代码如下: /**SendBinary sketch *Send a header followed by two random integer values as binary data.*/intintValue;//an short integer value (16 bits = 2bytes) intvalue must be less than 0xffff(65535 = 255*256+255)voidsetup(){ Serial.begin(9600); }voidloop(){ Serial.print('H');/...
Serial.print(data) 从串行端口输出数据。Serial.print(数据)默认为十进制等于Serial.print(数据,DEC)。 Serial.print(data, encoding) 经序列埠传送资料,提供编码方式的选项。Serial.print(数据,数据的进制)如果没有指定,预设以一般文字传送。 范例: Serial.print(75); // 列印出 "75" Serial.print(75, DEC)...
pinMode(buttonPin, INPUT); } // loop 中每次都检查按钮,如果按钮被按下,就发送信息到串口 void loop() { if (digitalRead(buttonPin) == HIGH)//通过eigitalRead读取到针脚3的电平值是否为高 serialWrite('H');//是高就通过串口写出H else serialWrite('L');//如果不是就通过串口写出L delay(1000)...
void setup() { char str[] = "This is my string"; // create a string char out_str[40]; // output from string functions placed here int num; // general purpose integer Serial.begin(9600); // (1) print the string Serial.println(str); // (2) get the length of the string (exc...
4.2 SimpleIntegerList——简单int类型集合 实例源码: // int为类型的list集合 #include <LinkedList.h> LinkedList<int> myList = LinkedList<int>(); void setup() { Serial.begin(9600); Serial.println("Hello!"); // Add some stuff to the list ...
Serial.print(“ciao”); } switch case if叙述是程序里的分叉路口,switch case 是更多选项的路口。Swith case 根据变量值让程序有更多的选择,比起一串冗长的if叙述,使用swith case可使程序代码看起来比较简洁。 范例: switch (sensorValue) { case 23: ...
// resulting substrings into an integer array: float[] colors = float(split(inString, ",")); // if the array has at least three elements, you know // you got the whole thing. Put the numbers in the // color variables: if (colors.length >=3) { ...
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) 11.5 byte(无符号数) 11.6 int(整型)2 11.7 unsignedint(无符号整型) ...
Len_Integer = Len_mm_X100/100; Len_Fraction = Len_mm_X100%100; Serial.print("Present Length is: "); Serial.print(Len_Integer, DEC); Serial.print("."); if(Len_Fraction < 10) Serial.print("0"); Serial.print(Len_Fraction, DEC); ...
The map() function uses integer math so will not generate fractions, when the math might indicate that it should do so. Fractional remainders are truncated, and are not rounded or averaged. map()函数使用整型,所以不会产生分数,分数将会被截去,并不是全面的或平均值(,) Parameters 参数 value: th...