink

Solving Approach

How do you plan to solve it?

by using arduino on wokwi and when getting to make sure that around 10mA of current flows through the LED:

assuming the LED forward voltage drop=2v and the supply voltage is= 5

2-5= 3V

10mA will be  0.01A

using the formula ohms law VR/I: 3V/0.01 = 300Ω/ohms

Code

/*Paste your code here*/
void setup() {
  pinMode(3, OUTPUT);
}

void loop() {
  digitalWrite(3, HIGH);
  delay(400);
  digitalWrite(3, LOW);
  delay(800);
}

Output

by configuring the LED pin as output so we can drive it HIGH/LOW.

-Turn LED ON = wait 400 ms

-Turn LED OFF →=wait 800 ms

The delays define the ON and OFF durations exactly.

Video

Add video of the output (know more)

Photo of Output

Add a photo of your hardware showing the output.