I-WS2812B: umugqa we-RGB wemilingo we-LED

Ngokuqinisekile udinga ukwengeza ukuthinta kombala kumaphrojekthi wakho we-DIY. Ngalokhu, abenzi abaningi basebenzisa abadumile Imichilo ye-WS2812B RGB LED, ongazuza ngayo ukulawulwa kombala okuhlukahlukene nemiphumela yokukhanyisa ekhangayo kumaphrojekthi wakho. Vele yimichilo ehambisana ngokuphelele namabhodi e-Arduino, ngakho-ke ngeke ube nenkinga lapho uzama ukuwahlanganisa.

Ungabathola ku- ubude bemitha elingu-1, ngokwesibonelo, yize zingahluka ngokuya ngohlobo lokuminyana kwama-LED emitha ngayinye anayo. Isibonelo, kukhona kusuka kuma-LED angama-30 kuye kuma-LED ayi-144. Kodwa-ke, uma udinga ubude obude ukuthola indawo enkulu, unezinye izinketho emakethe njengamaphaneli we-RGB LED noma ungahlala usebenzisa imichilo eminingana ...

Le micu ayilutho nje uchungechunge lwama-RGB e-LED ahlanganisiwe futhi agibele ukusekelwa okuvamile ukuwahlukanisa abe yimichilo. Kepha ukusebenza kwayo kufana nama-RGB LED ahlukile.

Imininingwane engaphezulu ngama-RGB LEDs

Yini i-WS2812B?

Empeleni i-WS2812B akuyona umugqa uqobo, kepha ngayinye ye amaseli noma amapuleti amancane e-RGB LED afaka. Zingaqoqwa ngendlela yomucu noma iphaneli, ukuze ukwazi ukwenza ukucushwa okuhlukahlukene ngokuya ngenombolo nokuma kwazo. Imichilo eyakha yimichilo eguquguqukayo, kepha futhi ungathola i-WS2812B kumaphaneli we-PCB angekho.

Uma ufuna, ungathola amadivayisi WS2812B ngokwehlukana ukwakha ubujamo obudinga wena. Isibonelo, cishe amayunithi ayi-100 awo ngokuvamile abiza ngaphezu kuka- € 10.

Kufanele wazi futhi ukuthi uyabaphonsa ungazisika ngesikele nomaphi lapho udinga khona, lokho akusho ukuthi bayeke ukusebenza. Ngakho-ke ungaba nama-RGB ama-LED owadingayo kuphela. Eqinisweni, inezimpawu ezithile (ama-pads amathathu ethusi) ongazisika. Uma usika la maphedi, uzoba namathrekhi amathathu kolunye uhlangothi lwesiqeshana nakwelinye icala uma kwenzeka ufuna ukusebenzisa ezinye izingcezu, kuzo ungazifaka izikhonkwane ukuze uxhume kalula.

I-pinout ne-datasheet

Kuyiseli elizimele le-WS2812B elinokufakwayo nemiphumela yalo

Ngeminye imininingwane mayelana ne- Umugqa we-RGB LED WS2812B Ungafunda imininingwane yedatha okunikezwe ngumenzi ngamunye, lapho ungathintana nayo yonke imininingwane yobukhulu nezimpawu zobuchwepheshe ukuze wazi ukuthi uzisebenzisa kanjani kahle, ngaphezu kokwazi wonke amabanga okusebenza nemikhawulo.

Landa i-WS2812B datasheet

Ngokuqondene ne ukukhiphaAkuyona inkinga enkulu futhi, le micu inokuxhumeka okulula ongakwazi ukukwenza kusukela ekuqaleni ngaphandle kolwazi oluningi. Zintathu kuphela ezitholakalayo, yize iseli ngalinye le-WS2812B linokuxhumana okuningi ...

Kumelwe nje xhuma kumucu ngamunye iphini le-Vcc elondla umucu liye ku-5V kusuka ku-Arduino noma kusuka kugesi ohlukile, i-GND phansi, kunjalo, futhi ekugcineni i-DI okungenye ezoya kunoma yikuphi ukukhishwa kwe-microcontroller ukwenza kusebenze Ama-RGB LED emgqeni.

Uma ubheka iseli le-WS2812B Uzobona ukuthi inokufakwa kweDatha In noma i-DI, namandla weVcc ne-GND. Ngemuva kwalokho izoba neminye imiphumela emithathu, lokhu kuzoxhunyaniswa neseli elilandelayo lomugqa, bese iseli elilandelayo lizoba nemiphumela yalo exhunywe kokufakwayo okulandelayo nokunye kuze kuqedwe umucu wonke ...

Kunjalo impela I-DI noma ukufaka idatha leyo ethakazelisa ukumisa ama-RGB LEDs, futhi yona leyo izoxhunywa kuDatha Out noma DO ezothatha leyo mininingwane efanayo kusixhumanisi esilandelayo esiqeshini. Futhi-ke isakazeka kuwo wonke umucu.

Thenga ama-WS2812B RGB LED Strips

Ungakwazi thenga ngentengo engekho phezulu kakhulu ezitolo ezahlukahlukene ezikhethekile. Unazo futhi e-Amazon ngezindlela ezahlukahlukene. Ezinye izibonelo yilezi:

Ukuhlolwa nge-Arduino ne-WS2812B

Njengoba ungacabanga, ngezikhonkwane ezintathu kuphela kulula kakhulu ukukwenza xhuma ku-arduino njengoba ubona kumdwebo ongenhla. Kufanele nje uxhume i-5v ne-GND kumugqa we-WS2812B, ne-DI kokukhiphayo okufunayo ku-Arduino. Khumbula ukuthi uma uguqula iphini kufanele futhi ushintshe ikhodi yomthombo ukuze uhlelo lusebenze kahle.

Umtapo wezincwadi usetshenzisiwe I-FAST-LED Master ukwenza izinto zibe lula futhi uthole imisebenzi elula ukushayela ama-RGB LEDs. Ukuyilanda futhi uyihlanganise kahle kwi-Arduino IDE, vele ulande umtapo wezincwadi kusuka kuleso sixhumanisi, bese uvula iziphu bese uqamba kabusha umkhombandlela noma ifolda njengo-FastLED, bese uhambisa leyo folda lapho kufakwe khona imitapo yolwazi ye-Arduino IDE ekufakweni kwakho . Bese uvule kabusha i-Arduino IDE futhi izolunga ...

Ngokuqondene ne ikhodi emfushane, kungaba lula njengekhodi elandelayo. Uma ungafuni ukukopisha nokunamathisela, ungakuthola phakathi kwezibonelo eza vele. Ngakho-ke iya ku-File> Examples> FastLED> ColourPalette.

Khumbula ukushintsha i-pin 14 isuke kusibonelo iye ku-5 okuyiyona engiyisebenzise kumdwebo. Noma ungaxhuma kuphini we-14 futhi uvikele ukuguqula ikhodi. Njengoba uthanda.

#include <FastLED.h>

#define LED_PIN     5
#define NUM_LEDS    14
#define BRIGHTNESS  64
#define LED_TYPE    WS2811
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];

#define UPDATES_PER_SECOND 100

// 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
};



// Additionl 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.

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I-WS2812B: umugqa wemilingo we-RGB LED

Yini i-WS2812B?

I-pinout ne-datasheet

Thenga ama-WS2812B RGB LED Strips

Ukuhlolwa nge-Arduino ne-WS2812B

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