【雕爷学编程】Arduino动手做(138)---64位WS2812点阵屏模块2
37款传感器与执行器的提法,在网络上广泛流传,其实Arduino能够兼容的传感器模块肯定是不止这37种的。鉴于本人手头积累了一些传感器和执行器模块,依照实践出真知(一定要动手做)的理念,以学习和交流为目的,这里准备逐一动手尝试系列实验,不管成功(程序走通)与否,都会记录下来—小小的进步或是搞不掂的问题,希望能够抛砖引玉。
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏

【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏
安装NeoPixel库,工具—管理库—搜索NeoPixel—安装
安装Adafruit_NeoPixel库,
下载https://learn.adafruit.com/adafr ... ibrary-installation
程序之六:复合流水彩虹灯
实验接线
Module UNO
VCC —— 3.3V
GND —— GND
DI —— D6
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | /* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏 安装NeoPixel库,工具—管理库—搜索NeoPixel—安装 安装Adafruit_NeoPixel库, 下载https://learn.adafruit.com/adafr ... ibrary-installation 程序之六:复合流水彩虹灯 实验接线 Module UNO VCC —— 3.3V GND —— GND DI —— D6 */ #include <Adafruit_NeoPixel.h> #define PIN 6 #define BRIGHTNESS 64 Adafruit_NeoPixel strip = Adafruit_NeoPixel(64, PIN, NEO_GRB + NEO_KHZ800); void setup() { strip.setBrightness(BRIGHTNESS); strip.begin(); strip.show(); } void loop() { colorWipe(strip.Color(150, 0, 0), 50); // Red colorWipe(strip.Color(0, 150, 0), 50); // Green colorWipe(strip.Color(0, 0, 150), 50); // Blue colorWipe(strip.Color(150, 150, 150), 50); // BlueWite rainbowCycle(1); } void colorWipe(uint32_t c, uint8_t wait) { for (uint16_t i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, c); strip.show(); delay(wait); } } void rainbow(uint8_t wait) { uint16_t i, j; for (j = 0; j < 256; j++) { for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, Wheel((i + j) & 255 )); } strip.show(); delay(wait); } } void rainbowCycle(uint8_t wait) { uint16_t i, j; for (j = 0; j < 256 * 5; j++) { // 5 cycles of all colors on wheel for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255)); } strip.show(); delay(wait); } } uint32_t Wheel( byte WheelPos) { if (WheelPos < 85) { return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0); } else if (WheelPos < 170) { WheelPos -= 85; return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3); } else { WheelPos -= 170; return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3); } } |
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏
程序之七:复合飘逸彩虹满屏灯
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | /* 安装NeoPixel库,工具—管理库—搜索NeoPixel—安装 安装Adafruit_NeoPixel库, 下载https://learn.adafruit.com/adafr ... ibrary-installation 程序之七:复合飘逸彩虹满屏灯 实验接线 Module UNO VCC —— 3.3V GND —— GND DI —— D6 */ #include <Adafruit_NeoPixel.h> #ifdef __AVR__ #include <avr/power.h> #endif #define PIN 6 // Parameter 1 = number of pixels in strip // Parameter 2 = Arduino pin number (most are valid) // Parameter 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) Adafruit_NeoPixel strip = Adafruit_NeoPixel(64, PIN, NEO_GRB + NEO_KHZ800); // IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across // pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input // and minimize distance between Arduino and first pixel. Avoid connecting // on a live circuit...if you must, connect GND first. void setup() { // This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket #if defined (__AVR_ATtiny85__) if (F_CPU == 16000000) clock_prescale_set(clock_div_1); #endif // End of trinket special code strip.begin(); strip.setBrightness(50); strip.show(); // Initialize all pixels to 'off' } void loop() { // Some example procedures showing how to display to the pixels: colorWipe(strip.Color(255, 0, 0), 50); // Red colorWipe(strip.Color(0, 255, 0), 50); // Green colorWipe(strip.Color(0, 0, 255), 50); // Blue //colorWipe(strip.Color(0, 0, 0, 255), 50); // White RGBW // Send a theater pixel chase