“彩色LED模块”的版本间的差异
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=== 产品简介 === | === 产品简介 === | ||
| − | 彩色LED模块采用4 | + | 彩色LED模块采用4 颗 WS2812(RGB全 彩 高亮LED)制作完成。WS2812是一个集控制电路与发光电路于一体的智能外控LED光源 |
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=== 引脚说明 === | === 引脚说明 === | ||
| − | *1. Gnd | + | *1. G -- Gnd(地) |
| − | *2. Vcc | + | *2. V -- Vcc(电源+5V) |
| − | *3. Sign | + | *3. S -- Sign(信号) |
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| + | :'''电路连接示意图''' | ||
| + | [[Image:Sensor Shield.jpg|400px|center|扩展板]] | ||
| + | :'''示例代码''' | ||
| + | <pre > | ||
| + | #include <Adafruit_NeoPixel.h> | ||
| + | #define Red Color(255,0,0) | ||
| + | #define Green Color(0,255,0) | ||
| + | #define Blue Color(0,0,255) | ||
| + | #define PIN 5 | ||
| + | #define NUMPIXELS 4 | ||
| + | |||
| + | // Parameter 1 = number of pixels in strip | ||
| + | // Parameter 2 = 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) | ||
| + | Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800); | ||
| + | |||
| + | int delayval = 500; // delay for half a second | ||
| + | |||
| + | 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 | ||
| + | |||
| + | pixels.begin(); // This initializes the NeoPixel library. | ||
| + | pixels.show(); | ||
| + | } | ||
| + | |||
| + | void loop() { | ||
| + | lightLED(pixels.Red); //Order lit the red light | ||
| + | lightLED(pixels.Green); //Order lit the green light | ||
| + | lightLED(pixels.Blue); //Order lit the blue light | ||
| + | } | ||
| + | |||
| + | void lightLED(uint32_t c) { | ||
| + | // For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one. | ||
| + | for (int i = 0; i < NUMPIXELS; i++) { | ||
| + | // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255 | ||
| + | pixels.setPixelColor(i, c); // Moderately bright green color. | ||
| + | pixels.show(); // This sends the updated pixel color to the hardware. | ||
| + | delay(delayval); // Delay for a period of time (in milliseconds). | ||
| + | } | ||
| + | } | ||
| + | </pre> | ||
| + | 程序下载地址:[http://pan.baidu.com/s/1qW1MiLm simpleExample_ColorLED] | ||
| + | |||
| + | 程序演示效果地址:[[点亮LED]] | ||
2015年8月28日 (五) 16:43的版本
产品简介
彩色LED模块采用4颗 WS2812(RGB全彩高亮LED)制作完成。WS2812是一个集控制电路与发光电路于一体的智能外控LED光源
规格参数
- 供电电压:DC4~30V
- 灵敏度:10mV/℃
- 精度:0.5℃ (在+25℃时)
- 测量温度范围:0℃ ~ 100℃
- 安装孔径:3MM
- 模块尺寸:28*21*1.6MM (长*宽*高)
- 孔间距:15MM
- 模块重量:2.2g
引脚说明
- 1. G -- Gnd(地)
- 2. V -- Vcc(电源+5V)
- 3. S -- Sign(信号)
应用示例
- 电路连接示意图
- 示例代码
#include <Adafruit_NeoPixel.h>
#define Red Color(255,0,0)
#define Green Color(0,255,0)
#define Blue Color(0,0,255)
#define PIN 5
#define NUMPIXELS 4
// Parameter 1 = number of pixels in strip
// Parameter 2 = 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)
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
int delayval = 500; // delay for half a second
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
pixels.begin(); // This initializes the NeoPixel library.
pixels.show();
}
void loop() {
lightLED(pixels.Red); //Order lit the red light
lightLED(pixels.Green); //Order lit the green light
lightLED(pixels.Blue); //Order lit the blue light
}
void lightLED(uint32_t c) {
// For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
for (int i = 0; i < NUMPIXELS; i++) {
// pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
pixels.setPixelColor(i, c); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
}
程序下载地址:simpleExample_ColorLED
程序演示效果地址:点亮LED
参考资料
- WS2812说明书-英文
- WS2812说明书-中文
- 规格表合集 - 5050LED/WS2801/WS2811/WS2812 下载:LED_Specification_sheets
- Arduino-WS2812库-FastLED
- Arduino-WS2812库-FastLED
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