// read the input on analog pin 0: int sensorValue = analogRead(A0); // print out the value you read: Serial.println(sensorValue); delay(1); // delay in between reads for stability } 这段代码是Arduino编程语言编写的,用于读取模拟输入引脚A0上的值,并通过串行监视器(Serial Monitor)打印出来。
read(): 描述:读取传入的串行数据。 函数原型:Serial.read() 参数:无 返回值:可用的传入串行数据的第一个字节(如果没有可用的数据,则为-1) - int print(): 描述:在串行口以人们可以看懂的 ASSCII 码的形式打印数据。 函数原型:Serial.print(val) / Serial.print(val, format) 参数: val:要打印的值...
void loop() { // read the input on analog pin 0: int sensorValue =analogRead(A0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V): float voltage = sensorValue * (5.0 / 1023.0); // print out the value you read: Serial.println(voltage); } 火...
(2)打开Arduino,选择 Tools->Serial Port->COM4 条件二 选择开发板 Tools->Board->Arduino Uno (我的开发版为Arduino Uno) 通过上面的设置,就可以正确连接Arduino开发板 先看一段代码 1 void setup()//系统初始化 2 { 3 Serial.begin(9600); //设置串口波特率 ...
Serial.println(voltage) 现在,当你打开你在Arduino IDE软件上的串口监视器(可以通过键盘快捷键Ctrl+Shift+M打开),你应该看到一个范围从0.0-5.0的稳定的数据流。随着你转动那个旋钮,这个输入到A0引脚的电压值会随之变化。 /* ReadAnalogVoltage Reads an analog input on pin 0, converts it to voltage, and pr...
voidloop(){if(Serial.available()>0){intdata=Serial.read();// 读取接收到的参数// 在这里对参数进行处理}} 1. 2. 3. 4. 5. 6. 2.2 通过模拟输入接收参数 除了通过串行通信,Arduino还可以通过模拟输入接收参数。Arduino的模拟输入引脚(Analog Input Pins)可以接收0-1023之间的模拟值。我们可以使用analog...
Serial.begin(9600); } // the loop routine runs over and over again forever: void loop() { // read the input on analog pin 0: int sensorValue = analogRead(A0); // print out the value you read: Serial.println(sensorValue);
pinMode(A0, INPUT); Serial.begin(9600); }voidloop() {//read the input on analog pin 0:sensorValue =analogRead(A0);//print out the value you read:Serial.println(sensorValue); delay(10);//Delay a little bit to improve simulation performance}...
格瑞图:Arduino-0002-内置示例-模拟读 Analog Read Serial 格瑞图:Arduino-0003-内置示例-最简化代码 Bare Minimum 格瑞图:Arduino-0004-内置示例-闪烁 Blink 1、示例代码及解析 (1)代码 /* DigitalReadSerial Reads a digital input on pin 2, prints the result to the Serial Monitor ...
(2)模拟串口读 - Analog Read Serial This example shows you how to read analog input from the physical world using a potentiometer. Apotentiometeris a simple mechanical device that provides a varying amount of resistance when its shaft is turned. By passing voltage through a potentiometer and into...