请问这段小爱同学的示例代码控制的rgb是8266的哪几个引脚？

大爷

https://github.com/blinker-iot/blinker-library/blob/master/examples/Blinker_MIOT/MIOT_LIGHT/MIOT_LIGHT.ino

这段示例代码里面也没有注释，研究了3天实在是看不懂啊，只会开关和调亮度

#define BLINKER_WIFI

	#define BLINKER_MIOT_LIGHT
	#include <Blinker.h>
	char auth[] = "Your Device Secret Key";
	char ssid[] = "Your WiFi network SSID or name";
	char pswd[] = "Your WiFi network WPA password or WEP key";
	// Download Adafruit_NeoPixel library here:
	// https://github.com/adafruit/Adafruit_NeoPixel
	#include <Adafruit_NeoPixel.h>
	#define PIN            2
	#define NUMPIXELS      24
	Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
	#define RGB_1 "RGBKey"
	BlinkerRGB WS2812(RGB_1);
	uint8_t colorR, colorG, colorB, colorW;
	bool wsState;
	uint8_t wsMode = BLINKER_CMD_MIOT_DAY;
	void pixelShow()
	{
	pixels.setBrightness(colorW);
	for(int i = 0; i < NUMPIXELS; i++){
	pixels.setPixelColor(i, colorR, colorG, colorB);
	}
	pixels.show();
	}
	void ws2812_callback(uint8_t r_value, uint8_t g_value, uint8_t b_value, uint8_t bright_value)
	{
	digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
	BLINKER_LOG("R value: ", r_value);
	BLINKER_LOG("G value: ", g_value);
	BLINKER_LOG("B value: ", b_value);
	BLINKER_LOG("Rrightness value: ", bright_value);
	colorR = r_value;
	colorG = g_value;
	colorB = b_value;
	colorW = bright_value;
	pixelShow();
	}
	uint32_t getColor()
	{
	uint32_t color = colorR << 16 | colorG << 8 | colorB;
	return color;
	}
	void miotPowerState(const String & state)
	{
	BLINKER_LOG("need set power state: ", state);
	if (state == BLINKER_CMD_ON) {
	digitalWrite(LED_BUILTIN, HIGH);
	BlinkerMIOT.powerState("on");
	BlinkerMIOT.print();
	wsState = true;
	if (colorW == 0) colorW = 255;
	}
	else if (state == BLINKER_CMD_OFF) {
	digitalWrite(LED_BUILTIN, LOW);
	BlinkerMIOT.powerState("off");
	BlinkerMIOT.print();
	wsState = false;
	}
	pixelShow();
	}
	void miotColor(int32_t color)
	{
	BLINKER_LOG("need set color: ", color);
	colorR = color >> 16 & 0xFF;
	colorG = color >>  8 & 0xFF;
	colorB = color       & 0xFF;
	BLINKER_LOG("colorR: ", colorR, ", colorG: ", colorG, ", colorB: ", colorB);
	pixelShow();
	BlinkerMIOT.color(color);
	BlinkerMIOT.print();
	}
	void miotMode(uint8_t mode)
	{
	BLINKER_LOG("need set mode: ", mode);
	if (mode == BLINKER_CMD_MIOT_DAY) {
	// Your mode function
	}
	else if (mode == BLINKER_CMD_MIOT_NIGHT) {
	// Your mode function
	}
	else if (mode == BLINKER_CMD_MIOT_COLOR) {
	// Your mode function
	}
	else if (mode == BLINKER_CMD_MIOT_WARMTH) {
	// Your mode function
	}
	else if (mode == BLINKER_CMD_MIOT_TV) {
	// Your mode function
	}
	else if (mode == BLINKER_CMD_MIOT_READING) {
	// Your mode function
	}
	else if (mode == BLINKER_CMD_MIOT_COMPUTER) {
	// Your mode function
	}
	wsMode = mode;
	BlinkerMIOT.mode(mode);
	BlinkerMIOT.print();
	}
	void miotBright(const String & bright)
	{
	BLINKER_LOG("need set brightness: ", bright);
