實際實驗環境
參考資料
函式庫網址如下
請將網址資料打包放至如下資料夾
"C:\Users\___XXXX___\Documents\Arduino\libraries"
接線方式
今天採用的是Arduino NANO + WS2812 RGB LED燈條
燈條上的DOUT是用來串接後面的燈條用的
******************接線方式******************
NANO WS2812燈條
+5V------------------VCC
D6------------------DIN
GND------------------GND
********************************************
******************接線方式******************
NANO WS2812燈條
+5V------------------VCC
D6------------------DIN
GND------------------GND
********************************************
範例程式
如果想要更多的顏色變化,可以自行修改
由於我實驗的LED燈條有兩顆燒壞了,所以有修改過LED的總數
// NeoPixel Ring simple sketch (c) 2013 Shae Erisson
// released under the GPLv3 license to match the rest of the AdaFruit NeoPixel library
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h>
#endif
// Which pin on the Arduino is connected to the NeoPixels?
// On a Trinket or Gemma we suggest changing this to 1
#define PIN 6
// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS 6
// When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals.
// Note that for older NeoPixel strips you might need to change the third parameter--see the strandtest
// example for more information on possible values.
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
int delayval = 1000; // 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.
}
void loop() {
mode_1();
mode_2();
mode_3();
mode_4();
}
void mode_1(){
int mode_i=0;
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(20,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,20,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,0,20)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
}
}
void mode_2(){
int mode_i=0;
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(20,0,0)); // Moderately bright green color.
//pixels.setPixelColor((mode_i+NUMPIXELS-1)%NUMPIXELS, pixels.Color(0,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,20,0)); // Moderately bright green color.
//pixels.setPixelColor((mode_i+NUMPIXELS-1)%NUMPIXELS, pixels.Color(0,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,0,20)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
}
void mode_3(){
int mode_i=0;
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(20,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
for(mode_i=NUMPIXELS-1;mode_i>0;mode_i--){
pixels.setPixelColor(mode_i, pixels.Color(20,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,20,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
for(mode_i=NUMPIXELS-1;mode_i>0;mode_i--){
pixels.setPixelColor(mode_i, pixels.Color(0,20,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
for(mode_i=0;mode_i<NUMPIXELS;mode_i++){
pixels.setPixelColor(mode_i, pixels.Color(0,0,20)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
for(mode_i=NUMPIXELS-1;mode_i>0;mode_i--){
pixels.setPixelColor(mode_i, pixels.Color(0,20,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(200); // Delay for a period of time (in milliseconds).
pixels.setPixelColor(mode_i, pixels.Color(0,0,0)); // Moderately bright green color.
}
}
void mode_4(){
int mode_i=0,LED_R=0,LED_G=0,LED_B=0;
for(mode_i=0;mode_i<50;mode_i++){
pixels.setPixelColor(0, pixels.Color(mode_i,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(40); // Delay for a period of time (in milliseconds).
}
for(mode_i=50;mode_i>0;mode_i--){
pixels.setPixelColor(0, pixels.Color(mode_i,0,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(40); // Delay for a period of time (in milliseconds).
}
for(mode_i=0;mode_i<50;mode_i++){
pixels.setPixelColor(0, pixels.Color(0,mode_i,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(40); // Delay for a period of time (in milliseconds).
}
for(mode_i=50;mode_i>0;mode_i--){
pixels.setPixelColor(0, pixels.Color(0,mode_i,0)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(40); // Delay for a period of time (in milliseconds).
}
for(mode_i=0;mode_i<50;mode_i++){
pixels.setPixelColor(0, pixels.Color(0,0,mode_i)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(40); // Delay for a period of time (in milliseconds).
}
for(mode_i=50;mode_i>0;mode_i--){
pixels.setPixelColor(0, pixels.Color(0,0,mode_i)); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(40); // Delay for a period of time (in milliseconds).
}
}
實際測試影片
未來可行的應用
- 居家的氣氛燈設計
- 汽車、機車的可動車尾燈
- 環境中各種可以透過LED變化的應用
- 生活裝置藝術
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