arduino/bomba-ledtest/bomba-ledtest.ino

   1 #include <LedControl.h>
   2
   3 LedControl lc=LedControl(16,14,15,2); //datain, clk, load, number of chips
   4
   5 /* we always wait a bit between updates of the display */
   6 unsigned long delaytime=250;
   7
   8 void setup() {
   9   /*
  10    The MAX72XX is in power-saving mode on startup,
  11    we have to do a wakeup call
  12    */
  13   lc.shutdown(0,false);
  14   /* Set the brightness to a medium values */
  15   lc.setIntensity(0,15); //0 - 15
  16   /* and clear the display */
  17   lc.clearDisplay(0);
  18 }
  19
  20
  21 /*
  22  This method will display the characters for the
  23  word "Arduino" one after the other on digit 0.
  24  */
  25 void writeArduinoOn7Segment() {
  26   lc.setChar(0,0,'a',false);
  27   delay(delaytime);
  28   lc.setRow(0,0,0x05);
  29   delay(delaytime);
  30   lc.setChar(0,0,'d',false);
  31   delay(delaytime);
  32   lc.setRow(0,0,0x1c);
  33   delay(delaytime);
  34   lc.setRow(0,0,B00010000);
  35   delay(delaytime);
  36   lc.setRow(0,0,0x15);
  37   delay(delaytime);
  38   lc.setRow(0,0,0x1D);
  39   delay(delaytime);
  40   lc.clearDisplay(0);
  41   delay(delaytime);
  42 }
  43
  44 /*
  45   This method will scroll all the hexa-decimal
  46  numbers and letters on the display. You will need at least
  47  four 7-Segment digits. otherwise it won't really look that good.
  48  */
  49 void scrollDigits() {
  50   for(int i=0;i<13;i++) {
  51     lc.setDigit(0,7,i,false);
  52     lc.setDigit(0,6,i+1,false);
  53     lc.setDigit(0,5,i+2,false);
  54     lc.setDigit(0,4,i+3,false);
  55     lc.setDigit(0,3,i+4,false);
  56     lc.setDigit(0,2,i+5,false);
  57     lc.setDigit(0,1,i+6,false);
  58     lc.setDigit(0,0,i+7,false);
  59     delay(delaytime);
  60   }
  61   lc.clearDisplay(0);
  62   delay(delaytime);
  63 }
  64
  65 void loop() {
  66   writeArduinoOn7Segment();
  67   scrollDigits();
  68 }