in... theaterChase(strip.Color(127, 127, 127), 50); // White theaterChase(strip.Color(127, 0, 0), 50); // Red theaterChase(strip.Color(0, 0, 127), 50); // Blue rainbow(20); rainbowCycle(20); theaterChaseRainbow(50); } // Fill the dots one after the other with a color void colorWipe(uint32_t c, uint8_t wait) { for (uint16_t i=0; i<strip.numPixels(); i++) { strip.setPixelColor(i, c); strip.show(); delay(wait); } } void rainbow(uint8_t wait) { uint16_t i, j; for (j=0; j<256; j++) { for (i=0; i<strip.numPixels(); i++) { strip.setPixelColor(i, Wheel((i+j) & 255)); } strip.show(); delay(wait); } } // Slightly different, this makes the rainbow equally distributed throughout void rainbowCycle(uint8_t wait) { uint16_t i, j; for (j=0; j<256*5; j++) { // 5 cycles of all colors on wheel for (i=0; i< strip.numPixels(); i++) { strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255)); } strip.show(); delay(wait); } } //Theatre-style crawling lights. void theaterChase(uint32_t c, uint8_t wait) { for ( int j=0; j<10; j++) { //do 10 cycles of chasing for ( int q=0; q < 3; q++) { for (uint16_t i=0; i < strip.numPixels(); i=i+3) { strip.setPixelColor(i+q, c); //turn every third pixel on } strip.show(); delay(wait); for (uint16_t i=0; i < strip.numPixels(); i=i+3) { strip.setPixelColor(i+q, 0); //turn every third pixel off } } } } //Theatre-style crawling lights with rainbow effect void theaterChaseRainbow(uint8_t wait) { for ( int j=0; j < 256; j++) { // cycle all 256 colors in the wheel for ( int q=0; q < 3; q++) { for (uint16_t i=0; i < strip.numPixels(); i=i+3) { strip.setPixelColor(i+q, Wheel( (i+j) % 255)); //turn every third pixel on } strip.show(); delay(wait); for (uint16_t i=0; i < strip.numPixels(); i=i+3) { strip.setPixelColor(i+q, 0); //turn every third pixel off } } } } // 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); } |
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏
程序之八:复合彩虹滚动流水灯
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | /* 安装NeoPixel库,工具—管理库—搜索NeoPixel—安装 安装Adafruit_NeoPixel库, 下载https://learn.adafruit.com/adafr ... ibrary-installation 程序之八:复合彩虹滚动流水灯 实验接线 Module UNO VCC —— 3.3V GND —— GND DI —— D6 */ #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: #define LED_PIN 6 // How many NeoPixels are attached to the Arduino? #define LED_COUNT 64 // 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) // 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() { // Fill along the length of the strip in various colors... colorWipe(strip.Color(255, 0, 0), 50); // Red colorWipe(strip.Color( 0, 255, 0), 50); // Green colorWipe(strip.Color( 0, 0, 255), 50); // Blue // Do a theater marquee effect in various colors... theaterChase(strip.Color(127, 127, 127), 50); // White, half brightness theaterChase(strip.Color(127, 0, 0), 50); // Red, half brightness theaterChase(strip.Color( 0, 0, 127), 50); // Blue, half brightness rainbow(10); // Flowing rainbow cycle along the whole strip theaterChaseRainbow(50); // Rainbow-enhanced theaterChase variant } // 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) { for ( int i=0; i<strip.numPixels(); i++) { // For each pixel in strip... strip.setPixelColor(i, color); // Set pixel's color (in RAM) strip.show(); // Update strip to match delay(wait); // Pause for a moment } } // 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) { for ( int a=0; a<10; a++) { // Repeat 10 times... for ( int b=0; b<3; b++) { // 'b' counts from 0 to 2... strip.clear(); // Set all pixels in RAM to 0 (off) // 'c' counts up from 'b' to end of strip in steps of 3... for ( int c=b; c<strip.numPixels(); c += 