void loop() { // gets the current runtime in milliseconds unsigned long currentMillis = millis(); // reads the start button switch state int switchState = digitalRead(startButtonPin); } 要通过循环开始每次运行,我们需要根据 arduino 的内部时钟以及开关是否被按下来跟踪当前时间。 接下来让我们编写...
void dhtRead() { // Reading temperature or humidity takes about 250 milliseconds! // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor) h = dht.readHumidity(); // Read temperature as Celsius (the default) t = dht.readTemperature();...
36 unsigned long previousMillis = 0; // will store last time LED was updated 37 const long interval = 500; // interval at which to blink (milliseconds) 38 39 // 与控制按钮相关的变量 40 const int MODE_BUTTON = 6; 41 int mode = 0; // 0: 关机; 1: 长亮; 2: blink 42 boolean ...
1. 概述 相信很多朋友已经在玩 Arduino了，而且一般都是使用官方的Arduino IDE来写程序控制Arduino硬...
print("Robu "); delay(2000); Serial.begin(9600); dht.begin(); } void loop() { // Wait a few seconds between measurements. delay(2000); // Reading temperature or humidity takes about 250 milliseconds! // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)...
三个参数:uint_32_t milliseconds毫秒数,callback回调函数,arg 回调函数的参数 4.attach方法 ①void attach(float seconds, callback_function_t callback); 功能:每隔多少秒周期性执行 两个参数:seconds 秒数, 、param callback 回调函数 ②void attach(float seconds, void(*callback)(TArg),TArg arg) ...
(0,255);//default output limit corresponds to//the arduino pwm limits// 默认采样周期为100ms,同样可以根据需求修改SampleTime =100;//default Controller Sample Time is 0.1 seconds// 设置输出的方向PID::SetControllerDirection(ControllerDirection);// 设置PID 控制参数PID::SetTunings(Kp, Ki, Kd);//...
You want your sketch to pause for some period of time. This may be some number of milliseconds, or a time given in seconds, minutes, hours, or days. Solution The Arduino delay function is used in many sketches throughout this book. delay pauses a sketch for the number of milliseconds sp...
* @param seconds 秒数 * @param callback 回调函数 * @param arg 回调函数的参数 */voidattach_ms(uint32_t milliseconds,void(*callback)(TArg),TArg arg) 二. 转换为base64 1. 什么是base64 Base64是网络上最常见的用于传输8Bit字节码的编码方式之一,Base64就是一种基于64个可打印字符来表示二进制数...
br3ttb/Arduino-PID-LibraryPublic NotificationsYou must be signed in to change notification settings Fork1.1k Star2k Files master examples PID_v1.cpp PID_v1.h README.txt keywords.txt library.json library.properties