Documentation

本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。(the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the )

wifi直连模块RS-WC-201的开发固件以及wifi-AP的测试代码。(wifi direct module RS-WC-201' s firmware, and wifi-AP developed the test code.)

哈尔滨芯明天科技XE517系列压电陶瓷控制器配套上位机软件的开发例程，这个版本是VC6开发。发布时需要拷贝debug目录中的头文件和动态库文件到*.exe文件目录中。(Harbin XMT XE517 series of piezoelectric ceramic controller supporting PC software development routines, this version is VC6 development. When you need to copy the directory publishing debug header files and dynamic library files to*. Exe file directory.)

0~999数码管和164串入并出显示的汇编编程()

使用C51单片机进行二进制转换源码的算法介绍(The use of C51 single-chip source binary conversion algorithm introduced)

说明：  利用带有蓝牙功能的安卓手机与HC-05蓝牙模块通信。用stm32f103c8t6单片机来控制开关量(Use your cell phone to communicate with bluetooth. Switch quantity is controlled by single chip microcomputer)

讲解 角度传感器的原理，内部结构，引脚功能，以及相关运用(Angle sensor to explain the principles of the internal structure of pin functions, and related use)

说明：  基于89C52单片机的超声波探测跟踪小车的设计程序，注释说明完整详尽(Based on 89C52 single-chip computer, the design procedure of the ultrasonic detection and tracking car is described in detail.)

基于单片机，运用点阵做的打砖块的小游戏的代码，开发奇思妙想让学习更快乐。(Based on SCM, the use of lattice do Arkanoid game code development whimsy to make learning more fun.)

cpu卡 读卡示例程序 单片机stm32 编译环境keil(CPU card reading sample program STM32 compiler environment KEIL)