char hello[ARRAY_SIZE] = {'h','e','l','l','o',' ','w','o','r','l','d','!'}; void setup() { //set baud rate for serial communication Serial.begin(115200); } void loop() { //print characters from array to serial monitor for(int x = 0; x < ARRAY_SIZE; x++) ...
result = value1 + value2; result = value1 - value2; result = value1 * value2; result = value1 / value2; Parameters: value1: 任何常量或者变量,value2: 任何常量或者变量 编程小提示 整型常量的默认值是 int 类型,所以一些整型常量(定义中)的计算会导致溢出.(比如: 60 * 1000 会得 到一个负...
azimuth = compass.getAzimuth(); charmyArray[3]; getDirection(myArray, azimuth); Serial.print(myArray[0]); Serial.print(myArray[1]); Serial.print(myArray[2]); Serial.println(); } 6、更改I2C地址 要在调用compass.setADDR(BYTE_VALUE);之前更改I2C地址呼叫,compass.init();如下所示: 1 2 3...
Arduino supports many different build events. Visual Micro supports the same events and more. If you can't find an event that meets your needs then please make a request to our forum. Build events are normally placed in the arduino platform.txt system which can be quite convoluted and diffic...
Arduino Map: How to map a value from one range to another. It is a useful function but it may not do what you expect! Find out here why it may go wrong and how to use it correctly.Arduino map Maps one range of values to another. It should work the way you think...but it does...
Arduino-语法手册 Arduino语法手册 Arduino的程序可以划分为三个主要部分：结构、变量（变量与常量）、函数。结构部分 一、结构 1.1setup()1.2loop()二、结构控制 2.1 if 2.2 if...else 2.3 for 2.4 switch case 2.5 while 2.6 do... while 2.7 break 2.8 continue 2.9 return 2.10 goto 三...
Joystick.setHatSwitch(byte hatSwitch, int value) Sets the value of the specified hat switch. The hatSwitch is 0-based (i.e. hat switch #1 is 0 and hat switch #2 is 1). The value is from 0° to 360°, but in 45° increments. Any value less than 45° will be rounded down (...
(浮点型数) 19.2 max() 11.12 double (双精度浮点数) 19.3 abs() 11.13 string (char array/字符串) 19.4 constrain() 11.14 String object (String 类) 19.5 map() 11.15 array (数组) 19.6 pow() 十二、数据类型转换 19.7 sqrt() 12.1 char() 19.8 ceil() 12.2 byte() 19.9 exp() 12.3 int() ...
uint16_t availableFileNumber(uint16_t startNumber, String formatBase) { // Find unclaimed serial number for file series uint16_t counter1; char nameArray[80]; for(counter1 = startNumber; counter1 % MAX_SERIAL != 0; ++counter1) { // Start counting ...
(fontSize *2); int rectWidth = windowWidth - rectMargin*2; int rectHeight = windowHeight - rectMargin; int rectCenter = rectMargin + rectWidth / 2; int origin = rectCenter; int minValue = -127; int maxValue = 127; float scale = float(rectWidth) / (maxValue - minValue); String...