LED Blink

Solving Approach

How do you plan to solve it?

 Arduino output: 5V

 LED = 2V

Required current: 10mA converrt to 0.01A

Resistor needed: R = (5V - 2V) / 0.01A = 300Ω
 

Code

/*Paste your code here*/
void setup() {
    pinMode(13, OUTPUT);
    }
    void loop() {
        digitalWrite(13, HIGH);
            delay(400);
                digitalWrite(13, LOW);
                    delay(800);
                    }

Output

Video

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Photo of Output

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