201 lines
7.5 KiB
C++
201 lines
7.5 KiB
C++
// A non-blocking everyday NeoPixel strip test program.
|
|
|
|
// NEOPIXEL BEST PRACTICES for most reliable operation:
|
|
// - Add 1000 uF CAPACITOR between NeoPixel strip's + and - connections.
|
|
// - MINIMIZE WIRING LENGTH between microcontroller board and first pixel.
|
|
// - NeoPixel strip's DATA-IN should pass through a 300-500 OHM RESISTOR.
|
|
// - AVOID connecting NeoPixels on a LIVE CIRCUIT. If you must, ALWAYS
|
|
// connect GROUND (-) first, then +, then data.
|
|
// - When using a 3.3V microcontroller with a 5V-powered NeoPixel strip,
|
|
// a LOGIC-LEVEL CONVERTER on the data line is STRONGLY RECOMMENDED.
|
|
// (Skipping these may work OK on your workbench but can fail in the field)
|
|
|
|
#include <Adafruit_NeoPixel.h>
|
|
#ifdef __AVR__
|
|
#include <avr/power.h> // Required for 16 MHz Adafruit Trinket
|
|
#endif
|
|
|
|
// Which pin on the Arduino is connected to the NeoPixels?
|
|
// On a Trinket or Gemma we suggest changing this to 1:
|
|
#ifdef ESP32
|
|
// Cannot use 6 as output for ESP. Pins 6-11 are connected to SPI flash. Use 16 instead.
|
|
#define LED_PIN 16
|
|
#else
|
|
#define LED_PIN 6
|
|
#endif
|
|
|
|
// How many NeoPixels are attached to the Arduino?
|
|
#define LED_COUNT 60
|
|
|
|
// Declare our NeoPixel strip object:
|
|
Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
|
|
// Argument 1 = Number of pixels in NeoPixel strip
|
|
// Argument 2 = Arduino pin number (most are valid)
|
|
// Argument 3 = Pixel type flags, add together as needed:
|
|
// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
|
|
// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
|
|
// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products)
|
|
// NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
|
|
// NEO_RGBW Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
|
|
|
|
unsigned long pixelPrevious = 0; // Previous Pixel Millis
|
|
unsigned long patternPrevious = 0; // Previous Pattern Millis
|
|
int patternCurrent = 0; // Current Pattern Number
|
|
int patternInterval = 5000; // Pattern Interval (ms)
|
|
bool patternComplete = false;
|
|
|
|
int pixelInterval = 50; // Pixel Interval (ms)
|
|
int pixelQueue = 0; // Pattern Pixel Queue
|
|
int pixelCycle = 0; // Pattern Pixel Cycle
|
|
uint16_t pixelNumber = LED_COUNT; // Total Number of Pixels
|
|
|
|
// setup() function -- runs once at startup --------------------------------
|
|
void setup() {
|
|
// These lines are specifically to support the Adafruit Trinket 5V 16 MHz.
|
|
// Any other board, you can remove this part (but no harm leaving it):
|
|
#if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)
|
|
clock_prescale_set(clock_div_1);
|
|
#endif
|
|
// END of Trinket-specific code.
|
|
|
|
strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
|
|
strip.show(); // Turn OFF all pixels ASAP
|
|
strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255)
|
|
}
|
|
|
|
// loop() function -- runs repeatedly as long as board is on ---------------
|
|
void loop() {
|
|
unsigned long currentMillis = millis(); // Update current time
|
|
if( patternComplete || (currentMillis - patternPrevious) >= patternInterval) { // Check for expired time
|
|
patternComplete = false;
|
|
patternPrevious = currentMillis;
|
|
patternCurrent++; // Advance to next pattern
|
|
if(patternCurrent >= 7)
|
|
patternCurrent = 0;
|
|
}
|
|
|
|
if(currentMillis - pixelPrevious >= pixelInterval) { // Check for expired time
|
|
pixelPrevious = currentMillis; // Run current frame
|
|
switch (patternCurrent) {
|
|
case 7:
|
|
theaterChaseRainbow(50); // Rainbow-enhanced theaterChase variant
|
|
break;
|
|
case 6:
|
|
rainbow(10); // Flowing rainbow cycle along the whole strip
|
|
break;
|
|
case 5:
|
|
theaterChase(strip.Color(0, 0, 127), 50); // Blue
|
|
break;
|
|
case 4:
|
|
theaterChase(strip.Color(127, 0, 0), 50); // Red
|
|
break;
|
|
case 3:
|
|
theaterChase(strip.Color(127, 127, 127), 50); // White
|
|
break;
|
|
case 2:
|
|
colorWipe(strip.Color(0, 0, 255), 50); // Blue
|
|
break;
|
|
case 1:
|
|
colorWipe(strip.Color(0, 255, 0), 50); // Green
|
|
break;
|
|
default:
|
|
colorWipe(strip.Color(255, 0, 0), 50); // Red
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Some functions of our own for creating animated effects -----------------
|
|
|
|
// Fill strip pixels one after another with a color. Strip is NOT cleared
|
|
// first; anything there will be covered pixel by pixel. Pass in color
|
|
// (as a single 'packed' 32-bit value, which you can get by calling
|
|
// strip.Color(red, green, blue) as shown in the loop() function above),
|
|
// and a delay time (in milliseconds) between pixels.
