Module 3b: Basics in Pseudocode


Module 3b: Basics in Pseudocode

Goal of this Module: Gain an Understanding of Pseudocode
Module 3b: Basics in Pseudocode Document Download

Module: Basics in Pseudocode Lesson 
What is Programming
  
 
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Pseudocode

  
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Pseudocode

 
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Breakdown

 
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/* 
Adapted from
http://playground.arduino.cc/Learning/PhotoResistor
Simple test of the functionality of the photo resistor

Connect the photoresistor one leg to pin 0, and pin to +5V
Connect a resistor (around 10k is a good value, higher
values gives higher readings) from pin 0 to GND. 

----------------------------------------------------

           PhotoR     10K
 +5     o---/\/\/--.--/\/\/---o GND
                   |
 Pin A0 o-----------

----------------------------------------------------
*/

int lightPin = A0;  //define a pin for Photo resistor (input)
int ledPin = 13; // the pin for the led (output)

void setup()
{
    Serial.begin(9600);  //Begin serial communication
    pinMode( lightPin, INPUT );
    pinMode( ledPin, OUTPUT );
}

void loop()
{
    int lightValue = analogRead( lightPin );
    Serial.println( lightValue ); //Write the value of the photoresistor to the serial monitor.

    // if there is not enough light
    if ( lightValue < 400 )
       // turn on the LED
       digitalWrite( ledPin, HIGH );
    else
       // otherwise, turn it off
       digitalWrite( ledPin, LOW );

    delay(10); //short delay for faster response to light
}
	

Breakdown

 
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