distance-measure

c51单片机制作交通灯，源码+文档，基础入门(c51 microcontroller making traffic lights, the source code+ documentation)

The SC-2075 is a desktop signal conditioner that you can connect directly to National Instruments E Series or 1200 Series devices. The SC-2075 has the following features: • Binding posts – Three for ±15 V outputs – Two for 0 to 5 V outputs – Two for measuring analog signals or DC voltages • BNC connectors – Two for analog inputs – Two for analog outputs – One for triggering • Spring terminals – Eleven for analog inputs – Seven for analog controls – Seven for counter controls – Two for TTL-level power and ground signals – Eight for digital input/output (DIO) signals

18B20温度传感器 LCD1602液晶屏显示,可以显示负温度(18B20 temperature sensor LCD1602 LCD display, you can display negative temperature.)

PIC12f54单片机控制的专用的回音消除程序。如果需要模块的PCB和原理图请和我联系。(PIC12f54 dedicated MCU control echo cancellation procedures. If the module PCB and schematic please contact me.)

西门子S7-200 Modbus通信（主站）(S7-200 Modbus master)

说明：  STM32F407定时器实验，使用定时器控制LED闪烁，并且与while循环的闪烁灯进行时间的对比。(STM32F407 timer experiment uses timer to control LED flicker, and compares the time with that of the while cycle flicker lamp.)

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)

基于单片机的DDS信号发生器，可产生正弦曲线和三角波形(DDS signal generator based on MCU, can generate sinusoidal and triangular waveform)

C++例子，比较适合初学者了解C++程序的流程，以及基本结构(C++ example, more suitable for beginners to understand C++ program flow, as well as the basic structure)

根据器件扫频测试结果，处理数据得到器件的幅频和相频特性(According to the device sweep test results, process the data obtained amplitude-frequency and phase-frequency characteristics of the device)