69 lines
2.5 KiB
Plaintext
69 lines
2.5 KiB
Plaintext
// Adafruit_NeoMatrix example for single NeoPixel Shield.
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// Scrolls 'Howdy' across the matrix in a portrait (vertical) orientation.
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#include <Adafruit_GFX.h>
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#include <Adafruit_NeoMatrix.h>
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#include <Adafruit_NeoPixel.h>
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#ifndef PSTR
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#define PSTR // Make Arduino Due happy
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#endif
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#define PIN 6
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// MATRIX DECLARATION:
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// Parameter 1 = width of NeoPixel matrix
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// Parameter 2 = height of matrix
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// Parameter 3 = pin number (most are valid)
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// Parameter 4 = matrix layout flags, add together as needed:
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// NEO_MATRIX_TOP, NEO_MATRIX_BOTTOM, NEO_MATRIX_LEFT, NEO_MATRIX_RIGHT:
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// Position of the FIRST LED in the matrix; pick two, e.g.
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// NEO_MATRIX_TOP + NEO_MATRIX_LEFT for the top-left corner.
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// NEO_MATRIX_ROWS, NEO_MATRIX_COLUMNS: LEDs are arranged in horizontal
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// rows or in vertical columns, respectively; pick one or the other.
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// NEO_MATRIX_PROGRESSIVE, NEO_MATRIX_ZIGZAG: all rows/columns proceed
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// in the same order, or alternate lines reverse direction; pick one.
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// See example below for these values in action.
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// Parameter 5 = pixel type flags, add together as needed:
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// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
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// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
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// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products)
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// NEO_GRBW Pixels are wired for GRBW bitstream (RGB+W NeoPixel products)
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// NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
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// Example for NeoPixel Shield. In this application we'd like to use it
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// as a 5x8 tall matrix, with the USB port positioned at the top of the
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// Arduino. When held that way, the first pixel is at the top right, and
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// lines are arranged in columns, progressive order. The shield uses
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// 800 KHz (v2) pixels that expect GRB color data.
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Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(5, 8, PIN,
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NEO_MATRIX_TOP + NEO_MATRIX_RIGHT +
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NEO_MATRIX_COLUMNS + NEO_MATRIX_PROGRESSIVE,
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NEO_GRB + NEO_KHZ800);
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const uint16_t colors[] = {
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matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255) };
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void setup() {
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matrix.begin();
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matrix.setTextWrap(false);
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matrix.setBrightness(40);
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matrix.setTextColor(colors[0]);
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}
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int x = matrix.width();
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int pass = 0;
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void loop() {
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matrix.fillScreen(0);
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matrix.setCursor(x, 0);
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matrix.print(F("Howdy"));
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if(--x < -36) {
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x = matrix.width();
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if(++pass >= 3) pass = 0;
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matrix.setTextColor(colors[pass]);
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}
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matrix.show();
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delay(100);
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}
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