初始化提交
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王立帮
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// A non-blocking everyday NeoPixel strip test program.
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// NEOPIXEL BEST PRACTICES for most reliable operation:
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// - Add 1000 uF CAPACITOR between NeoPixel strip's + and - connections.
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// - MINIMIZE WIRING LENGTH between microcontroller board and first pixel.
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// - NeoPixel strip's DATA-IN should pass through a 300-500 OHM RESISTOR.
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// - AVOID connecting NeoPixels on a LIVE CIRCUIT. If you must, ALWAYS
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// connect GROUND (-) first, then +, then data.
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// - When using a 3.3V microcontroller with a 5V-powered NeoPixel strip,
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// a LOGIC-LEVEL CONVERTER on the data line is STRONGLY RECOMMENDED.
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// (Skipping these may work OK on your workbench but can fail in the field)
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#include <Adafruit_NeoPixel.h>
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#ifdef __AVR__
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#include <avr/power.h> // Required for 16 MHz Adafruit Trinket
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#endif
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// Which pin on the Arduino is connected to the NeoPixels?
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// On a Trinket or Gemma we suggest changing this to 1:
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#define LED_PIN 6
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// How many NeoPixels are attached to the Arduino?
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#define LED_COUNT 60
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// Declare our NeoPixel strip object:
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Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
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// Argument 1 = Number of pixels in NeoPixel strip
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// Argument 2 = Arduino pin number (most are valid)
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// Argument 3 = 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_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
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// NEO_RGBW Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
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unsigned long pixelPrevious = 0; // Previous Pixel Millis
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unsigned long patternPrevious = 0; // Previous Pattern Millis
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int patternCurrent = 0; // Current Pattern Number
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int patternInterval = 5000; // Pattern Interval (ms)
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int pixelInterval = 50; // Pixel Interval (ms)
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int pixelQueue = 0; // Pattern Pixel Queue
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int pixelCycle = 0; // Pattern Pixel Cycle
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uint16_t pixelCurrent = 0; // Pattern Current Pixel Number
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uint16_t pixelNumber = LED_COUNT; // Total Number of Pixels
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// setup() function -- runs once at startup --------------------------------
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void setup() {
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// These lines are specifically to support the Adafruit Trinket 5V 16 MHz.
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// Any other board, you can remove this part (but no harm leaving it):
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#if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)
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clock_prescale_set(clock_div_1);
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#endif
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// END of Trinket-specific code.
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strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
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strip.show(); // Turn OFF all pixels ASAP
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strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255)
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}
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// loop() function -- runs repeatedly as long as board is on ---------------
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void loop() {
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unsigned long currentMillis = millis(); // Update current time
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if((currentMillis - patternPrevious) >= patternInterval) { // Check for expired time
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patternPrevious = currentMillis;
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patternCurrent++; // Advance to next pattern
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if(patternCurrent >= 7)
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patternCurrent = 0;
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}
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if(currentMillis - pixelPrevious >= pixelInterval) { // Check for expired time
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pixelPrevious = currentMillis; // Run current frame
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switch (patternCurrent) {
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case 7:
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theaterChaseRainbow(50); // Rainbow-enhanced theaterChase variant
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break;
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case 6:
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rainbow(10); // Flowing rainbow cycle along the whole strip
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break;
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case 5:
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theaterChase(strip.Color(0, 0, 127), 50); // Blue
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break;
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case 4:
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theaterChase(strip.Color(127, 0, 0), 50); // Red
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break;
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case 3:
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theaterChase(strip.Color(127, 127, 127), 50); // White
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break;
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case 2:
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colorWipe(strip.Color(0, 0, 255), 50); // Blue
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break;
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case 1:
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colorWipe(strip.Color(0, 255, 0), 50); // Green
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break;
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default:
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colorWipe(strip.Color(255, 0, 0), 50); // Red
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break;
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}
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}
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}
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// Some functions of our own for creating animated effects -----------------
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// Fill strip pixels one after another with a color. Strip is NOT cleared
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// first; anything there will be covered pixel by pixel. Pass in color
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// (as a single 'packed' 32-bit value, which you can get by calling
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// strip.Color(red, green, blue) as shown in the loop() function above),
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// and a delay time (in milliseconds) between pixels.
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void colorWipe(uint32_t color, int wait) {
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if(pixelInterval != wait)
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pixelInterval = wait; // Update delay time
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strip.setPixelColor(pixelCurrent, color); // Set pixel's color (in RAM)
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strip.show(); // Update strip to match
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pixelCurrent++; // Advance current pixel
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if(pixelCurrent >= pixelNumber) // Loop the pattern from the first LED
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pixelCurrent = 0;
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}
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// Theater-marquee-style chasing lights. Pass in a color (32-bit value,
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// a la strip.Color(r,g,b) as mentioned above), and a delay time (in ms)
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// between frames.
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void theaterChase(uint32_t color, int wait) {
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if(pixelInterval != wait)
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pixelInterval = wait; // Update delay time
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for(int i = 0; i < pixelNumber; i++) {
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strip.setPixelColor(i + pixelQueue, color); // Set pixel's color (in RAM)
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}
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strip.show(); // Update strip to match
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for(int i=0; i < pixelNumber; i+3) {
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strip.setPixelColor(i + pixelQueue, strip.Color(0, 0, 0)); // Set pixel's color (in RAM)
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}
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pixelQueue++; // Advance current pixel
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if(pixelQueue >= 3)
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pixelQueue = 0; // Loop the pattern from the first LED
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}
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// Rainbow cycle along whole strip. Pass delay time (in ms) between frames.
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void rainbow(uint8_t wait) {
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if(pixelInterval != wait)
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pixelInterval = wait;
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for(uint16_t i=0; i < pixelNumber; i++) {
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strip.setPixelColor(i, Wheel((i + pixelCycle) & 255)); // Update delay time
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}
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strip.show(); // Update strip to match
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pixelCycle++; // Advance current cycle
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if(pixelCycle >= 256)
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pixelCycle = 0; // Loop the cycle back to the begining
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}
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//Theatre-style crawling lights with rainbow effect
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void theaterChaseRainbow(uint8_t wait) {
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if(pixelInterval != wait)
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pixelInterval = wait; // Update delay time
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for(int i=0; i < pixelNumber; i+3) {
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strip.setPixelColor(i + pixelQueue, Wheel((i + pixelCycle) % 255)); // Update delay time
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}
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strip.show();
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for(int i=0; i < pixelNumber; i+3) {
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strip.setPixelColor(i + pixelQueue, strip.Color(0, 0, 0)); // Update delay time
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}
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pixelQueue++; // Advance current queue
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pixelCycle++; // Advance current cycle
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if(pixelQueue >= 3)
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pixelQueue = 0; // Loop
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if(pixelCycle >= 256)
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pixelCycle = 0; // Loop
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}
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// Input a value 0 to 255 to get a color value.
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// The colours are a transition r - g - b - back to r.
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uint32_t Wheel(byte WheelPos) {
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WheelPos = 255 - WheelPos;
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if(WheelPos < 85) {
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return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
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}
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if(WheelPos < 170) {
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WheelPos -= 85;
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return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
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}
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WheelPos -= 170;
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return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
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}
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