3) { strip.setPixelColor(c, color); // Set pixel 'c' to value 'color' } strip.show(); // Update strip with new contents delay(wait); // Pause for a moment } } } // Rainbow cycle along whole strip. Pass delay time (in ms) between frames. void rainbow( int wait) { // Hue of first pixel runs 5 complete loops through the color wheel. // Color wheel has a range of 65536 but it's OK if we roll over, so // just count from 0 to 5*65536. Adding 256 to firstPixelHue each time // means we'll make 5*65536/256 = 1280 passes through this outer loop: for ( long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) { for ( int i=0; i<strip.numPixels(); i++) { // For each pixel in strip... // Offset pixel hue by an amount to make one full revolution of the // color wheel (range of 65536) along the length of the strip // (strip.numPixels() steps): int pixelHue = firstPixelHue + (i * 65536L / strip.numPixels()); // strip.ColorHSV() can take 1 or 3 arguments: a hue (0 to 65535) or // optionally add saturation and value (brightness) (each 0 to 255). // Here we're using just the single-argument hue variant. The result // is passed through strip.gamma32() to provide 'truer' colors // before assigning to each pixel: strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue))); } strip.show(); // Update strip with new contents delay(wait); // Pause for a moment } } // Rainbow-enhanced theater marquee. Pass delay time (in ms) between frames. void theaterChaseRainbow( int wait) { int firstPixelHue = 0; // First pixel starts at red (hue 0) for ( int a=0; a<30; a++) { // Repeat 30 times... for ( int b=0; b<3; b++) { // 'b' counts from 0 to 2... strip.clear(); // Set all pixels in RAM to 0 (off) // 'c' counts up from 'b' to end of strip in increments of 3... for ( int c=b; c<strip.numPixels(); c += 3) { // hue of pixel 'c' is offset by an amount to make one full // revolution of the color wheel (range 65536) along the length // of the strip (strip.numPixels() steps): int hue = firstPixelHue + c * 65536L / strip.numPixels(); uint32_t color = strip.gamma32(strip.ColorHSV(hue)); // hue -> RGB strip.setPixelColor(c, color); // Set pixel 'c' to value 'color' } strip.show(); // Update strip with new contents delay(wait); // Pause for a moment firstPixelHue += 65536 / 90; // One cycle of color wheel over 90 frames } } } |
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏
程序之九:按键控制进入下段彩灯程序
实验接线
Module UNO
VCC —— 3.3V
GND —— GND
DI —— D6
ws —— D2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 | /* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏 安装NeoPixel库,工具—管理库—搜索NeoPixel—安装 安装Adafruit_NeoPixel库, 下载https://learn.adafruit.com/adafr ... ibrary-installation 程序之九:按键控制进入下段彩灯程序 实验接线 Module UNO VCC —— 3.3V GND —— GND DI —— D6 ws —— D2 */ #include <Adafruit_NeoPixel.h> #ifdef __AVR__ #include <avr/power.h> // Required for 16 MHz Adafruit Trinket #endif // Digital IO pin connected to the button. This will be driven with a // pull-up resistor so the switch pulls the pin to ground momentarily. // On a high -> low transition the button press logic will execute. #define BUTTON_PIN 2 #define PIXEL_PIN 7 // Digital IO pin connected to the NeoPixels. #define PIXEL_COUNT 64 // Number of NeoPixels // Declare our NeoPixel strip object: Adafruit_NeoPixel strip(PIXEL_COUNT, PIXEL_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) boolean oldState = HIGH; int mode = 0; // Currently-active animation mode, 0-9 void setup() { pinMode(BUTTON_PIN, INPUT_PULLUP); strip.begin(); // Initialize NeoPixel strip object (REQUIRED) strip.show(); // Initialize all pixels to 'off' } void loop() { // Get current