这段代码用于读取连接在数字引脚2上的按钮(pushbutton)的状态,并将结果通过串行监视器(Serial Monitor)打印出来。 /* DigitalReadSerial Reads a digital input on pin 2, prints the result to the serial monitor This example code is in the public domain. */ // digital pin 2 has a pushbutton attached...
2、数字串口读取 - Digital Read Serial Read a switch, print the state out to the Arduino Serial Monitor. 读取开关状态,并打印状态到 Arduino 串口监视器。 This example shows you how to monitor the state of a switch by establishingserial communicationbetween your Arduino and your computer over USB....
Serial.println(sensorValue); delay(1); // delay in between reads for stability 在两次读取间延迟,以保持稳定性 } 2、模拟串口读取 - Analog Read Serial (1)原文地址 https://www.arduino.cc/en/Tutorial/BuiltInExamples/AnalogReadSerial (2)模拟串口读 - Analog Read Serial This example shows you ho...
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。 代码功能 读取模拟输入:代码通过连接到...
if (Serial.available()) { mySerial.write(Serial.read()); } } [Get Code] 更多 The Software Serial Library TwoPortReceive – 当接收到一个特殊字符时,两个串口端口由一个切换到另一个的数据来接受数据。. MultiSerialMega - 使用在Arduino和Genuino Mega上的两个有效串行端口。
Serial.read( )// 读取串口缓冲区 1 个 Byte 的数据，不带参数，返回 int 型。// 反复读取串口数据直到读完（Serial.available()=0）时止 5.实验 任务：用 LCD 实现自动滚屏显示、从左向右或从右向左显示、光标任意定位与闪烁等显示功能 电路图：原理图：#include <LiquidCrystal.h> // 包括库函数的头...
int blue = Serial.parseInt(); 一旦你把数据读到你的变量,检查是否有新的字符需要继续读取: if (Serial.read() == '\n') { 用constrain(),你可以使这些值保持在PWM控制的范围内。用这种方式,如果这些值超过PWM的范围,它将会限制在一个可行的数值。从255里减去这个数值,你就可以得出用来控制LED灯的值。
This example code is in the public domain. */ void setup() { // initialize both serial ports: Serial.begin(9600); Serial1.begin(9600); } void loop() { // read from port 1, send to port 0: if (Serial1.available()) {
Serial Event example When new serial data arrives, this sketch adds it to a String. When a newline is received, the loop prints the string and clears it. A good test for this is to try it with a GPS receiver that sends out NMEA 0183 sentences. ...
Serial.println("example.txt 不存在"); } // 打开一个新文件,然后立即将其关闭(创建文件) Serial.println("创建 example.txt..."); myFile = SD.open("example.txt", FILE_WRITE); myFile.close(); // 检查该文件是否新建成功 if(SD.exists("example.txt")) ...