First Commit

lib/MAX7219/examples/Demo/Demo.ino

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+// Demo of MAX7219 library
+// Author: Nick Gammon
+// Date: 17 March 2015
+
+#include <SPI.h>
+#include <bitBangedSPI.h>
+#include <MAX7219.h>
+
+const byte chips = 1;
+
+// 1 chip, bit banged SPI on pins 6, 7, 8
+MAX7219 display (chips, 6, 7, 8);  // Chips / LOAD / DIN / CLK
+
+void setup ()
+  {
+  display.begin ();
+  display.sendString ("HELLO   _-_-_-_-");
+  delay (2000);
+  display.setIntensity (2);
+  display.sendString ("Lo Light");
+  delay (2000);
+  display.setIntensity (6);
+  }  // end of setup
+
+// scrolling display of all available characters
+void loop ()
+  {
+  char buf [(chips * 8) + 1];
+  for (char i = '0'; i < 'z'; i++)
+    {
+    for (byte j = 0; j < (chips * 8); j++)
+      buf [j] = i + j;
+    buf [chips * 8] = 0;
+    display.sendString (buf);
+    delay (1000);
+    }    // end of for loop
+  }  // end of loop
+