	colorW = bright.toInt();
	BLINKER_LOG("now set brightness: ", colorW);
	pixelShow();
	BlinkerMIOT.brightness(colorW);
	BlinkerMIOT.print();
	}
	void miotColoTemp(int32_t colorTemp)
	{
	BLINKER_LOG("need set colorTemperature: ", colorTemp);
	BlinkerMIOT.colorTemp(colorTemp);
	BlinkerMIOT.print();
	}
	void miotQuery(int32_t queryCode)
	{
	BLINKER_LOG("MIOT Query codes: ", queryCode);
	switch (queryCode)
	{
	case BLINKER_CMD_QUERY_ALL_NUMBER :
	BLINKER_LOG("MIOT Query All");
	BlinkerMIOT.powerState(wsState ? "on" : "off");
	BlinkerMIOT.color(0);
	BlinkerMIOT.mode(0);
	BlinkerMIOT.colorTemp(1000);
	BlinkerMIOT.brightness(1);
	BlinkerMIOT.print();
	break;
	case BLINKER_CMD_QUERY_POWERSTATE_NUMBER :
	BLINKER_LOG("MIOT Query Power State");
	BlinkerMIOT.powerState(wsState ? "on" : "off");
	BlinkerMIOT.print();
	break;
	case BLINKER_CMD_QUERY_COLOR_NUMBER :
	BLINKER_LOG("MIOT Query Color");
	BlinkerMIOT.color(0);
	BlinkerMIOT.print();
	break;
	case BLINKER_CMD_QUERY_MODE_NUMBER :
	BLINKER_LOG("MIOT Query Mode");
	BlinkerMIOT.mode(0);
	BlinkerMIOT.print();
	break;
	case BLINKER_CMD_QUERY_COLORTEMP_NUMBER :
	BLINKER_LOG("MIOT Query ColorTemperature");
	BlinkerMIOT.colorTemp(1000);
	BlinkerMIOT.print();
	break;
	case BLINKER_CMD_QUERY_BRIGHTNESS_NUMBER :
	BLINKER_LOG("MIOT Query Brightness");
	BlinkerMIOT.brightness(1);
	BlinkerMIOT.print();
	break;
	default :
	BlinkerMIOT.powerState(wsState ? "on" : "off");
	BlinkerMIOT.color(0);
	BlinkerMIOT.mode(0);
	BlinkerMIOT.colorTemp(1000);
	BlinkerMIOT.brightness(1);
	BlinkerMIOT.print();
	break;
	}
	}
	void dataRead(const String & data)
	{
	BLINKER_LOG("Blinker readString: ", data);
	Blinker.vibrate();
	uint32_t BlinkerTime = millis();
	Blinker.print("millis", BlinkerTime);
	}
	void setup()
	{
	Serial.begin(115200);
	BLINKER_DEBUG.stream(Serial);
	BLINKER_DEBUG.debugAll();
	pinMode(LED_BUILTIN, OUTPUT);
	digitalWrite(LED_BUILTIN, LOW);
	Blinker.begin(auth, ssid, pswd);
	Blinker.attachData(dataRead);
	BlinkerMIOT.attachPowerState(miotPowerState);
	BlinkerMIOT.attachColor(miotColor);
	BlinkerMIOT.attachMode(miotMode);
	BlinkerMIOT.attachBrightness(miotBright);
	BlinkerMIOT.attachColorTemperature(miotColoTemp);
	BlinkerMIOT.attachQuery(miotQuery);
	pinMode(14, OUTPUT);
	digitalWrite(14, HIGH);
	pinMode(15, OUTPUT);
	digitalWrite(15, HIGH);
	colorR = 255;
	colorG = 255;
	colorB = 255;
	colorW = 0;
	wsState = true;
	pixels.begin();
	pixels.setBrightness(colorW);
	WS2812.attach(ws2812_callback);
	pixelShow();
	}
	void loop()
	{
	Blinker.run();
	for(int i = 0; i < NUMPIXELS; i++){
	pixels.setPixelColor(i, colorR, colorG, colorB);
	}
	pixels.show();
	}

求大神帮忙加注释，主要是控制的哪三个引脚？

这段代码是控制共阴极rgb的吧？

edayer

#define PIN            2

大爷

edayer 发表于 2020-2-12 16:30
#define PIN            2

rgb应该3个引脚啊

jh800215

RGB是1个信号脚，3个脚分别是VCC，GND，DAT。。。。。去度以下ws2812就知道了

dlhanjian

WS2812用了2脚，还用了个LED脚，但是不明白14，15脚是干嘛的？