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arduino-cli/libraries/MD_Parola/examples/Parola_Zone_Display/Parola_Zone_Display.ino

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+// Program to demonstrate the MD_Parola library
+//
+// For every string defined by pc[] iterate through all combinations
+// of entry and exit effects in each zone independently.
+//
+// Animation speed can be controlled using a pot on pin SPEED_IN
+//
+// NOTE: MD_MAX72xx library must be installed and configured for the LED
+// matrix type being used. Refer documentation included in the MD_MAX72xx
+// library or see this link:
+// https://majicdesigns.github.io/MD_MAX72XX/page_hardware.html
+//
+
+#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 MAX_DEVICES 9
+#define MAX_ZONES 3
+
+#define CLK_PIN   13
+#define DATA_PIN  11
+#define CS_PIN    10
+
+// set to 1 if we are implementing the user interface pot
+#define USE_UI_CONTROL  0
+
+#if USE_UI_CONTROL
+#define SPEED_IN  A5
+#endif // USE_UI_CONTROL
+
+// Hardware SPI connection
+MD_Parola P = MD_Parola(CS_PIN, MAX_DEVICES);
+// Arbitrary output pins
+// MD_Parola P = MD_Parola(DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);
+
+#define SPEED_TIME  25
+#define PAUSE_TIME  1000
+
+// Turn on debug statements to the serial output
+#define  DEBUG  0
+
+#if  DEBUG
+#define PRINT(s, x) { Serial.print(F(s)); Serial.print(x); }
+#define PRINTS(x) Serial.print(F(x))
+#define PRINTX(x) Serial.println(x, HEX)
+#else
+#define PRINT(s, x)
+#define PRINTS(x)
+#define PRINTX(x)
+#endif
+
+// Global variables
+uint8_t  curText;
+char  *pc[MAX_ZONES] =
+{
+  "GHI",
+  "DEF",
+  "ABC",
+};
+
+textEffect_t  effect[] =
+{
+  PA_RANDOM,
+  PA_PRINT,
+  PA_SCAN_HORIZ,
+  PA_SCROLL_LEFT,
+  PA_WIPE,
+  PA_ROCKET,
+  PA_SCAN_VERTX,
+  PA_SCROLL_UP_LEFT,
+  PA_SCROLL_UP,
+  PA_FADE,
+  PA_OPENING_CURSOR,
+  PA_GROW_UP,
+  PA_SCROLL_UP_RIGHT,
+  PA_BLINDS,
+  PA_CLOSING,
+  PA_GROW_DOWN,
+  PA_PACMAN2,
+  PA_SCAN_VERT,
+  PA_SCROLL_DOWN_LEFT,
+  PA_WIPE_CURSOR,
+  PA_SCAN_HORIZX,
+  PA_DISSOLVE,
+  PA_MESH,
+  PA_OPENING,
+  PA_CLOSING_CURSOR,
+  PA_SCROLL_DOWN_RIGHT,
+  PA_SCROLL_RIGHT,
+  PA_SLICE,
+  PA_SCROLL_DOWN,
+  PA_PACMAN1,
+};
+
+uint8_t inFX[MAX_ZONES] = { 0, ARRAY_SIZE(effect) / 3, 2 * ARRAY_SIZE(effect) / 3 };
+uint8_t outFX[MAX_ZONES] = { 0, ARRAY_SIZE(effect) / 3, 2 * ARRAY_SIZE(effect) / 3 };
+
+#if USE_UI_CONTROL
+void doUI(void)
+{
+  // set the speed if it has changed
+  {
+    int16_t	speed = map(analogRead(SPEED_IN), 0, 1023, 0, 250);
+
+    if (speed != (int16_t)P.getSpeed())
+    {
+      P.setSpeed(speed);
+      P.setPause(speed);
+      PRINT("\nChanged speed to ", P.getSpeed());
+    }
+  }
+}
+#endif // USE_UI_CONTROL
+
+void setup(void)
+{
+#if DEBUG
+  Serial.begin(57600);
+  PRINTS("[Parola Zone Display Demo]");
+#endif
+
+#if USE_UI_CONTROL
+  pinMode(SPEED_IN, INPUT);
+  doUI();
+#endif // USE_UI_CONTROL
+  P.begin(MAX_ZONES);
+  P.setInvert(false);
+
+  P.setZone(0, 0, 2);
+  P.setZone(1, 3, 5);
+  P.setZone(2, 6, 8);
+
+  for (uint8_t i=0; i<MAX_ZONES; i++)
+    P.displayZoneText(i, pc[i], PA_CENTER, SPEED_TIME, PAUSE_TIME, effect[inFX[i]], effect[outFX[i]]);
+}
+
+void loop(void)
+{
+#if USE_UI_CONTROL
+  doUI();
+#endif // USE_UI_CONTROL
+
+  if (P.displayAnimate()) // animates and returns true when an animation is completed
+  {
+    for (uint8_t i=0; i<MAX_ZONES; i++)
+    {
+      if (P.getZoneStatus(i))
+      {
+        outFX[i] = (++outFX[i]) % ARRAY_SIZE(effect);
+        if (outFX[i] == 0)
+        inFX[i] = (++inFX[i]) % ARRAY_SIZE(effect);
+
+        P.setTextEffect(i, effect[inFX[i]], effect[outFX[i]]);
+
+        // Tell Parola we have a new animation
+        P.displayReset(i);
+      }
+    }
+  }
+}