Arduino UNO是2001年9月25日在纽约创客大会上发布的,历经多年的发展,越来越受中小学生的喜爱。 标准的Arduino UNO板子上的13引脚接有一个LED,IDE中的Blink例程就是控制这个LED以一秒的间隔闪烁,下面给出的就是Blink程序代码。 /* Blink Turns on an LED on for one second, then off for one second, repeated...
In this Arduino tutorial I will show you how to turn an LED on and off with a push button. In fact, we’ll do 2 slightly different applications.First, we will power on the LED when the button is pressed, and power off the LED when the button is not pressed....
uint16_t clear, red, green, blue; tcs.setInterrupt(false);// turn on LED delay(60); tcs.getRawData(&red, &green, &blue, &clear); tcs.setInterrupt(true); Serial.print("C:\t"); Serial.print(clear); Serial.print("\tR:\t"); Serial.print(red); Serial.print("\tG:\t"); Ser...
uint16_t clear, red, green, blue; tcs.setInterrupt(false); // turn on LED delay(60); tcs.getRawData(&red, &green, &blue, &clear); tcs.setInterrupt(true); Serial.print("C:\t"); Serial.print(clear); Serial.print("\tR:\t"); Serial.print(red); Serial.print("\tG:\t"); S...
如果值为“所有 LED 打开”,则两个 LED 都打开,像这样,我们已经编码了其他语音命令来打开或关闭单个 LED。查看本文后面的完整工作和演示视频。 if (bluetooth.available()) { value = bluetooth.readString(); if (value == "all LED turn on"){ ...
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second } 1. 2. ...
3、原理图找到LED引脚 查看板载LED序号为13 附Arduino Nano 原理图下载地址http://download.csdn.net/download/leytton/9874360 4、打开闪灯案例Blink 修改GPIO序号为13 // the setup function runs once when you press reset or power the board void setup() { ...
void loop(){Serial.println("a");Serial.flush();digitalWrite(LED_BUILTIN,HIGH);//turn the LED on(HIGHisthe voltage level)delay(300);//waitfora second digitalWrite(LED_BUILTIN,LOW);//turn the LED off by making the voltage LOW delay(300);//waitfora second} ...
(13, OUTPUT);// Initialize digital pin 13 as an output.}// The main loop that continues forevervoidloop() {digitalWrite(13, HIGH);// turn the LED on (HIGH is the voltage level)delay(1000);// wait for a seconddigitalWrite(13, LOW);// turn the LED off by making the voltage LOW...
在本例中,只有一个命令,正如注释所述,它告诉Arduino板我们将使用LED pin作为输出。 程序必须有一个“循环”函数。与只运行一次的“setup”函数不同,在复位之后,“loop”函数将在运行完命令后立即重新启动。 void loop() { digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) ...