void setLedBrightness(int brightness) { // 设置LED亮度 analogWrite(ledPin, brightness); } 五、代码解释 const int sensorPin = A0; 和const int ledPin = 9; 定义了光敏传感器和LED灯连接的Arduino引脚。 int sensorValue = 0; 和int led
// 灯光亮度控制回调函数voidmiotBright(constString&bright){BLINKER_LOG("need set brightness: ",bright);// 打印需要设置的亮度uint8_tcolorW=bright.toInt();BLINKER_LOG("now set brightness: ",colorW);// 在此处我们可以根据实际情况添加一些控制的代码,比如:通过修改PWM占空比的值,从而达到调节灯亮度的...
FastLED.setBrightness(60-2*i); FastLED.show(); delay (50); } } 校准后,LED灯带的所有LED都真是显示了函数赋值,即红色。 Arduino WS2812B LED灯带全部显示红色代码: #include <FastLED.h> #define LED_PIN 2 #define NUM_LEDS 12 CRGB leds[NUM_LEDS]; void setup() { FastLED.addLeds<WS2812, ...
LEDS.addLeds(leds,LEDS_NUM);//初始化灯带FastLED.setBrightness(bright); }voidloop(){for(inti =0;i <= LEDS_NUM; i++ ){ leds[i] = CRGB::Red;//设置灯带中第一个灯珠颜色为红色FastLED.show();//更新LED色彩delay(50);//等待500毫秒leds[i] = CRGB::Green;//设置灯带中第一个灯珠颜色为...
FastLED.setBrightness(BRIGHTNESS);// global brightness } // switches off all LEDs void showProgram...
LED_PIN:控制板上使用的IO端口 GRB:色彩类型 leds:光带 NUM_LEDS:灯珠的总数量 2.FastLED.show(); 刷新灯的色彩显示 3.FastLED.clear(); 将所有灯熄灭 4.FastLED.setBrightness(30) 设置灯带亮度,最大为255 5.fill_solid(leds, 30, CRGB::Red) ...
LedP10 myled; void setup(){ myled.init(3,4,8,9,1); } void loop() { if(num1==50){ myled.setbrightness(50); } myled.showmsg_single_static(num1,0); num1+=1; delay(500); } Arduino实验场景图 Arduino参考开源代码之三
in this case to control the brightness of an LED. The data is sent in individual bytes, each of which ranges from 0 to 255. Arduino reads these bytes and uses them to set the brightness of the LED. The circuit: LED attached from digital pin 9 to ground. ...
setBrightness(50); strip.show(); // Initialize all pixels to 'off' } void loop() { // Some example procedures showing how to display to the pixels: colorWipe(strip.Color(255, 0, 0), 500); // Red colorWipe(strip.Color(0, 255, 0), 500); // Green colorWipe(strip.Color(0, ...
18 SET 通过一个电阻连接到VDD 来提高段电流。 19 V+ 正极电压输入,+5V 24 DOUT 串行数据输出端口,从DIN输入的数据在16.5个时钟周期后在此端有效。当使用多个MAX7219/MAX7221时用此端方便扩展。 MAX7219功能特点 1 10MHz连续串行口 2 独立的LED段控制 ...