8. parseFloat()函数：将String对象转换为浮点数类型。使用这些函数，可以进行各种文本操作和处理，例如：String myString = "Hello, World!";int length = myString.length(); //返回13，即字符串的长度 bool isSame = myString.equals("Hello, Arduino!"); //返回false，因为两个字符串不相等 myString = ...
String recordTemp="[Begin]";//监听的临时参数,每监听到一个键就加在此字符的后面,并设定每次监听的开头为[Begin]PS2Keyboard kbd; //PS2Keyboard 类实例化void setup() {Keyboard.begin(); //向计算机发送按键信号准备开始kbd.begin(DataPin, IRQpin, PS2Keymap_US); //设置键盘为标准的美国101Serial....
toLowerCase() toUpperCase() trim() 操作符 [](元素访问) +(串连) ==(比较) 举例 StringConstructors StringAdditionOperator StringIndexOf StringAppendOperator StringLengthTrim StringCaseChanges StringReplace StringCharacters StringStartsWithEndsWith StringComparisonOperators StringSubstring array -(数组) Arrays...
// 灯光亮度控制回调函数voidmiotBright(constString&bright){BLINKER_LOG("need set brightness: ",bright);// 打印需要设置的亮度uint8_tcolorW=bright.toInt();BLINKER_LOG("now set brightness: ",colorW);// 在此处我们可以根据实际情况添加一些控制的代码,比如:通过修改PWM占空比的值,从而达到调节灯亮度的...
BricktronicsMotor BM[4] = {BricktronicsMotor(32, 38, 44, 2, 3), BricktronicsMotor(33, 35, 45, 20, 21), BricktronicsMotor(32, 38, 44, 2, 3), BricktronicsMotor(32, 38, 44, 2, 3)}; // Init Motor void MOTOR::Init(int intMotorNo, String strMotorType, bool bolVSpeed, int ...
方法/步骤 1 第一步，烧录arduino程序。源程序如下：#include <Servo.h> //引入libServo myservo; // 创建一个伺服电机对象char inByte = 0; //串口接收的数据int angle = 0; //角度值String temp = "";//临时字符变量，又或者说是缓存用的吧void setup(){ myservo.attach(9); //定义舵机的引脚...
voidsetup(){// 改成自己云端的参数Serial.println("*产品ID#ILoveHelloGitHub#HG*");}// 根据从串口收到的 字符串 执行相应的指令boolcommand_parse(String command){...if(command=="open"){digitalWrite(LED_BUILTIN,HIGH);}elseif(command=="close"){digitalWrite(LED_BUILTIN,LOW);}} ...
bool io_zhixing[20]={ 1,1,1,1,1, 1,1,1,1,1, 1,1,1,1,1, 1,1,1,1,1 }; unsigned long currentMillis; char cmd_s='B'; void setup() { // put your setup code here, to run once: Serial.begin(9600); for(int i=2;i<=19;i++) ...
typedef unsigned int word;#definebit(b)(1UL<<(b))typedef bool boolean;typedef uint8_t byte;voidinit(void);voidinitVariant(void);intatexit(void(*func)())__attribute__((weak));voidpinMode(uint8_t pin,uint8_t mode);voiddigitalWrite(uint8_t pin,uint8_t val);intdigitalRead(uint8_t ...
bool b1=0;//布尔值,只有0和1,使用“!” 取反操作 byte be;//一个字节存储8位无符号数,范围0-255 int i; //整数,占用两个字节,整数范围-32767~+32767 long a;//长整型,占四个字节,范围-2147483647~2147483647 float b;//浮点类型, char c='A'; ...