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

项目十四：快速淡入淡出循环变色

实验开源代码

/*【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像素点阵屏项目十四：快速淡入淡出循环变色实验接线Module  UNOVCC —— 3.3VGND —— GNDDI —— D6*/#include <FastLED.h>// How many leds in your strip?#define NUM_LEDS 64 // For led chips like Neopixels, which have a data line, ground, and power, you just// need to define DATA_PIN. For led chipsets that are SPI based (four wires - data, clock,// ground, and power), like the LPD8806, define both DATA_PIN and CLOCK_PIN#define DATA_PIN 6//#define CLOCK_PIN 13// Define the array of ledsCRGB leds[NUM_LEDS];void setup() { Serial.begin(57600);Serial.println("resetting");FastLED.addLeds<WS2812,DATA_PIN,RGB>(leds,NUM_LEDS);FastLED.setBrightness(24);}void fadeall() { for(int i = 0; i < NUM_LEDS; i++) { leds[i].nscale8(250); } }void loop() { static uint8_t hue = 0;Serial.print("x");// First slide the led in one directionfor(int i = 0; i < NUM_LEDS; i++) {// Set the i'th led to red leds[i] = CHSV(hue++, 255, 255);// Show the ledsFastLED.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 againdelay(10);}Serial.print("x");// 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 ledsFastLED.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 againdelay(10);}}

【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

项目十五：每个 LED 灯条的颜色校正设置，以及总输出’色温’的总控制

实验开源代码

/*【Arduino】168种传感器模块系列实验（资料+代码+图形+仿真）实验一百四十六：64位WS2812B 8*8 xRGB 5050 LED模块 ws2812s像素点阵屏项目十五：每个 LED 灯条的颜色校正设置，以及总输出'色温'的总控制实验接线Module    UNOVCC —— 3.3VGND —— GNDDI  ——  D6
*/#include <FastLED.h>
#define LED_PIN     6
// Information about the LED strip itself
#define NUM_LEDS    64
#define CHIPSET     WS2811
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];
#define BRIGHTNESS  26// FastLED v2.1 provides two color-management controls:
//   (1) color correction settings for each LED strip, and
//   (2) master control of the overall output 'color temperature' 
//
// THIS EXAMPLE demonstrates the second, "color temperature" control.
// It shows a simple rainbow animation first with one temperature profile,
// and a few seconds later, with a different temperature profile.
//
// The first pixel of the strip will show the color temperature.
//
// HELPFUL HINTS for "seeing" the effect in this demo:
// * Don't look directly at the LED pixels.  Shine the LEDs aganst
//   a white wall, table, or piece of paper, and look at the reflected light.
//
// * If you watch it for a bit, and then walk away, and then come back 
//   to it, you'll probably be able to "see" whether it's currently using
//   the 'redder' or the 'bluer' temperature profile, even not counting
//   the lowest 'indicator' pixel.
//
//
// FastLED provides these pre-conigured incandescent color profiles:
//     Candle, Tungsten40W, Tungsten100W, Halogen, CarbonArc,
//     HighNoonSun, DirectSunlight, OvercastSky, ClearBlueSky,
// FastLED provides these pre-configured gaseous-light color profiles:
//     WarmFluorescent, StandardFluorescent, CoolWhiteFluorescent,
//     FullSpectrumFluorescent, GrowLightFluorescent, BlackLightFluorescent,
//     MercuryVapor, SodiumVapor, MetalHalide, HighPressureSodium,
// FastLED also provides an "Uncorrected temperature" profile
//    UncorrectedTemperature;#define TEMPERATURE_1 Tungsten100W
#define TEMPERATURE_2 OvercastSky// How many seconds to show each temperature before switching
#define DISPLAYTIME 20
// How many seconds to show black between switches
#define BLACKTIME   3void loop()
{// draw a generic, no-name rainbowstatic uint8_t starthue = 0;fill_rainbow( leds + 5, NUM_LEDS - 5, --starthue, 20);// Choose which 'color temperature' profile to enable.uint8_t secs = (millis() / 1000) % (DISPLAYTIME * 2);if( secs < DISPLAYTIME) {FastLED.setTemperature( TEMPERATURE_1 ); // first temperatureleds[0] = TEMPERATURE_1; // show indicator pixel} else {FastLED.setTemperature( TEMPERATURE_2 ); // second temperatureleds[0] = TEMPERATURE_2; // show indicator pixel}// Black out the LEDs for a few secnds between color changes// to let the eyes and brains adjustif( (secs % DISPLAYTIME) < BLACKTIME) {memset8( leds, 0, NUM_LEDS * sizeof(CRGB));}FastLED.show();FastLED.delay(8);
}void setup() {delay( 3000 ); // power-up safety delay// It's important to set the color correction for your LED strip here,// so that colors can be more accurately rendered through the 'temperature' profilesFastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalSMD5050 );FastLED.setBrightness( BRIGHTNESS );
}