button state. boolean newState = digitalRead(BUTTON_PIN); // Check if state changed from high to low (button press). if ((newState == LOW) && (oldState == HIGH)) { // Short delay to debounce button. delay(20); // Check if button is still low after debounce. newState = digitalRead(BUTTON_PIN); if (newState == LOW) { // Yes, still low if (++mode > 8) mode = 0; // Advance to next mode, wrap around after #8 switch (mode) { // Start the new animation... case 0: colorWipe(strip.Color( 0, 0, 0), 50); // Black/off break ; case 1: colorWipe(strip.Color(255, 0, 0), 50); // Red break ; case 2: colorWipe(strip.Color( 0, 255, 0), 50); // Green break ; case 3: colorWipe(strip.Color( 0, 0, 255), 50); // Blue break ; case 4: theaterChase(strip.Color(127, 127, 127), 50); // White break ; case 5: theaterChase(strip.Color(127, 0, 0), 50); // Red break ; case 6: theaterChase(strip.Color( 0, 0, 127), 50); // Blue break ; case 7: rainbow(10); break ; case 8: theaterChaseRainbow(50); break ; } } } // Set the last-read button state to the old state. oldState = newState; } // 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) { for ( int i = 0; i < strip.numPixels(); i++) { // For each pixel in strip... strip.setPixelColor(i, color); // Set pixel's color (in RAM) strip.show(); // Update strip to match delay(wait); // Pause for a moment } } // 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) { for ( int a = 0; a < 10; a++) { // Repeat 10 times... for ( int b = 0; b < 3; b++) { // 'b' counts from 0 to 2... strip.clear(); // Set all pixels in RAM to 0 (off) // 'c' counts up from 'b' to end of strip in steps of 3... for ( int c = b; c < strip.numPixels(); c += 3) { strip.setPixelColor(c, color); // Set pixel 'c' to value 'color' } strip.show(); // Update strip with new contents delay(wait); // Pause for a moment } } } // Rainbow cycle along whole strip. Pass delay time (in ms) between frames. void rainbow( int wait) { // Hue of first pixel runs 3 complete loops through the color wheel. // Color wheel has a range of 65536 but it's OK if we roll over, so // just count from 0 to 3*65536. Adding 256 to firstPixelHue each time // means we'll make 3*65536/256 = 768 passes through this outer loop: for ( long firstPixelHue = 0; firstPixelHue < 3 * 65536; firstPixelHue += 256) { for ( int i = 0; i < strip.numPixels(); i++) { // For each pixel in strip... // Offset pixel hue by an amount to make one full revolution of the // color wheel (range of 65536) along the length of the strip // (strip.numPixels() steps): int pixelHue = firstPixelHue + (i * 65536L / strip.numPixels()); // strip.ColorHSV() can take 1 or 3 arguments: a hue (0 to 65535) or // optionally add saturation and value (brightness) (each 0 to 255). // Here we're using just the single-argument hue variant. The result // is passed through strip.gamma32() to provide 'truer' colors // before assigning to each pixel: strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue))); } strip.show(); // Update strip with new contents delay(wait); // Pause for a moment } } // Rainbow-enhanced theater marquee. Pass delay time (in ms) between frames. void theaterChaseRainbow( int wait) { int firstPixelHue = 0; // First pixel starts at red (hue 0) for ( int a = 0; a < 30; a++) { // Repeat 30 times... for ( int b = 0; b < 3; b++) { // 'b' counts from 0 to 2... strip.clear(); // Set all pixels in RAM to 0 (off) // 'c' counts up from 'b' to end of strip in increments of 3... for ( int c = b; c < strip.numPixels(); c += 3) { // hue of pixel 'c' is offset by an amount to make one full // revolution of the color wheel (range 65536) along the length // of the strip (strip.numPixels() steps): int hue = firstPixelHue + c * 65536L / strip.numPixels(); uint32_t color = strip.gamma32(strip.ColorHSV(hue)); // hue -> RGB strip.setPixelColor(c, color); // Set pixel 'c' to value 'color' } strip.show(); // Update strip with new contents delay(wait); // Pause for a moment firstPixelHue += 65536 / 90; // One cycle of color wheel over 90 frames } } } |
