LED灯:大多数Arduino板(如Arduino Uno)在数字引脚13上已经内置了一个LED灯,因此无需额外连接硬件。 如果需要连接外部LED灯,可以将LED的长脚(正极)连接到数字引脚13,短脚(负极)通过一个限流电阻(如220Ω)连接到GND。 运行结果 当代码上传到Arduino板并运行后,连接在数字引脚13上的LED灯会以每秒闪烁一次的频率不...
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...
LED was updated // constants won't change: const long interval = 1000; // interval at which to blink (milliseconds) void loop() { // here is where you'd put code that needs to be running all the time. // check to see if it's time to blink the LED; that is, if the ...
1、blink代码实验 点击file菜单下EXAMPLES--011.Basics--Blink,就可以看到Blink程序已经加载到程序编辑区。因为使用的端口不同,略加修改如下: /*Blink Turns 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 connecte...
This example code is in the public domain. https://www.arduino.cc/en/Tutorial/BuiltInExamples/Blink */ // the setup function runs once when you press reset or power the board void setup() { // initialize digital pin LED_BUILTIN as an output. ...
1、blink代码实验 点击file菜单下EXAMPLES--011.Basics--Blink,就可以看到Blink程序已经加载到程序编辑区。因为使用的端口不同,略加修改如下: /*Blink Turns 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 connecte...
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: ...
我之前发布了一篇关于如果用手机APP控制LED灯的文章,是基于Blink APP和它的服务器实现的,这一讲我们在之前的基础上做一些扩展,通过手机的小爱同学,使用语音控制灯光。没有看过上一篇博客的同学可以先看一下。 Arduino应用开发——手机APP控制LED 1 工作原理 ...
这就是Blink的代码: /*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; ...
This example code is in the public domain. http://www.arduino.cc/en/Tutorial/Blink */ // the setup function runs once when you press reset or power the board void setup() { // initialize digital pin LED_BUILTIN as an output.