【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

项目十六：FastLED“100行代码”演示卷轴动画效果

实验开源代码

/*【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像素点阵屏项目十六：FastLED“100行代码”演示卷轴动画效果实验接线Module  UNOVCC —— 3.3VGND —— GNDDI —— D6*/#include <FastLED.h>FASTLED_USING_NAMESPACE// FastLED "100-lines-of-code" demo reel, showing just a few // of the kinds of animation patterns you can quickly and easily // compose using FastLED.  //// This example also shows one easy way to define multiple // animations patterns and have them automatically rotate.//// -Mark Kriegsman, December 2014#define DATA_PIN  6//#define CLK_PIN  4#define LED_TYPE  WS2811#define COLOR_ORDER GRB#define NUM_LEDS  64CRGB leds[NUM_LEDS];#define BRIGHTNESS     26#define FRAMES_PER_SECOND 120void setup() {delay(3000); // 3 second delay for recovery// tell FastLED about the LED strip configurationFastLED.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 controlFastLED.setBrightness(BRIGHTNESS);}// 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 };uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is currentuint8_t gHue = 0; // rotating "base color" used by many of the patternsvoid loop(){// Call the current pattern function once, updating the 'leds' arraygPatterns[gCurrentPatternNumber]();// send the 'leds' array out to the actual LED stripFastLED.show();  // insert a delay to keep the framerate modestFastLED.delay(1000/FRAMES_PER_SECOND); // do some periodic updatesEVERY_N_MILLISECONDS( 20 ) { gHue++; } // slowly cycle the "base color" through the rainbowEVERY_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 endgCurrentPatternNumber = (gCurrentPatternNumber + 1) % ARRAY_SIZE( gPatterns);}void rainbow() {// FastLED's built-in rainbow generatorfill_rainbow( leds, NUM_LEDS, gHue, 7);}void rainbowWithGlitter() {// built-in FastLED rainbow, plus some random sparkly glitterrainbow();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 smoothlyfadeToBlackBy( 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 trailsfadeToBlackBy( 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++) { //9948leds[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10));}}void juggle() {// eight colored dots, weaving in and out of sync with each otherfadeToBlackBy( leds, NUM_LEDS, 20);uint8_t dothue = 0;for( int i = 0; i < 8; i++) {leds[beatsin16( i+7, 0, NUM_LEDS-1 )] |= CHSV(dothue, 200, 255);dothue += 32;}}

