OI Lab课程 幻彩灯编程

插件下载地址:http://yufei.ma/uploads/Adafruit_NeoPixe.zip


光敏模块代码

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#include <Adafruit_NeoPixel.h>
/* 硬件连接方式
------------------
灯条 - 开发板
D0 - 6号引脚
VCC - Vin
GND - GND
-------------------
光敏传感器 - 开发板
D0 - 2号引脚
VCC - VCC
GND - GND
*/
#define PIN 6
#define hzPin 2
int hzState = 0;
// 参数1 = 灯条的数量
// 参数2 = 灯条D0连接的引脚
// 参数3 = 灯条类型
Adafruit_NeoPixel strip = Adafruit_NeoPixel(16, PIN, NEO_GRB + NEO_KHZ800);
void setup() {
pinMode(hzPin, INPUT);
strip.begin();
strip.show(); // Initialize all pixels to 'off'
}
void loop() {
hzState = digitalRead(hzPin);
if (hzState == LOW){
//关闭灯
strip.clear();
strip.show();
} else {
//打开灯
effect();
}
}
//在effect()选择你想要的是效果,想要的效果把双斜杠"//"去掉
void effect() {
// 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);
}