为了解决这个问题，我买了一个 Arduino Uno 来运行标准（非 LED）灯，与运行 Arduino MEGA 2560 的 LED 灯分开运行。非 LED 灯在 Vixen Lights 软件中的一个控制器上运行.控制器有 4 个输出（通道），每个非 LED 灯组一个。每个通道将控制固态继电器上的一条线路。 Arduino Uno 使用此代码运行继电器；
#define PIN1 7 //Pin number seven
#define PIN2 6 //Pin number six
#define PIN3 5 //Pin number five
#define PIN4 4 //Pin number four
#define BAUD_RATE 9600 //just running 4 relay switches so we don't need much speed
#define CHANNEL_COUNT 4 //there are 4 channels coming from the Vixen controller
int bt[4]; //a variable we will use in the loop section of code
int x; //another variable we will use in the loop section of code
void setup() {
delay(1000); //a little delay to give Uno some time on startup
Serial.begin(BAUD_RATE); //set the baud rate of the serial stream
pinMode(PIN1, OUTPUT); //set the four pins on the Arduino Uno to output
pinMode(PIN2, OUTPUT);
pinMode(PIN3, OUTPUT);
pinMode(PIN4, OUTPUT);
}
void loop() {
if (Serial.available() >= CHANNEL_COUNT) {
for (X = 0; x < CHANNEL_COUNT; x++) { //for every channel...
bt[x] = Serial.read(); //we read a byte from the serial stream buffer and store it in an array for later use
}
digitalWrite(PIN1, bt[0]); //we tell the pins on the arduino what to do...
digitalWrite(PIN2, bt[1]); //using the array of integers that holds the byte values from the serial stream...
digitalWrite(PIN3, bt[2]);
digitalWrite(PIN4, bt[3]);
}
}
LED 由 Vixen Lights 软件中的第二个控制器运行。我有两个 WS2811 类型的 12 伏、50 像素 LED 灯条。 Arduino 使用可以从 FastLED.io 免费下载的 FastLED 库。我发现 LED 灯条的串行流中有一个字节的垃圾数据，我必须越过那个字节的数据，以便 LED 接收正确的数据字节来控制它们的颜色、位置等等。我使用此代码在 Arduino MEGA 2560 上运行我的 LED；
#include <FastLED.h> //include the FastLED library in the Arduino project
#define LED_PIN1 7 //I am going to run one strip of 50 LEDs off of pin 7 on the MEGA
#define LED_PIN2 6 //I am going to run a second strip of 50 LEDs off of pin 6 on the MEGA
#define BAUD_RATE 115200
#define NUM_LEDS 50
//It took me some time to figure out that my two pixel strips are set
//to different color codes. Why? I don't know, but they are.
#define RGB_ORDER RGB //one of my pixel strips is set to use RGB color codes
#define BRG_ORDER BRG //the second strip came from the factory with BRG color codes
#define LED_TYPE WS2811 //what type of LEDs are they? Mine are WS2811, yours may be different.
//create an array to hold the FastLED CRBG code for each of the 50 pixels in the
//first strip.
CRGB leds1[NUM_LEDS];
//create another array to hold the FastLED CRBG codes for each of the 50 pixels in
//the second strip.
CRGB leds2[NUM_LEDS];
int g; //a variable we will use in the loop section
int bufferGarbage[1]; //THIS IS THE KEY TO MAKING THIS WHOLE THING WORK. WE NEED TO
//GET PAST THE FIRST MYSTERY BYTE THAT IS SENT TO THE ARDUINO MEGA FROM THE VIXEN
//LIGHTS SOFTWARE. So we create a variable we will use in the loop section of code.
void setup() {
delay(1000);
Serial.begin(BAUD_RATE);
pinMode(LED_PIN1, OUTPUT); //set our pins to output. PIN1 is pin 6 on the Arduino board.
pinMode(LED_PIN2, OUTPUT); //set our pins to output. PIN2 is pin 7 on the Arduino board.
//This line sets up the first pixel strip to run using FastLED
FastLED<LED_TYPE, LED_PIN1, RGB_ORDER>(leds1, NUM_LEDS).setCorrection(TypicalLEDStrip);
//This line sets up the second pixel strip to run using FastLED
FastLED<LED_TYPE, LED_PIN2, BRG_ORDER>(leds2, NUM_LEDS).setCorrection(TypicalLEDStrip);
}
void loop() {
if (Serial.available() >= 0) { //if there is data in the serial stream
//bufferGarbage is to capture the first byte of garbage that comes across.
//Without this the LED's are out of sync.
//In my case if I didn't capture this byte the first pixel on my
//second LED strip would match the color code that should be on the last
//pixel of the first strip. We don't do anything with this byte.
//but we need to read it from the serial stream so we can move to the
//next byte in the stream.
bufferGarbage[0] = Serial.read();
//then we need to populate the leds1 array so FastLED can tell the pixels what to do.
//We have 50 pixels in the strip and each pixel has a CRGB property that uses
//a red, green, and blue attribute. So for each LED we need to capture 3
//bytes from the serial stream. 50 LEDs * 3 bytes each means we need to read
//150 bytes of data from the serial stream.
for (g = 0; g < NUM_LEDS; g++) {
Serial.readBytes( ( char*)(&leds1[g], 3);
}
for (g = 0; g < NUM_LEDS; g++) {//then we read the next 150 bytes for the second strip of LEDs
Serial.readBytes( ( char*)(&leds2[g], 3);
}
FastLED.show(); //then we tell FastLED to show the pixels!
}
}