【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

项目十七：随机60帧火焰花

实验开源代码

/*【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像素点阵屏项目十七：随机60帧火焰花实验接线Module  UNOVCC —— 3.3VGND —— GNDDI —— D6*/#include <FastLED.h>#define LED_PIN   6#define COLOR_ORDER GRB#define CHIPSET   WS2811#define NUM_LEDS  64#define BRIGHTNESS 22#define FRAMES_PER_SECOND 60bool gReverseDirection = false;CRGB leds[NUM_LEDS];void setup() {delay(3000); // sanity delayFastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );FastLED.setBrightness( BRIGHTNESS );}void loop(){// Add entropy to random number generator; we use a lot of it.// random16_add_entropy( random());Fire2012(); // run simulation frameFastLED.show(); // display this frameFastLED.delay(1000 / FRAMES_PER_SECOND);}// Fire2012 by Mark Kriegsman, July 2012// as part of "Five Elements" shown here: http://youtu.be/knWiGsmgycY// This basic one-dimensional 'fire' simulation works roughly as follows:// There's a underlying array of 'heat' cells, that model the temperature// at each point along the line. Every cycle through the simulation,// four steps are performed:// 1) All cells cool down a little bit, losing heat to the air// 2) The heat from each cell drifts 'up' and diffuses a little// 3) Sometimes randomly new 'sparks' of heat are added at the bottom// 4) The heat from each cell is rendered as a color into the leds array//   The heat-to-color mapping uses a black-body radiation approximation.//// Temperature is in arbitrary units from 0 (cold black) to 255 (white hot).//// This simulation scales it self a bit depending on NUM_LEDS; it should look// "OK" on anywhere from 20 to 100 LEDs without too much tweaking.//// I recommend running this simulation at anywhere from 30-100 frames per second,// meaning an interframe delay of about 10-35 milliseconds.//// Looks best on a high-density LED setup (60+ pixels/meter).////// There are two main parameters you can play with to control the look and// feel of your fire: COOLING (used in step 1 above), and SPARKING (used// in step 3 above).//// COOLING: How much does the air cool as it rises?// Less cooling = taller flames. More cooling = shorter flames.// Default 50, suggested range 20-100#define COOLING 55// SPARKING: What chance (out of 255) is there that a new spark will be lit?// Higher chance = more roaring fire. Lower chance = more flickery fire.// Default 120, suggested range 50-200.#define SPARKING 120void Fire2012(){// Array of temperature readings at each simulation cellstatic uint8_t heat[NUM_LEDS];// Step 1. Cool down every cell a littlefor ( int i = 0; i < NUM_LEDS; i++) {heat[i] = qsub8( heat[i], random8(0, ((COOLING * 10) / NUM_LEDS) + 2));}// Step 2. Heat from each cell drifts 'up' and diffuses a littlefor ( int k = NUM_LEDS - 1; k >= 2; k--) {heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2] ) / 3;}// Step 3. Randomly ignite new 'sparks' of heat near the bottomif ( random8() < SPARKING ) {int y = random8(7);heat[y] = qadd8( heat[y], random8(160, 255) );}// Step 4. Map from heat cells to LED colorsfor ( int j = 0; j < NUM_LEDS; j++) {CRGB color = HeatColor( heat[j]);int pixelnumber;if ( gReverseDirection ) {pixelnumber = (NUM_LEDS - 1) - j;} else {pixelnumber = j;}leds[pixelnumber] = color;}}

