IDeATe

Outcome

For this exercise, I learned how to use some basic sensors and resistors as inputs to control the output. And I use potentiometers and force sensors to control the lightness of an LED light.

Process

Exercise 1:
For this exercise, I try to use potentiometers as an input to vary the brightness of a LED light.

// Define a pin that we'll place the pot on
int potPin = A2;

// Create a variable to hold the pot reading
int potReading = 0;

// Define a pin we'll place an LED on
int ledPin = D6;

// Create a variable to store the LED brightness.
int ledBrightness = 0;

//
void setup(){

  // Set up the LED for output
  pinMode(ledPin, OUTPUT);

  // Create a cloud variable of type integer
  // called 'light' mapped to photoCellReading
  Spark.variable("pot", potReading );
}

void loop() {

  // Use analogRead to read the potentiometer reading
  // This gives us a value from 0 to 4095
  potReading = analogRead(potPin);

  // Map this value into the PWM range (0-255)
  // and store as the led brightness
  ledBrightness = map(potReading, 0, 4095, 0, 255);

  // fade the LED to the desired brightness
  analogWrite(ledPin, ledBrightness);

  // wait 1/10th of a second and then loop
  delay(100);
}

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Exercise 2:

For the second exercise, I use both a force sensor and a potentiometers to vary the LED light.

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// Define a pin that we'll place the photo cell on
// Remember to add a 10K Ohm pull-down resistor too.
int fsrPin = A2;

// Create a variable to hold the light reading
int fsrReading = 0;

// Define a pin we'll place an LED on
int ledPin = D6;

// Create a variable to store the LED brightness.
int ledBrightness = 0;

int potentiometerPin = A4;

int fsrReading = 0;

void setup()
{
  // Set up the LED for output
  pinMode(ledPin, OUTPUT);

}

void loop()
{
  // Use analogRead to read the photo cell reading
  // This gives us a value from 0 to 4095
  fsrReading = analogRead(fsrPin);

  
  
  potenReading = analogRead(potentiometerPin);
  
  if (potenReading < 2000){
  
  analogWrite(ledPin,LOW);
  }else{
      // Map this value into the PWM range (0-255)
      // and store as the led brightness
      ledBrightness = map(fsrReading, 0, 4095, 0, 255);
    
      // fade the LED to the desired brightness
      analogWrite(ledPin, ledBrightness);
    
      // wait 1/10th of a second and then loop
      delay(100);
      
      delay(100);
  }
}

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Outcome

Outcome

Process

Exercise 1:
For this exercise, I try to use potentiometers as an input to vary the brightness of a LED light.

Attribution

Attribution

Exercise 2:

Attribution

Attribution

Outcome

Outcome

Process

Exercise 1:For this exercise, I try to use potentiometers as an input to vary the brightness of a LED light.

Attribution

Attribution

Exercise 2:

Attribution

Attribution

Exercise 1:
For this exercise, I try to use potentiometers as an input to vary the brightness of a LED light.