Reads a digital input on pin 2, prints the result to the serial monitor This example code is in the public domain. */ 2. 变量定义 // digital pin 2 has a pushbutton attached to it. Give it a name: int pushButton = 2; 定义了一个变量pushButton,并将其赋值为2。这表示代码将操作数字...
Next, initialize digital pin 2, the pin that will read the output from your button, as an input: 然后初始化数字针 2,该针会动按钮读取输出,并作为输入: pinMode(2,INPUT); Now that your setup has been completed, move into the main loop of your code. When your button is pressed, 5 volt...
EN37款传感器与执行器的提法,在网络上广泛流传,其实Arduino能够兼容的传感器模块肯定是不止这37种的。...
digital Read(PIN) 参数: pin:你想读取的引脚号(int) 返回 HIGH或LOW 例子: led Pin=13//LED连接到13脚 intinPin=7;//按钮连接到数字引脚7 intval=0;//定义变量存以储读值 voidsetup() { pin Mode(led Pin, OUTPUT) ;//将13脚设置为输出 pin Mode(inPin, INPUT) ;//将7脚设置为输入 voidloop(...
DigitalPins AnalogReadSerial - 读取电位计,并打印它的状态到Arduino串口监视器 BareMinimum - 需要开始一个新的程序的最简框架 Blink - 使LED灯开和关 DigitalReadSerial - 读取一个开关,打印其状态到Arduino串口监视器 Fade - 示范怎么用模拟输出来使LED灯的亮度变淡 ...
Arduino Mega 2560的数字IO引脚编号从0到53,其中0和1通常用于串行通信,而一些引脚还支持PWM输出。基本输入输出操作:输入操作:要将一个引脚设置为输入,可以使用pinMode函数,其中pin是你想要设置为输入的引脚编号。之后,可以使用digitalRead函数读取该引脚的电平状态。输出操作:要将一个引脚设置为输出,...
10.2 INPUT|OUTPUT(数字引脚(Digital pins)定义) 10.3 true | false(逻辑层定义) 10.4 integer constants(整数常量) 10.5 floating point constants(浮点常量) 十一、数据类型 11.1 void 11.2 boolean(布尔) 11.3 char(有号数据类型) 11.4 unsigned char(无符号数据类型) ...
Serial.println(EEPROM.read(addr)); val2 = EEPROM.read(addr); // 读取之前保存的按钮值,从之前离开的位置开始 switch (val2) { 案例1: Serial.println("设置为1/天"); 推1状态= 1; push2state = 0; push3state = 0; pushVal = 1; ...
10.2 INPUT|OUTPUT(数字引脚(Digital pins)定义) 10.3 true|false(逻辑层定义) 10.4 integerconstants(整数常量) 10.5 floating point constants(浮点常量) 十一、数据类型 11.1 void 11.2 boolean(布尔) 11.3 char(有号数据类型) 11.4 unsignedchar(无符号数据类型) ...
Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2. The circuit: - LED attached from pin 13 to ground - pushbutton attached to pin 2 from +5V - 10K resistor attached to pin 2 from ground ...