bomb185

大多数自行车速度表工作通过使用霍尔效应传感器固定在自行车前叉。磁铁是附加到前轮上的辐条之一,它将与霍尔效应开关一次革命的车轮。速度计监测传感器计数轮革命。如果知道车轮的直径,距离可以很容易地计算如果你知道有多少革命的车轮。此外,如果时间完成革命,平均速度也可以计算出来。 对于这个问题,您将编写一个程序来确定总距离(英里)和平均速度(英里每小时)考虑到车轮直径,革命的数量和总时间的旅行。你可以假定前轮从未离开地面,并没有下滑或打滑。(Most bicycle speedometers work by using a Hall Effect sensor fastened to the front fork of the bicycle. A magnet is attached to one of the spokes on the front wheel so that it will line up with the Hall Effect switch once per revolution of the wheel. The speedometer monitors the sensor to count wheel revolutions. If the diameter of the wheel is known, the distance traveled can be easily be calculated if you know how many revolutions the wheel has made. In addition, if the time it takes to complete the revolutions is known, the average speed can also be calculated. For this problem, you will write a program to determine the total distance traveled (in miles) and the average speed (in Miles Per Hour) given the wheel diameter, the number of revolutions and the total time of the trip. You can assume that the front wheel never leaves the ground, and there is no slipping or skidding.)

说明：  门禁开发流程，通用流程解析，详细分析了小区门禁开发流程和思路等(Access control development process, general process analysis, train of thought analysis, etc.)

说明：  STM32入门很好的学习资料，欢迎下载。(STM32 entry is a good learning material, welcome to download)

说明：  stm32f103单片机开放相关的库函数指导和教程(stm32f103 development tutorial)

十速单片机写的密码锁程序，用汇编语言写的，刚开始学，写的不是很整齐(11-speed microcontroller write lock program written in assembly language, just started to learn to write is not very neat)

基于stm32的飞行器代码，用遥控器可以实现对飞行器控制飞行，可以通过GPS进行定位.(Stm32 code based aircraft, with a remote control can be achieved on aircraft flight control, can be located by GPS.)

说明：  高级例程-基于MINI板的 呼吸灯效果 采用TIM1的PWM实现；基本例程-USART收发；基于STM32的USB程序开发笔记(Advanced routine - the effect of breathing lamp based on mini board is realized by TIM1 PWM)

测试程序ATMEGA8LED的灯亮和灯灭(Test ATMEGA8LED lights turn on and off)

8051驱动ht1622液晶驱动器的程序(8051 driver ht1622 LCD driver program)

说明：  MSP430红外解码驱动，占用了一个定时器资源。(MSP430 IR decoding drive, taking up a timer resources.)