if 语句的语法是: if(someVariable>50) { // 执行某些语句 } 本程序测试 someVariable 变量的值是否大于 50。当大于 50 时,执行一些语句。换句 话说,只要 if 后面括号里的结果(称之为测试表达式)为真,则执行大括号中的语句(称 之为执行语句块);若为假,则跳过大括号中的语句。 if 语句后的大括号可以省...
一、概述 艾尔赛Arduino FOC无刷电机驱动板采用3个分立的高低边栅极驱动器和6个NMOS管组成1路BLDC驱动电路,兼容国外开源项目Simple FOC Shield V2.0.4,可直接插入到Arduino NNO开发板作为一个Shiled来使用,并支持多种传感器接口,用户可以使用Arduino环境下的Simple FOC库来控制BLDC无刷电机平稳高精度运行。 二、功能特...
10.1 HIGH|LOW(引脚电压定义) 10.2 INPUT|OUTPUT(数字引脚(Digital pins)定义) 10.3 true | false(逻辑层定义) 10.4 integer constants(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 unsigned char(无符号数据类型) 11.5 byte(...
var = 1; //variable with value binary 00000001 TCCR2B |= var; //set TCCR2B to binary 00000001 // *** And the Pin 3 PWM frequency is now 32 kHz./* LMD18200 DC Motor Control Test v1.1 - TL Fong 2009apr14 */ // Changing Pin 3 PWM frequency int pwm Pin = 3;int direct...
本程序测试 someVariable 变量的值是否大于 50。当大于 50 时,执行一些语句。换句话说,只要 if 后面括号里的结果(称之为测试表达式)为真,则执行大括号中的语句(称之为执行语句块);若为假,则跳过大括号中的语句。if 语句后的大括号可以省略。若省略大括号,则只有一条语句(以分号结尾)成为执行语句。
pinMode(ledPin, OUTPUT); pinMode(dotButton, INPUT); pinMode(dashButton, INPUT); Serial.begin(9600); Serial.println("***"); Serial.println(" Demonstration of Morse Code "); Serial.println("*** "); Serial.println("\nInstructions"); Serial.println("1. First...
for the high period, and 10 readings for the low period, and averages each set of results. It then adds them and uses floating point to calculate the frequency of the input signal. Note the signal source is not a very stable one - just an RC oscillator at 1kHz output frequency. ...
This document is aimed at the Arduino developers, radio experimenters, hobbyists and anyone interested in building a receiver based on the Si473X IC family from Silicon Labs. This project is about an Arduino library for the SI473X BROADCAST AM, SSB and FM/RDS RADIO RECEIVERS. Frequency ranges...
The inverter as the main part of the variable frequency driver (VSD) uses the IRFZ44n Mosfet as a power switch with a full bridge topology to convert the DC source to AC power. Fundamental frequency manipulation takes place during the conversion process. The method used is to change the ...
uuuu%X%X %x*%x* / / / #T*#T* #T*#T* iT*iT* iTiT iT*iT* iTiT #T#T iTiT *T*T*T*T* TT*T*T* *T*T* ff*T*T* *T*T*T*T* fwfwf farduinoarduino学习笔记5 5 ArduuinoArduuino复合运算符+=,-=,*=, /=Description 描述Perform a mathematical operation on a variable with ...