AD9954

运动控制卡的详细开发资料，可以用来驱动步进电机(Motion control card developed detailed information can be used to drive stepper motor)

stm8s + sx1276 实现超远距离发送和接收功能(stm8s+sx1276 Send and Receive)

根据STM32硬件开发文档绘制，原理图与PCB齐全，所使用的原理图库和PCB库也已配齐。经本人测试，完全可用，ISP系在和JLINK下载仿真都已实现。(According to the document drawn STM32 hardware development, schematics and PCB complete, the use of schematic library and PCB libraries have also been installed for. I tested, fully available, ISP tied and simulation have been achieved JLINK download.)

说明：  在SMT32F7平台上的基于FreeRtos系统的Lwip1.4的移植(Transplantation of Lwip1.4 Based on FreeRtos System on SMT 32F7 Platform)

VB 开发C51的动态链接库，可以拿来直接用的，(VB-C51 dynamic link library that can be used directly, and)

说明：  硬件资源: 1,DS0(连接在PA8)，DS1(连接在PD2上) 2,串口1(波特率:115200,PA9/PA10连接在板载USB转串口芯片CH340上面) 3,ALIENTEK 2.8/3.5/4.3寸LCD模块(仅支持MCU屏) 4,按键KEY0(PC5)/KEY1(PA15)/KEY_UP(PA0,也称之为WK_UP) 实验现象: 按下KEY_UP键申请内存，内存申请成功以后就可以使用了，按下KEY0键 就是使用申请到的内存。当内存使用完成以后就可以按KEY1键将内存 释放掉。(Hardware resources: 1, DS0 (connected to PA8), DS1 (connected to PD2) 2. Serial port 1 (baud rate: 115200, PA9/PA10 connected on board USB to serial chip CH340) 3, ALIENTEK 2.8/3.5/4.3 inch LCD module (only supporting MCU screen) 4. Keyboard KEY0 (PC5)/KEY1 (PA15)/KEY_UP (PA0, also known as WK_UP) Experimental phenomena: Press KEY_UP key to apply for memory, memory application can be used after success, press KEY0 key That is to use the applied memory. When the use of memory is complete, you can press KEY1 to store the memory. Release.)

说明：  在此基础上，设计一种温度测量系统，能够检测温度，并通过按键调整温度的上下限值，若超过该限值，进行报警提示。该系统的硬件子电路主要用Protues仿真软件实现，具体的子电路包括：恒流源电路（TLC2543芯片）、信号放大调理电路（两线制铂电阻PT100）、单片机最小系统（AT89C51）、A/D转换电路、按键电路、显示电路、声光报警器等。该系统的软件电路以C语言为基础，在Keil中实现。最后通过软硬结合，实现电路的各种情况仿真，以此验证电路设计的正确性和合理性。(On this basis, a temperature measurement system is designed, which can detect the temperature and adjust the upper and lower limits of the temperature by pressing the key. If it exceeds the limit, an alarm will be given. The hardware sub circuit of the system is mainly realized by Proteus simulation software. The specific sub circuits include: constant current source circuit (TLC2543 chip), signal amplification and conditioning circuit (two-wire platinum resistance PT100), minimum system of single chip microcomputer (AT89C51), a / D conversion circuit, key circuit, display circuit, sound and light alarm, etc. The software circuit of the system is based on C language and implemented in keil. Finally, through the combination of hardware and software, the circuit simulation is realized to verify the correctness and rationality of the circuit design.)

根据太阳电池量子效率曲线计算光短路电流密度(calculate the short current density according to the quantum efficiency curve of solar cell)

STM32单片机的PID算法实例，通过PID算法控制STM32的PWM输出，反馈量是PWM低通滤波后得到的AD(STM32 microcontroller PID algorithm instance, through the STM32 PID algorithm to control the PWM output, PWM amount of feedback is obtained after low-pass filter AD)

流水灯：LED小灯依次亮起再依次熄灭亮亮亮亮亮亮亮亮亮亮亮亮亮亮亮亮了(Running light: the LED light turns on in turn and then goes out in turn, bright, bright, bright, bright, bright and bright)