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build/shared/examples/07.Display/RowColumnScanning/RowColumnScanning.ino

@@ -1,23 +1,23 @@
 /*
   Row-Column Scanning an 8x8 LED matrix with X-Y input
- 
+
  This example controls an 8x8 LED matrix using two analog inputs
- 
+
  created 27 May 2009
  modified 30 Aug 2011
  by Tom Igoe
- 
- This example works for the Lumex  LDM-24488NI Matrix. See 
+
+ This example works for the Lumex  LDM-24488NI Matrix. See
  http://sigma.octopart.com/140413/datasheet/Lumex-LDM-24488NI.pdf
  for the pin connections
- 
- For other LED cathode column matrixes, you should only need to change 
+
+ For other LED cathode column matrixes, you should only need to change
  the pin numbers in the row[] and column[] arrays
- 
+
  rows are the anodes
  cols are the cathodes
  ---------
- 
+
  Pin numbers:
  Matrix:
  * Digital pins 2 through 13,
@@ -25,25 +25,27 @@
  Potentiometers:
  * center pins are attached to analog pins 0 and 1, respectively
  * side pins attached to +5V and ground, respectively.
- 
+
  This example code is in the public domain.
- 
+
  http://www.arduino.cc/en/Tutorial/RowColumnScanning
- 
+
  see also http://www.tigoe.net/pcomp/code/category/arduinowiring/514 for more
  */
 
 
 // 2-dimensional array of row pin numbers:
 const int row[8] = {
-  2,7,19,5,13,18,12,16 };
+  2, 7, 19, 5, 13, 18, 12, 16
+};
 
 // 2-dimensional array of column pin numbers:
 const int col[8] = {
-  6,11,10,3,17,4,8,9  };
+  6, 11, 10, 3, 17, 4, 8, 9
+};
 
 // 2-dimensional array of pixels:
-int pixels[8][8];           
+int pixels[8][8];
 
 // cursor position:
 int x = 5;
@@ -54,11 +56,11 @@ void setup() {
   // iterate over the pins:
   for (int thisPin = 0; thisPin < 8; thisPin++) {
     // initialize the output pins:
-    pinMode(col[thisPin], OUTPUT); 
-    pinMode(row[thisPin], OUTPUT);  
+    pinMode(col[thisPin], OUTPUT);
+    pinMode(row[thisPin], OUTPUT);
     // take the col pins (i.e. the cathodes) high to ensure that
-    // the LEDS are off: 
-    digitalWrite(col[thisPin], HIGH);    
+    // the LEDS are off:
+    digitalWrite(col[thisPin], HIGH);
   }
 
   // initialize the pixel matrix:

build/shared/examples/07.Display/barGraph/barGraph.ino

@@ -1,22 +1,22 @@
 /*
   LED bar graph
- 
+
   Turns on a series of LEDs based on the value of an analog sensor.
   This is a simple way to make a bar graph display. Though this graph
   uses 10 LEDs, you can use any number by changing the LED count
   and the pins in the array.
-  
+
   This method can be used to control any series of digital outputs that
   depends on an analog input.
- 
+
   The circuit:
    * LEDs from pins 2 through 11 to ground
- 
+
  created 4 Sep 2010
- by Tom Igoe 
+ by Tom Igoe
 
  This example code is in the public domain.
- 
+
  http://www.arduino.cc/en/Tutorial/BarGraph
  */
 
@@ -25,14 +25,15 @@
 const int analogPin = A0;   // the pin that the potentiometer is attached to
 const int ledCount = 10;    // the number of LEDs in the bar graph
 
-int ledPins[] = { 
-  2, 3, 4, 5, 6, 7,8,9,10,11 };   // an array of pin numbers to which LEDs are attached
+int ledPins[] = {
+  2, 3, 4, 5, 6, 7, 8, 9, 10, 11
+};   // an array of pin numbers to which LEDs are attached
 
 
 void setup() {
   // loop over the pin array and set them all to output:
   for (int thisLed = 0; thisLed < ledCount; thisLed++) {
-    pinMode(ledPins[thisLed], OUTPUT); 
+    pinMode(ledPins[thisLed], OUTPUT);
   }
 }
 
@@ -48,10 +49,10 @@ void loop() {
     // turn the pin for this element on:
     if (thisLed < ledLevel) {
       digitalWrite(ledPins[thisLed], HIGH);
-    } 
+    }
     // turn off all pins higher than the ledLevel:
     else {
-      digitalWrite(ledPins[thisLed], LOW); 
+      digitalWrite(ledPins[thisLed], LOW);
     }
   }
 }