12864(ST7920)8line

计算血压，根据特定的滤波算法，进行血压计算，得出高压，低压，平均压。(Calculation of blood pressure)

讲解单片机精确延时的思路，采用C51高级语言编写(Explain the the microcontroller precise delay ideas C51 high-level language)

说明：  基于STC15W系列单片机，实现一种常用的MAX7219驱动的8位数码管显示模块的程序。(Based on STC15W series MCU, a program of 8-bit digital tube display module driven by MAX7219 is implemented.)

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.)

说明：  STM32F429示波器源代码，实测可用。(STM32F429 oscilloscope source code, the actual measurement is available.)

C8051Fxx 串口指令单独控制电压表N的状态，电压值串口读取(C8051Fxx serial instruction individually controlled voltage meter N state, the serial port to read voltage value)

stm32 使用硬件SPI读写FLASH AT45DB161D(stm32 FLASH AT45DB161D)

jm20316移动硬盘盒---原理图，PCB板图。非常好用的资料(jm20316 HDD Enclosure--- schematics, PCB board map. Very useful information)

WSN无线传感器网络的经典论著 很有参考价值！！ 包括WSN的结构、协议等 共704页 英文(Wireless Sensor Networks WSN classic works on the value of a good reference! ! Including the structure of WSN, a total of 704 agreements in English)

该程序为C8051F020型单片机用于采集频率信号和模拟量信号以及对采集后的信号进行逻辑判断(This program is for C8051F020 Single Chip and is applied to collect frequency signal and analog signal as well as judge these signals logically. )