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51单片机模拟PS2键盘，当接收到触发信号时，向PC发送特定键值，从而达到预期的目的，可以用在很多工控场合。本程序已经通过开机自检，可以在设备管理器里面看到。(51 single-chip analog PS2 keyboard, when receiving the trigger signal to the PC to send a specific key, so as to achieve the intended purpose, can be used in many industrial applications. This program has passed POST, you can see inside the device manager.)

pt100高精度测量电路，精度误差小，速度快，arm9 c51均可实现 ，仅供学习 参考(PT100 high precision measurement circuit, precision error is small, fast, C51 ARM9 can be achieved, only for learning reference )

基于维格纳分布的Chirplet变换，可用于信号的处理分析，形成时频图。(Based on Wigner distribution Chirplet conversion, it can be used for analysis of the signal processing, the formation frequency diagram.)

wireless sensor network

ATMEG128单片机开发板上自带的LED点阵源程序，给大家分享一下(ATMEG128 microcontroller development board comes with the LED dot matrix source, to share with you)

For C8051F330 This code example illustrates using the internal analog multiplexer to measure analog voltages on up to 8 different analog inputs. Results are printed to a PC terminal program via the UART.

说明：  AVR单片机学习笔记，适合初学者学习的资料(Learning Notes of AVR Single Chip Microcomputer)

LPC1768_ILI9325 ARM Init Source code

三星94c8芯片写的线控器显示屏，TM1640，模拟串口(Samsung 94 written c8 chip line controller display, TM1640, simulate the serial port)

流水灯程序cc2541蓝牙裸奔,点亮第一个灯(Light water program cc2541 Bluetooth streaking, first lit the lamp)