54 lines
1.2 KiB
Arduino
54 lines
1.2 KiB
Arduino
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// Demonstrates reversed text (as if on front of an ambulance)
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//
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// MD_MAX72XX library can be found at https://github.com/MajicDesigns/MD_MAX72XX
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//
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#include <MD_Parola.h>
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#include <MD_MAX72xx.h>
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#include <SPI.h>
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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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#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
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#define MAX_DEVICES 8
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#define PAUSE_TIME 1000
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#define SCROLL_SPEED 50
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#define CLK_PIN 13
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#define DATA_PIN 11
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#define CS_PIN 10
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// HARDWARE SPI
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MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
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// SOFTWARE SPI
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//MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);
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char *msg[] =
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{
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"Ambulance",
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"Emergency",
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};
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void setup(void)
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{
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// initialise the LED display
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P.begin();
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P.setZoneEffect(0, true, PA_FLIP_LR);
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}
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void loop(void)
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{
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static uint8_t cycle = 0;
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if (P.displayAnimate())
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{
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// set up the string
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P.displayText(msg[cycle], PA_CENTER, SCROLL_SPEED, PAUSE_TIME, PA_PRINT, PA_NO_EFFECT);
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// prepare for next pass
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cycle = (cycle + 1) % ARRAY_SIZE(msg);
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}
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}
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