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digistump-avr/libraries/LedControl/examples/LCDemo7Segment/LCDemo7Segment.pde

@@ -0,0 +1,73 @@
+//We always have to include the library
+#include "LedControl.h"
+
+/*
+ Now we need a LedControl to work with.
+ ***** These pin numbers will probably not work with your hardware *****
+ pin 12 is connected to the DataIn 
+ pin 11 is connected to the CLK 
+ pin 10 is connected to LOAD 
+ We have only a single MAX72XX.
+ */
+LedControl lc=LedControl(12,11,10,1);
+
+/* we always wait a bit between updates of the display */
+unsigned long delaytime=250;
+
+void setup() {
+  /*
+   The MAX72XX is in power-saving mode on startup,
+   we have to do a wakeup call
+   */
+  lc.shutdown(0,false);
+  /* Set the brightness to a medium values */
+  lc.setIntensity(0,8);
+  /* and clear the display */
+  lc.clearDisplay(0);
+}
+
+
+/*
+ This method will display the characters for the
+ word "Arduino" one after the other on digit 0. 
+ */
+void writeArduinoOn7Segment() {
+  lc.setChar(0,0,'a',false);
+  delay(delaytime);
+  lc.setRow(0,0,0x05);
+  delay(delaytime);
+  lc.setChar(0,0,'d',false);
+  delay(delaytime);
+  lc.setRow(0,0,0x1c);
+  delay(delaytime);
+  lc.setRow(0,0,B00010000);
+  delay(delaytime);
+  lc.setRow(0,0,0x15);
+  delay(delaytime);
+  lc.setRow(0,0,0x1D);
+  delay(delaytime);
+  lc.clearDisplay(0);
+  delay(delaytime);
+} 
+
+/*
+  This method will scroll all the hexa-decimal
+ numbers and letters on the display. You will need at least
+ four 7-Segment digits. otherwise it won't really look that good.
+ */
+void scrollDigits() {
+  for(int i=0;i<13;i++) {
+    lc.setDigit(0,3,i,false);
+    lc.setDigit(0,2,i+1,false);
+    lc.setDigit(0,1,i+2,false);
+    lc.setDigit(0,0,i+3,false);
+    delay(delaytime);
+  }
+  lc.clearDisplay(0);
+  delay(delaytime);
+}
+
+void loop() { 
+  writeArduinoOn7Segment();
+  scrollDigits();
+}