available MSP430JTAG debugger, Protel format with the circuit and PCB plans

AT24C512中数据的文件系统化管理的文章-AT24C512 document systematic data management articles

一位大师做的avrusb板，内有uabasp，uabcdc，USB虚拟示波器，USB逻辑分析仪，m8l核心。-A master to do avrusb board, there uabasp, uabcdc, USB Virtual Oscilloscope, USB logic analyzer, m8l core.

学习51单片机必备的一些C语言基础知识，对C语言不熟悉的朋友会有一定的帮助-51 Singlechip necessary to learn some basic knowledge of C language, on the C language are not familiar with our friends will help

本文详细介绍了4×4矩阵式键盘识别技术，内含详细的电路图和C51源代码。-This paper describes a 4 × 4 matrix keyboard recognition technology, and contains detailed schematics and source code C51.

高精度实时时钟-SD2001驱动程序，在要求较高精度的地方可以作为参考资料。-High-precision real-time clock-SD2001 driver in place require a higher accuracy can be used as reference materials.

采用ST的UPSD33XX系列单片机的双串口，实现串口通信的波特率转换，一边为25针串口，一边为9针串口，两天波特率可在程序中修改！文件中包括原理图，PCB和源程序-UPSD33XX using ST"s Microcontroller series dual serial ports, Serial communication baud rate conversion, the side of the 25-pin serial port side of the 9-pin serial ports, two days baud rate can change in the proceedings! Documents including schematics, and source of PCB

根据键盘的控制，移动字符串Hello或者华东师范大学,行列键盘的7用于字符串左移,8用于字符串下移，9用于字符串右移，5用于字符串上移。按键每按一下向各自的方向移动一个点阵的位置。-Under the control of the keyboard, move the string Hello, or East China Normal University, the ranks of the keyboard for the string to the left of 7, 8 for string down, 9 for string shifted to right, 5 for the string to move. Click the button for each move to their respective location of a dot matrix.

用单片机做的数字电子钟，12864＋ds18b20+ds1302,有纪念日提醒功能。-Make use of single-chip digital electronic clock, 12864 ds18b20+ Ds1302, the anniversary has reminded function.

2004计算机专业单片机微型打印机接口-2004 computer professional SCM Micro Printer interface

本设计以P89V51RD2FN单片机为电动小车的控制核心，采用MSA-LD2.0倾角传感器实时测量跷跷板的倾斜角，用ST198光电传感器检测黑色引导线监测小车运动。光电传感器和倾角传感器模块把实时测量信号馈送至单片机，利用专用细分芯片TA8435H驱动步进电机，以脉宽调制式斩波方式对步进电机步进角进行细分，控制和调节小车速度。采用增量式PID控制算法确保小车能够达到平衡；用RT128×64M液晶显示时间、角度等参数。经测试表明：小车各项性能指标达到设计要求，能够实现30秒内小车行驶到规定点，并保持跷跷板平衡；在跷跷板一端配重可调整的情况下，小车也能自动找到平衡点并保持跷跷板平衡。-The single-chip design for the electric car P89V51RD2FN control of the core, the MSA-LD2.0 seesaw angle sensor real-time measurement of the tilt angle, the detection of black ST198 photoelectric sensor to monitor vehicle movement and guide lines.Photoelectric sensors and angle sensors in real-time measurement module to feed the signal to the microcontroller, using a dedicated sub-chip stepper motor driver TA8435H to PWM chopper-type stepper motor on the sub-stepping angle, control and regulation vehicle speed. The use of incremental PID control algorithm to ensure that the car can achieve balance with LCD RT128 × 64M time, angle and other parameters.After the test showed that: the performance car