Made MD* libraries (Parola, MAX72XX) project specific, to be able to use the newest software version from github.

lib/MD_Parola/examples/Parola_Ambulance/Parola_Ambulance.ino

@@ -0,0 +1,53 @@
+// Demonstrates reversed text (as if on front of an ambulance)
+//
+// MD_MAX72XX library can be found at https://github.com/MajicDesigns/MD_MAX72XX
+//
+
+#include <MD_Parola.h>
+#include <MD_MAX72xx.h>
+#include <SPI.h>
+
+// Define the number of devices we have in the chain and the hardware interface
+// NOTE: These pin numbers will probably not work with your hardware and may
+// need to be adapted
+#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
+#define MAX_DEVICES 8
+
+#define PAUSE_TIME    1000
+#define SCROLL_SPEED  50
+
+#define CLK_PIN   13
+#define DATA_PIN  11
+#define CS_PIN    10
+
+// HARDWARE SPI
+MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
+// SOFTWARE SPI
+//MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);
+
+char *msg[] =
+{
+  "Ambulance",
+  "Emergency",
+};
+
+void setup(void)
+{
+  // initialise the LED display
+  P.begin();
+  P.setZoneEffect(0, true, PA_FLIP_LR);
+}
+
+void loop(void)
+{
+  static uint8_t cycle = 0;
+
+  if (P.displayAnimate())
+  {
+    // set up the string
+    P.displayText(msg[cycle], PA_CENTER, SCROLL_SPEED, PAUSE_TIME, PA_PRINT, PA_NO_EFFECT);
+
+    // prepare for next pass
+    cycle = (cycle + 1) % ARRAY_SIZE(msg);
+  }
+}