俄罗斯方块

大棚温湿度检测的源程序，淘宝上买的，用完好使(Greenhouse temperature and humidity detection of the source, Taobao buy, run out so that)

基于stm32f103r8t6的串口例程，实现数据的收发方式(Based on stm32f103r8t6 serial port routine to achieve the data transmission mode)

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：  有温湿度，有害气体，光照检测，通过触摸屏显示出来，并且可以切换界面，播放图片(Detection of temperature, humidity, photosensitivity and harmful gases)

基于电话网的远程控制系统，带语音，原创优秀毕业设计，带全部文档，程序，实物图片。(telephone network based on the remote control system with voice, originality outstanding graduate design, with all the files, programs, in-kind photographs.)

AD5933评估板下位机程序（keil C）和上位机程序（VB）(AD5933 Evaluation procedures under the plan (keil C) and PC (VB))

利用stm32输出pwm波，希望能给大家带来一些帮助(Output PWM wave by stm32)

PIC单片机通过串口方式，把ADC采集的数据发送到PC(PIC microcontroller through the serial port mode, the ADC data collected is sent to the PC)

pcf8591AD转换芯片，51单片机控制28BYJ48步进电机(Pcf8591AD conversion chip, 51 single chip computer control 28BYJ48 stepper motor)

TM1652 是一款LED（发光二极管、数码管、点阵屏）驱动控制专用芯片，内部集成了数字通讯电路、 解码电路、数据锁存器、震荡器、LED驱动电路。通讯方式采用异步串口通信（UART）协议，因芯片只 接收单片机发来的数据，仅需要单片机的一个TX端口发送数据给芯片即可，实现单线通讯；在显示驱动 方面，芯片采用动态扫描方式，两种显示模式可选，8级段驱动电流可调，16级位占空比可调；TM1652 内置消隐处理优化电路。(TM1652 is an LED (light-emitting diode, LED, dot-matrix screen) driver control ASIC, integrated digital communications circuits, Decoding circuit, data latch, oscillator, LED driver circuit. Communication using asynchronous serial communication (UART) protocol, because the chip only MCU receives data sent only need a microcontroller TX port to send data to the chip can achieve single-wire communication the display driver Aspects, chip dynamic scan mode, two display modes, 8 segment drive current is adjustable, 16-bit adjustable duty cycle TM1652 Built-in blanking processing optimization circuit.)