95 lines
4.2 KiB
Arduino
95 lines
4.2 KiB
Arduino
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// A basic 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 12
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#define LED_PIN2 6
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#define status 13
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#define TIME_BLINK 500
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// How many NeoPixels are attached to the Arduino?
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#define LED_COUNT 48
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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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Adafruit_NeoPixel strip2(LED_COUNT, LED_PIN2, 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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// setup() function -- runs once at startup --------------------------------
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void setup() {
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pinMode(status, OUTPUT);
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digitalWrite(status, LOW);
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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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strip2.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
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strip2.show(); // Turn OFF all pixels ASAP
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strip2.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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unsigned long time_status = millis();
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void loop() {
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rainbow(10); // Flowing rainbow cycle along the whole strip
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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(int wait) {
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// Hue of first pixel runs 5 complete loops through the color wheel.
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// Color wheel has a range of 65536 but it's OK if we roll over, so
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// just count from 0 to 5*65536. Adding 256 to firstPixelHue each time
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// means we'll make 5*65536/256 = 1280 passes through this outer loop:
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for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
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for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
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// Offset pixel hue by an amount to make one full revolution of the
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// color wheel (range of 65536) along the length of the strip
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// (strip.numPixels() steps):
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int pixelHue = firstPixelHue + (i * 65536L / strip.numPixels());
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// strip.ColorHSV() can take 1 or 3 arguments: a hue (0 to 65535) or
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// optionally add saturation and value (brightness) (each 0 to 255).
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// Here we're using just the single-argument hue variant. The result
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// is passed through strip.gamma32() to provide 'truer' colors
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// before assigning to each pixel:
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strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue)));
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strip2.setPixelColor(i, strip2.gamma32(strip2.ColorHSV(pixelHue)));
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}
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if((millis()-time_status)<TIME_BLINK) digitalWrite(status, LOW);
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else if((millis()-time_status)<2*TIME_BLINK) digitalWrite(status, HIGH);
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else if((millis()-time_status)>=2*TIME_BLINK) time_status = millis();
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strip.show(); // Update strip with new contents
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strip2.show(); // Update strip with new contents
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delay(wait); // Pause for a moment
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}
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}
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