Made MD* libraries (Parola, MAX72XX) project specific, to be able to use the newest software version from github.
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133
lib/MD_MAX72XX/examples/MD_MAX72xx_Pacman/MD_MAX72xx_Pacman.ino
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133
lib/MD_MAX72XX/examples/MD_MAX72xx_Pacman/MD_MAX72xx_Pacman.ino
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// Use the MD_MAX72XX library to display a Pacman animation
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// Just for fun!
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#include <MD_MAX72xx.h>
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#include <SPI.h>
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#define DEBUG 0 // Enable or disable (default) debugging output
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#if DEBUG
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#define PRINT(s, v) { Serial.print(F(s)); Serial.print(v); } // Print a string followed by a value (decimal)
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#define PRINTX(s, v) { Serial.print(F(s)); Serial.print(v, HEX); } // Print a string followed by a value (hex)
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#define PRINTB(s, v) { Serial.print(F(s)); Serial.print(v, BIN); } // Print a string followed by a value (binary)
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#define PRINTC(s, v) { Serial.print(F(s)); Serial.print((char)v); } // Print a string followed by a value (char)
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#define PRINTS(s) { Serial.print(F(s)); } // Print a string
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#else
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#define PRINT(s, v) // Print a string followed by a value (decimal)
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#define PRINTX(s, v) // Print a string followed by a value (hex)
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#define PRINTB(s, v) // Print a string followed by a value (binary)
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#define PRINTC(s, v) // Print a string followed by a value (char)
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#define PRINTS(s) // Print a string
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#endif
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// --------------------
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// MD_MAX72xx hardware definitions and object
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// Define the number of devices we have in the chain and the hardware interface
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// NOTE: These pin numbers will probably not work with your hardware and may
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// need to be adapted
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//
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#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
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#define MAX_DEVICES 12
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#define CLK_PIN 13 // or SCK
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#define DATA_PIN 11 // or MOSI
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#define CS_PIN 10 // or SS
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MD_MAX72XX mx = MD_MAX72XX(HARDWARE_TYPE, CS_PIN, MAX_DEVICES); // SPI hardware interface
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//MD_MAX72XX mx = MD_MAX72XX(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES); // Arbitrary pins
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// --------------------
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// Constant parameters
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//
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#define ANIMATION_DELAY 75 // milliseconds
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#define MAX_FRAMES 4 // number of animation frames
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// ========== General Variables ===========
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//
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const uint8_t pacman[MAX_FRAMES][18] = // ghost pursued by a pacman
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{
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{ 0xfe, 0x73, 0xfb, 0x7f, 0xf3, 0x7b, 0xfe, 0x00, 0x00, 0x00, 0x3c, 0x7e, 0x7e, 0xff, 0xe7, 0xc3, 0x81, 0x00 },
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{ 0xfe, 0x7b, 0xf3, 0x7f, 0xfb, 0x73, 0xfe, 0x00, 0x00, 0x00, 0x3c, 0x7e, 0xff, 0xff, 0xe7, 0xe7, 0x42, 0x00 },
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{ 0xfe, 0x73, 0xfb, 0x7f, 0xf3, 0x7b, 0xfe, 0x00, 0x00, 0x00, 0x3c, 0x7e, 0xff, 0xff, 0xff, 0xe7, 0x66, 0x24 },
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{ 0xfe, 0x7b, 0xf3, 0x7f, 0xf3, 0x7b, 0xfe, 0x00, 0x00, 0x00, 0x3c, 0x7e, 0xff, 0xff, 0xff, 0xff, 0x7e, 0x3c },
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};
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const uint8_t DATA_WIDTH = (sizeof(pacman[0])/sizeof(pacman[0][0]));
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uint32_t prevTimeAnim = 0; // remember the millis() value in animations
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int16_t idx; // display index (column)
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uint8_t frame; // current animation frame
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uint8_t deltaFrame; // the animation frame offset for the next frame
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// ========== Control routines ===========
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//
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void resetMatrix(void)
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{
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mx.control(MD_MAX72XX::INTENSITY, MAX_INTENSITY/2);
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mx.control(MD_MAX72XX::UPDATE, MD_MAX72XX::ON);
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mx.clear();
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}
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void setup()
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{
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mx.begin();
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resetMatrix();
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prevTimeAnim = millis();
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#if DEBUG
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Serial.begin(57600);
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#endif
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PRINTS("\n[MD_MAX72XX Pacman]");
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}
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void loop(void)
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{
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static boolean bInit = true; // initialise the animation
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// Is it time to animate?
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if (millis()-prevTimeAnim < ANIMATION_DELAY)
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return;
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prevTimeAnim = millis(); // starting point for next time
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mx.control(MD_MAX72XX::UPDATE, MD_MAX72XX::OFF);
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// Initialize
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if (bInit)
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{
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mx.clear();
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idx = -DATA_WIDTH;
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frame = 0;
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deltaFrame = 1;
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bInit = false;
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// Lay out the dots
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for (uint8_t i=0; i<MAX_DEVICES; i++)
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{
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mx.setPoint(3, (i*COL_SIZE) + 3, true);
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mx.setPoint(4, (i*COL_SIZE) + 3, true);
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mx.setPoint(3, (i*COL_SIZE) + 4, true);
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mx.setPoint(4, (i*COL_SIZE) + 4, true);
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}
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}
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// now run the animation
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PRINT("\nINV I:", idx);
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PRINT(" frame ", frame);
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// clear old graphic
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for (uint8_t i=0; i<DATA_WIDTH; i++)
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mx.setColumn(idx-DATA_WIDTH+i, 0);
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// move reference column and draw new graphic
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idx++;
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for (uint8_t i=0; i<DATA_WIDTH; i++)
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mx.setColumn(idx-DATA_WIDTH+i, pacman[frame][i]);
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// advance the animation frame
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frame += deltaFrame;
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if (frame == 0 || frame == MAX_FRAMES-1)
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deltaFrame = -deltaFrame;
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// check if we are completed and set initialise for next time around
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bInit = (idx == mx.getColumnCount()+DATA_WIDTH);
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mx.control(MD_MAX72XX::UPDATE, MD_MAX72XX::ON);
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return;
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}
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