Project 2 - Potentiometer with Led

Project 2 – Pentiometer with LED

The blue knob in the back is the potentiometer

We modified our first project to include a potentiometer, which we used to control the blink rate of the LED instead of the program we wrote.

Hardware concepts we learned were:

• ·         How a pentiotiometer can control the voltage to the output.
• ·         The difference between an Analog and Digital output

Programming concepts we learned were:

• ·         What a variable is and how to declare and use them
• ·         Using different data types (Int)
• ·         How to read an analog input with analogRead

Our Program-  The delay function is linked to the value coming from the potentiometer, so the more we turn the knob, the faster it blinks.

int sensorPin = 0  

int ledPin = 13

void setup()

{ pinMode(ledPin, OUTPUT)}

void loop()

{ int sensorValue

  sensorValue = analogRead(sensorPin)

  digitalWrite(ledPin, HIGH

  delay(sensorValue)

    digitalWrite(ledPin, LOW)

  delay(sensorValue)}