视频——程序之六:复合流水彩虹灯
https://v.youku.com/v_show/id_XNDU2ODUwMTE2NA==.html
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏
项目十三:颜色调色板
实验开源代码
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 | /* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百三十八:64位 WS2812B8*8 xRGB 5050 LED模块 ws2812s像素点阵屏 项目十三:颜色调色板 实验接线 Module UNO VCC —— 3.3V GND —— GND DI —— D6 */ #include <FastLED.h> #define LED_PIN 6 #define NUM_LEDS 64 #define BRIGHTNESS 23 #define LED_TYPE WS2811 #define COLOR_ORDER GRB CRGB leds[NUM_LEDS]; #define UPDATES_PER_SECOND 100 //定义每秒更新数 // This example shows several ways to set up and use 'palettes' of colors // with FastLED. // // These compact palettes provide an easy way to re-colorize your // animation on the fly, quickly, easily, and with low overhead. // // USING palettes is MUCH simpler in practice than in theory, so first just // run this sketch, and watch the pretty lights as you then read through // the code. Although this sketch has eight (or more) different color schemes, // the entire sketch compiles down to about 6.5K on AVR. // // FastLED provides a few pre-configured color palettes, and makes it // extremely easy to make up your own color schemes with palettes. // // Some notes on the more abstract 'theory and practice' of // FastLED compact palettes are at the bottom of this file. CRGBPalette16 currentPalette; TBlendType currentBlending; extern CRGBPalette16 myRedWhiteBluePalette; extern const TProgmemPalette16 myRedWhiteBluePalette_p PROGMEM; void setup() { delay( 3000 ); // power-up safety delay FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip ); FastLED.setBrightness( BRIGHTNESS ); currentPalette = RainbowColors_p; currentBlending = LINEARBLEND; } void loop() { ChangePalettePeriodically(); static uint8_t startIndex = 0; startIndex = startIndex + 1; /* motion speed */ FillLEDsFromPaletteColors( startIndex); FastLED.show(); FastLED.delay(1000 / UPDATES_PER_SECOND); } void FillLEDsFromPaletteColors( uint8_t colorIndex) { uint8_t brightness = 255; for ( int i = 0; i < NUM_LEDS; ++i) { leds[i] = ColorFromPalette( currentPalette, colorIndex, brightness, currentBlending); colorIndex += 3; } } // There are several different palettes of colors demonstrated here. // // FastLED provides several 'preset' palettes: RainbowColors_p, RainbowStripeColors_p, // OceanColors_p, CloudColors_p, LavaColors_p, ForestColors_p, and PartyColors_p. // // Additionally, you can manually define your own color palettes, or you can write // code that creates color palettes on the fly. All are shown here. void ChangePalettePeriodically() { uint8_t secondHand = (millis() / 1000) % 60; static uint8_t lastSecond = 99; if ( lastSecond != secondHand) { lastSecond = secondHand; if ( secondHand == 0) { currentPalette = RainbowColors_p; currentBlending = LINEARBLEND; } if ( secondHand == 10) { currentPalette = RainbowStripeColors_p; currentBlending = NOBLEND; } if ( secondHand == 15) { currentPalette = RainbowStripeColors_p; currentBlending = LINEARBLEND; } if ( secondHand == 20) { SetupPurpleAndGreenPalette(); currentBlending = LINEARBLEND; } if ( secondHand == 25) { SetupTotallyRandomPalette(); currentBlending = LINEARBLEND; } if ( secondHand == 30) { SetupBlackAndWhiteStripedPalette(); currentBlending = NOBLEND; } if ( secondHand == 35) { SetupBlackAndWhiteStripedPalette(); currentBlending = LINEARBLEND; } if ( secondHand == 40) { currentPalette = CloudColors_p; currentBlending = LINEARBLEND; } if ( secondHand == 45) { currentPalette = PartyColors_p; currentBlending = LINEARBLEND; } if ( secondHand == 50) { currentPalette = myRedWhiteBluePalette_p; currentBlending = NOBLEND; } if ( secondHand == 55) { currentPalette = myRedWhiteBluePalette_p; currentBlending = LINEARBLEND; } } } // This function fills the palette with totally random colors. void SetupTotallyRandomPalette() { for ( int i = 0; i < 16; ++i) { currentPalette[i] = CHSV( random8(), 255, random8()); } } // This function sets up a palette of black and white stripes, // using code. Since the palette is effectively an array of // sixteen CRGB colors, the various fill_* functions can be used // to set them up. void SetupBlackAndWhiteStripedPalette() { // 'black out' all 16 palette entries... fill_solid( currentPalette, 16, CRGB::Black); // and set every fourth one to white. currentPalette[0] = CRGB::White; currentPalette[4] = CRGB::White; currentPalette[8] = CRGB::White; currentPalette[12] = CRGB::White; } // This function sets up a palette of purple and green stripes. void SetupPurpleAndGreenPalette() { CRGB purple = CHSV( HUE_PURPLE, 255, 255); CRGB green = CHSV( HUE_GREEN, 255, 255); CRGB black = CRGB::Black; currentPalette = CRGBPalette16( green, green, black, black, purple, purple, black, black, green, green, black, black, purple, purple, black, black ); } // This example shows how to set up a static color palette // which is stored in PROGMEM (flash), which is almost always more // plentiful than RAM. A static PROGMEM palette like this // takes up 64 bytes of flash. const TProgmemPalette16 myRedWhiteBluePalette_p PROGMEM = { CRGB::Red, CRGB::Gray, // 'white' is too bright compared to red and blue CRGB::Blue, CRGB::Black, CRGB::Red, CRGB::Gray, CRGB::Blue, CRGB::Black, CRGB::Red, CRGB::Red, CRGB::Gray, CRGB::Gray, CRGB::Blue, CRGB::Blue, CRGB::Black, CRGB::Black }; // Additional notes on FastLED compact palettes: // // Normally, in computer graphics, the palette (or "color lookup table") // has 256 entries, each containing a specific 24-bit RGB color. You can then // index into the color palette using a simple 8-bit (one byte) value. // A 256-entry color palette takes up 768 bytes of RAM, which on Arduino // is quite possibly "too many" bytes. // // FastLED does offer traditional 256-element palettes, for setups that // can afford the 768-byte cost in RAM. // // However, FastLED also offers a compact alternative. FastLED offers // palettes that store 16 distinct entries, but can be accessed AS IF // they actually have 256 entries; this is accomplished by interpolating // between the 16 explicit entries to create fifteen intermediate palette // entries between each pair. // // So for example, if you set the first two explicit entries of a compact // palette to Green (0,255,0) and Blue (0,0,255), and then retrieved // the first sixteen entries from the virtual palette (of 256), you'd get // Green, followed by a smooth gradient from green-to-blue, and then Blue. |
实验场景图
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】凌霞软件回馈社区,博客园 & 1Panel & Halo 联合会员上线
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】博客园社区专享云产品让利特惠,阿里云新客6.5折上折
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步
· PowerShell开发游戏 · 打蜜蜂
· 在鹅厂做java开发是什么体验
· 百万级群聊的设计实践
· WPF到Web的无缝过渡:英雄联盟客户端的OpenSilver迁移实战
· 永远不要相信用户的输入:从 SQL 注入攻防看输入验证的重要性