|
|
void colorWipe(uint32_t color, int wait) {
|
|
static uint16_t current_pixel = 0;
|
|
pixelInterval = wait; // Update delay time
|
|
strip.setPixelColor(current_pixel++, color); // Set pixel's color (in RAM)
|
|
strip.show(); // Update strip to match
|
|
if(current_pixel >= pixelNumber) { // Loop the pattern from the first LED
|
|
current_pixel = 0;
|
|
patternComplete = true;
|
|
}
|
|
}
|
|
|
|
// Theater-marquee-style chasing lights. Pass in a color (32-bit value,
|
|
// a la strip.Color(r,g,b) as mentioned above), and a delay time (in ms)
|
|
// between frames.
|
|
void theaterChase(uint32_t color, int wait) {
|
|
static uint32_t loop_count = 0;
|
|
static uint16_t current_pixel = 0;
|
|
|
|
pixelInterval = wait; // Update delay time
|
|
|
|
strip.clear();
|
|
|
|
for(int c=current_pixel; c < pixelNumber; c += 3) {
|
|
strip.setPixelColor(c, color);
|
|
}
|
|
strip.show();
|
|
|
|
current_pixel++;
|
|
if (current_pixel >= 3) {
|
|
current_pixel = 0;
|
|
loop_count++;
|
|
}
|
|
|
|
if (loop_count >= 10) {
|
|
current_pixel = 0;
|
|
loop_count = 0;
|
|
patternComplete = true;
|
|
}
|
|
}
|
|
|
|
// Rainbow cycle along whole strip. Pass delay time (in ms) between frames.
|
|
void rainbow(uint8_t wait) {
|
|
if(pixelInterval != wait)
|
|
pixelInterval = wait;
|
|
for(uint16_t i=0; i < pixelNumber; i++) {
|
|
strip.setPixelColor(i, Wheel((i + pixelCycle) & 255)); // Update delay time
|
|
}
|
|
strip.show(); // Update strip to match
|
|
pixelCycle++; // Advance current cycle
|
|
if(pixelCycle >= 256)
|
|
pixelCycle = 0; // Loop the cycle back to the begining
|
|
}
|
|
|
|
//Theatre-style crawling lights with rainbow effect
|
|
void theaterChaseRainbow(uint8_t wait) {
|
|
if(pixelInterval != wait)
|
|
pixelInterval = wait; // Update delay time
|
|
for(int i=0; i < pixelNumber; i+=3) {
|
|
strip.setPixelColor(i + pixelQueue, Wheel((i + pixelCycle) % 255)); // Update delay time
|
|
}
|
|
strip.show();
|
|
for(int i=0; i < pixelNumber; i+=3) {
|
|
strip.setPixelColor(i + pixelQueue, strip.Color(0, 0, 0)); // Update delay time
|
|
}
|
|
pixelQueue++; // Advance current queue
|
|
pixelCycle++; // Advance current cycle
|
|
if(pixelQueue >= 3)
|
|
pixelQueue = 0; // Loop
|
|
if(pixelCycle >= 256)
|
|
pixelCycle = 0; // Loop
|
|
}
|
|
|
|
// Input a value 0 to 255 to get a color value.
|
|
// The colours are a transition r - g - b - back to r.
|
|
uint32_t Wheel(byte WheelPos) {
|
|
WheelPos = 255 - WheelPos;
|
|
if(WheelPos < 85) {
|
|
return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
|
|
}
|
|
if(WheelPos < 170) {
|
|
WheelPos -= 85;
|
|
return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
|
|
}
|
|
WheelPos -= 170;
|
|
return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
|
|
}
|