Task#2___Control brightness of a LED by using a variable resistance

The objective of the task is to control the brightness of a LED by a variable resistance like below.

        - Input: 1 pin for a variable resistance

        - Output: 1 pin for three LED 

• Making 

• Circuit board     

We should know about PWM for map() function first for make to easy to build.

• Coding

                    int pinled = 11;

                    int pinPotentiometer = 0;

                    int valueA0 = 0;

                    void setup() {

                     pinMode(pinled, OUTPUT);

                    }

                    void loop() {

                     valueA0 = analogRead(pinPotentiometer);

                     valueA0 = map(valueA0,0,1023,0,255);

                     analogWrite(pinled, valueA0);

                    } 

 //Prepared by Rothny

 // lead by Dr. Kwanghoon Kim