HeathenHacks
Published © GPL3+

LED Matrix + Motion Sensor Door Display [Arduino Holiday]

This project combines the WS2812B RGB LED matrix and PIR motion sensor to greet visitors with a text.

IntermediateFull instructions provided4,340
LED Matrix + Motion Sensor Door Display [Arduino Holiday]

Things used in this project

Hardware components

Arduino UNO & Genuino UNO
Arduino UNO & Genuino UNO
×1
Arduino Nano R3
Arduino Nano R3
×1
PIR Motion Sensor (generic)
PIR Motion Sensor (generic)
×1
Relay (generic)
×1
Jumper wires (generic)
Jumper wires (generic)
×1
PC PSU Power Cord
×1
RGB LED Strip
×1
8x8 Neopixel Panel
×3

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
Wire Stripper

Story

Read more

Schematics

simple schematic

Code

Arduino Holiday

Arduino
#include <FastLED.h>

FASTLED_USING_NAMESPACE

#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#ifndef PSTR
#define PSTR // Make Arduino Due happy
#endif
#define PIN 6
//#if defined(FASTLED_VERSION) && (FASTLED_VERSION < 3001000)
//#warning "Requires FastLED 3.1 or later; check github for latest code."
//#endif

#define DATA_PIN    6
#define LED_TYPE    WS2811
#define COLOR_ORDER GRB
#define NUM_LEDS    192
CRGB leds[NUM_LEDS];
const uint8_t kMatrixWidth  = 24;
const uint8_t kMatrixHeight = 8;
const bool    kMatrixSerpentineLayout = true;
#define NUM_LEDS (kMatrixWidth * kMatrixHeight)
#define MAX_DIMENSION ((kMatrixWidth>kMatrixHeight) ? kMatrixWidth : kMatrixHeight)
#define BRIGHTNESS          50
#define FRAMES_PER_SECOND  120
// The 16 bit version of our coordinates
static uint16_t x;
static uint16_t y;
static uint16_t z;
Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(24, 8, PIN,
                            NEO_MATRIX_TOP     + NEO_MATRIX_RIGHT +
                            NEO_MATRIX_COLUMNS + NEO_MATRIX_PROGRESSIVE,
                            NEO_GRB            + NEO_KHZ800);
const uint16_t colors[] = {
  matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255), matrix.Color(0, 255, 255), matrix.Color(255, 0, 255), matrix.Color(255, 255, 0), matrix.Color(255, 255, 255)};
uint16_t speed = 20; // speed is set dynamically once we've started up
uint16_t scale = 30; // scale is set dynamically once we've started
uint8_t noise[MAX_DIMENSION][MAX_DIMENSION];
CRGBPalette16 currentPalette( PartyColors_p );
uint8_t       colorLoop = 1;
int pirSensorPin = 5; // choose the input pin (for PIR sensor)
int pirState = true; // we start, assuming no motion detected
int val = 0; // variable for reading the pin status
int minimummSecsLowForInactive = 5000; // If the sensor reports low for
// more than this time, then assume no activity
long unsigned int timeLow;
boolean takeLowTime;

//the time we give the sensor to calibrate (10-60 secs according to the datasheet)
int calibrationTime = 30;

void setup() {
  delay(3000); // 3 second delay for recovery

  // tell FastLED about the LED strip configuration
  FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  //FastLED.addLeds<LED_TYPE,DATA_PIN,CLK_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);

  // set master brightness control
  FastLED.setBrightness(BRIGHTNESS);
  matrix.setTextWrap(false);
  matrix.setBrightness(40);
  matrix.setTextColor(colors[0]);
  pinMode(pirSensorPin, INPUT); // declare sensor as input
  LEDS.addLeds<WS2812, DATA_PIN, RGB>(leds, NUM_LEDS);
  x = random16();
  y = random16();
  z = random16();
}
int a    = matrix.width();
int pass = 0;

