51read_red_sign

direct sparse solver for linear equations

本作品是基于stm32检测温湿度，可以通过串口观察实时状态。(This work is based on stm32 detection temperature and humidity, you can observe the real-time status through the serial port.)

MSP-FET430P120 C语言例子程序(MSP-FET430P120 C language examples procedures)

一些关于微生物燃料电池的英文文献，在网上不能免费下载。(Some of the English literature on microbial fuel cells can not be downloaded free of charge online.)

说明：  串口测试 测试接收和发送，.........(Serial port test test receive and send)

说明：  液晶显示屏多功能显示及可修改代码，可参考学习如何进行翻页设置(Multi function display and modifiable code of LCD)

Stm8 I2C总线硬件I2C设备,总线挂载4片单片机，均为Stm8单片机,每一片单片机都可以做主从切换,测试可以正常通信。(Stm8 hardware I2C bus mount four I2C devices, are stm8 microcontroller, every piece of single-chip computer can make decision the switch, the test can normal communication.)

使用MDK5编写的程序，利用STM32F103驱动CH395模块利用网口和电脑之间通信，还包含了相关的资料(Using the program written in MDK5, using the STM32F103 to drive the CH395 module to communicate between the network and the computer, the related information is also included.)

7128芯片设计原理图，适合3A一下电流的步进电机驱动器设计，非常实用(7128 chip design schematics for what current 3A stepper motor driver design, very practical)

数字电子时钟是一种使用数字电路技术实现时钟、分钟和秒钟定时的设备。 它在其他电子时钟中具有更高的准确性和主观性。数字钟包含扩展功能和基本功能。其中，基本功能部分：以数字形式准确定时，显示时、分、秒的功能; 扩展功能部分： 日期显示、闹钟、温度显示。(A digital electronic clock is a device that uses digital circuit technology to achieve clock, minute, and second timing. It has higher accuracy and subjectivity in other electronic clocks. The digital clock has two parts, basic functions and extended functions. Among them, the basic function part: accurate timing in digital form, display hours, minutes, seconds function; extended function part: date display, alarm clock, temperature display.)