【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

项目十八：带有可编程调色板的 Fire2012 火灾模拟

实验开源代码

/*【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像素点阵屏项目十八：带有可编程调色板的 Fire2012 火灾模拟实验接线Module  UNOVCC —— 3.3VGND —— GNDDI —— D6*/#include <FastLED.h>#define LED_PIN   6#define COLOR_ORDER GRB#define CHIPSET   WS2811#define NUM_LEDS  64#define BRIGHTNESS 22#define FRAMES_PER_SECOND 60bool gReverseDirection = false;CRGB leds[NUM_LEDS];// Fire2012 with programmable Color Palette//// This code is the same fire simulation as the original "Fire2012",// but each heat cell's temperature is translated to color through a FastLED// programmable color palette, instead of through the "HeatColor(...)" function.//// Four different static color palettes are provided here, plus one dynamic one.// // The three static ones are: //  1. the FastLED built-in HeatColors_p -- this is the default, and it looks//   pretty much exactly like the original Fire2012.//// To use any of the other palettes below, just "uncomment" the corresponding code.////  2. a gradient from black to red to yellow to white, which is//   visually similar to the HeatColors_p, and helps to illustrate//   what the 'heat colors' palette is actually doing,//  3. a similar gradient, but in blue colors rather than red ones,//   i.e. from black to blue to aqua to white, which results in//   an "icy blue" fire effect,//  4. a simplified three-step gradient, from black to red to white, just to show//   that these gradients need not have four components; two or//   three are possible, too, even if they don't look quite as nice for fire.//// The dynamic palette shows how you can change the basic 'hue' of the// color palette every time through the loop, producing "rainbow fire".CRGBPalette16 gPal;void setup() {delay(3000); // sanity delayFastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );FastLED.setBrightness( BRIGHTNESS );// This first palette is the basic 'black body radiation' colors,// which run from black to red to bright yellow to white.gPal = HeatColors_p;// These are other ways to set up the color palette for the 'fire'.// First, a gradient from black to red to yellow to white -- similar to HeatColors_p//  gPal = CRGBPalette16( CRGB::Black, CRGB::Red, CRGB::Yellow, CRGB::White);// Second, this palette is like the heat colors, but blue/aqua instead of red/yellow//  gPal = CRGBPalette16( CRGB::Black, CRGB::Blue, CRGB::Aqua, CRGB::White);// Third, here's a simpler, three-step gradient, from black to red to white//  gPal = CRGBPalette16( CRGB::Black, CRGB::Red, CRGB::White);}void loop(){// Add entropy to random number generator; we use a lot of it.random16_add_entropy( random());// Fourth, the most sophisticated: this one sets up a new palette every// time through the loop, based on a hue that changes every time.// The palette is a gradient from black, to a dark color based on the hue,// to a light color based on the hue, to white.////  static uint8_t hue = 0;//  hue++;//  CRGB darkcolor = CHSV(hue,255,192); // pure hue, three-quarters brightness//  CRGB lightcolor = CHSV(hue,128,255); // half 'whitened', full brightness//  gPal = CRGBPalette16( CRGB::Black, darkcolor, lightcolor, CRGB::White);Fire2012WithPalette(); // run simulation frame, using palette colorsFastLED.show(); // display this frameFastLED.delay(1000 / FRAMES_PER_SECOND);}// Fire2012 by Mark Kriegsman, July 2012// as part of "Five Elements" shown here: http://youtu.be/knWiGsmgycY // This basic one-dimensional 'fire' simulation works roughly as follows:// There's a underlying array of 'heat' cells, that model the temperature// at each point along the line. Every cycle through the simulation, // four steps are performed:// 1) All cells cool down a little bit, losing heat to the air// 2) The heat from each cell drifts 'up' and diffuses a little// 3) Sometimes randomly new 'sparks' of heat are added at the bottom// 4) The heat from each cell is rendered as a color into the leds array//   The heat-to-color mapping uses a black-body radiation approximation.//// Temperature is in arbitrary units from 0 (cold black) to 255 (white hot).//// This simulation scales it self a bit depending on NUM_LEDS; it should look// "OK" on anywhere from 20 to 100 LEDs without too much tweaking. //// I recommend running this simulation at anywhere from 30-100 frames per second,// meaning an interframe delay of about 10-35 milliseconds.//// Looks best on a high-density LED setup (60+ pixels/meter).////// There are two main parameters you can play with to control the look and// feel of your fire: COOLING (used in step 1 above), and SPARKING (used// in step 3 above).//// COOLING: How much does the air cool as it rises?// Less cooling = taller flames. More cooling = shorter flames.// Default 55, suggested range 20-100 #define COOLING 55// SPARKING: What chance (out of 255) is there that a new spark will be lit?// Higher chance = more roaring fire. Lower chance = more flickery fire.// Default 120, suggested range 50-200.#define SPARKING 120void Fire2012WithPalette(){// Array of temperature readings at each simulation cellstatic uint8_t heat[NUM_LEDS];// Step 1. Cool down every cell a littlefor( int i = 0; i < NUM_LEDS; i++) {heat[i] = qsub8( heat[i], random8(0, ((COOLING * 10) / NUM_LEDS) + 2));}// Step 2. Heat from each cell drifts 'up' and diffuses a littlefor( int k= NUM_LEDS - 1; k >= 2; k--) {heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2] ) / 3;}// Step 3. Randomly ignite new 'sparks' of heat near the bottomif( random8() < SPARKING ) {int y = random8(7);heat[y] = qadd8( heat[y], random8(160,255) );}// Step 4. Map from heat cells to LED colorsfor( int j = 0; j < NUM_LEDS; j++) {// Scale the heat value from 0-255 down to 0-240// for best results with color palettes.uint8_t colorindex = scale8( heat[j], 240);CRGB color = ColorFromPalette( gPal, colorindex);int pixelnumber;if( gReverseDirection ) {pixelnumber = (NUM_LEDS-1) - j;} else {pixelnumber = j;}leds[pixelnumber] = color;}}