// List of patterns to cycle through.  Each is defined as a separate function below.
typedef void (*SimplePatternList[])();
SimplePatternList gPatterns = { rainbow, rainbowWithGlitter, confetti, sinelon, juggle, bpm, cylon};

uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is current
uint8_t gHue = 0; // rotating "base color" used by many of the patterns

void fadeall() {
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i].nscale8(250);
  }
}

void loop()
{
  val = digitalRead(pirSensorPin); // read input value
  if (val == HIGH) { // check if the input is HIGH

    matrix.fillScreen(1);
    matrix.setCursor(a, 0);
    matrix.print(F("Happy Holidays & Happy New Year!"));
    if (--a < -200) {
      a = matrix.width();
      if (++pass >= 6) pass = 0;
      matrix.setTextColor(colors[pass]);
    }
    matrix.show();
    delay(100);
    if (pirState) {
      // we have just turned on
      pirState = false;

    }
    takeLowTime = true;
  }
  else {

    // Call the current pattern function once, updating the 'leds' array
    gPatterns[gCurrentPatternNumber]();

    // send the 'leds' array out to the actual LED strip
    FastLED.show();
    // insert a delay to keep the framerate modest
    FastLED.delay(1000 / FRAMES_PER_SECOND);

    // do some periodic updates
    EVERY_N_MILLISECONDS( 20 ) {
      gHue++;  // slowly cycle the "base color" through the rainbow
    }
    EVERY_N_SECONDS( 10 ) {
      nextPattern();  // change patterns periodically
    }

  }
}
#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))

void nextPattern()
{
  // add one to the current pattern number, and wrap around at the end
  gCurrentPatternNumber = (gCurrentPatternNumber + 1) % ARRAY_SIZE( gPatterns);
}

void rainbow()
{
  // FastLED's built-in rainbow generator
  fill_rainbow( leds, NUM_LEDS, gHue, 7);
}


void rainbowWithGlitter()
{
  // built-in FastLED rainbow, plus some random sparkly glitter
  rainbow();
  addGlitter(80);
}

void addGlitter( fract8 chanceOfGlitter)
{
  if ( random8() < chanceOfGlitter) {
    leds[ random16(NUM_LEDS) ] += CRGB::White;
  }
}

void confetti()
{
  // random colored speckles that blink in and fade smoothly
  fadeToBlackBy( leds, NUM_LEDS, 10);
  int pos = random16(NUM_LEDS);
  leds[pos] += CHSV( gHue + random8(64), 200, 255);
}

void sinelon()
{
  // a colored dot sweeping back and forth, with fading trails
  fadeToBlackBy( leds, NUM_LEDS, 20);
  int pos = beatsin16( 13, 0, NUM_LEDS - 1 );
  leds[pos] += CHSV( gHue, 255, 192);
}

void bpm()
{
  // colored stripes pulsing at a defined Beats-Per-Minute (BPM)
  uint8_t BeatsPerMinute = 62;
  CRGBPalette16 palette = PartyColors_p;
  uint8_t beat = beatsin8( BeatsPerMinute, 64, 255);
  for ( int i = 0; i < NUM_LEDS; i++) { //9948
    leds[i] = ColorFromPalette(palette, gHue + (i * 2), beat - gHue + (i * 10));
  }
}

void juggle() {
  // eight colored dots, weaving in and out of sync with each other
  fadeToBlackBy( leds, NUM_LEDS, 20);
  byte dothue = 0;
  for ( int i = 0; i < 8; i++) {
    leds[beatsin16( i + 7, 0, NUM_LEDS - 1 )] |= CHSV(dothue, 200, 255);
    dothue += 32;
  }
}

void cylon() { 
static uint8_t hue = 0;
  // First slide the led in one direction
  for(int i = 0; i < NUM_LEDS; i++) {
    // Set the i'th led to red 
    leds[i] = CHSV(hue++, 255, 255);
    // Show the leds
    FastLED.show(); 
    // now that we've shown the leds, reset the i'th led to black
    // leds[i] = CRGB::Black;
    fadeall();
    // Wait a little bit before we loop around and do it again
    delay(10);
  }

  // Now go in the other direction.  
  for(int i = (NUM_LEDS)-1; i >= 0; i--) {
    // Set the i'th led to red 
    leds[i] = CHSV(hue++, 255, 255);
    // Show the leds
    FastLED.show();
    // now that we've shown the leds, reset the i'th led to black
    // leds[i] = CRGB::Black;
    fadeall();
    // Wait a little bit before we loop around and do it again
    delay(10);
  }
}

Credits

HeathenHacks

HeathenHacks

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