8. LED Blink
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Solving Approach
Using Arduino Uno on Wokwi, I started with inserting a LED light and the resistor, then I connected GND to the LED, LED to the resistor and lastly the resistor to the GPIO pin 4.
Code
void setup() {
pinMode(4,OUTPUT);
}
void loop() {
digitalWrite(4,HIGH);
delay(400);
digitalWrite(4,LOW);
delay(800);
}
Output
Video
Photo of Output
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