控制LED闪烁:代码通过控制数字引脚13(大多数Arduino板上连接了一个内置LED)的电平高低,使LED灯以1秒亮、1秒灭的频率不断闪烁。 代码逐行解释 1. 注释部分 功能:让一个LED灯每秒闪烁一次,即亮1秒,灭1秒,不断重复。 /* Blink Turns on an LED on for one second, then off for one second, repeatedly. This...
UNO板上标有L的LED。这段测试代码就是让这个LED灯闪烁。 插上USB线,打开Arduino IDE后,找到“Blink”代码。 通常,写完一段代码后,我们都需要校验一下,看看代码有没有错误。点击“校验”。 下图显示了正在校验中。 校验完毕! 由于是样例代码,所以校验不会有错误,不过在以后写代码的过程中,输入完代码,都需要校验...
加载“Blink”例程 你可能会发现你的Arduino板的“L”LED已经在你连接USB插头的时候闪烁了。这是因为Arduino主板通常都是预先安装了“Blink”程序。 在这节课中,我们将用我们自己的Blink程序重新编程Arduino,然后改变它闪烁的速度。 在第0课中,你安装了Arduino IDE,并确保你能找到正确的串口来连接Arduino板。现在是...
After you build the circuit plug your Arduino board into your computer, start the Arduino Software (IDE) and enter the code below. You may also load it from the menu File/Examples/01.Basics/Blink . The first thing you do is to initialize LED_BUILTIN pin as an output pin with the line...
/*BlinkTurns on an LED on for one second, then off for one second, repeatedly. This example code is in the public domain.*/ // Pin 13 has an LED connected on most Arduino boards.// give it a name:intled =13; // the setup routine runs once when you press reset:voidsetup(){/...
* After upload the LED on the board should start to flash slowly (on for1sec off for1sec) * * Open the SerialMonitorandfollow the on screen instructions * * If the version of the bootloader that is containedinthis sketch is already installed, ...
然后，我们需要将先前保存的blink验证ID放入auth []数组中。char auth[] = "HoLYSq-SGJAafQUQXXXXXXXX...
五)blink程序 Blink示例程序如下: /* Blink Turns on an LED on for one second,then off for one second,repeatedly. This example code is in the public do main. */ //Pin13 has an LED connected on most Arduino boards. //give it a name: ...
以下代码用 millis()函数来闪烁LED灯,如果开发板开始运行,会返回微秒的数值 /* Blink without Delay Turns on and off a light emitting diode (LED) connected to a digital pin, without using the delay() function. This means that other code
for latest code."#endif#defineDATA_PIN 3//#define CLK_PIN 4#defineLED_TYPE WS2812#defineCOLOR_ORDER GRB#defineNUM_LEDS 30CRGB leds[NUM_LEDS];#defineBRIGHTNESS 96#defineFRAMES_PER_SECOND 120voidsetup(){delay(3000);// 3 second delay for recovery// tell FastLED about the LED strip ...