motor speed by pwm this depon on that the pwm has t on and t off and t ther is a...

应用背景STM32F103ZET6百为开发板的贪吃蛇源代码，主函数基本每一句都有注释，按照自己的思路写的，能够直接在百为STM32F103的板子上运行，代码不长，个人觉得比较清晰。关键技术主要应用了链表数据结构和利用单片机自带的AD采样来产生随机数。贪吃蛇的每一节身体都是链表中的一个元素，而食物出现的位置通过AD采样的末位组合产生的随机数来确定。

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本源码包包含了100例经典的单片机源程序及proteus仿真结果，包括LED模拟交通灯、开关控制报警器、按键发音等，希望对嵌入式或者单片机爱好者提供帮助。

The PCF7991AT is a fully integrated Advanced Basestation IC, ABIC, designed for car immobilizer systems providing read and write access to an identification transponder. The device is intended for use with the NXP transponder family (PCF79xx) as well as other transponder types operating at 125 kHz and employing ASK, Amplitude Shift Keying for write and AM/PM for the read operation. The receiver characteristics (amplifier gain,filter cutoff frequencies) can be optimized to system and transponder requirements. The PCF7991AT IC is designed for easy integration into immobilizer read/write and read-only systems featuring a high degree of integration and very low external component count. The device integrates a powerful antenna driver/modulator, a low-noise adaptive sampling time demodulator, programmable filters/amplifier and digitizer, required to design high-performance basestations. A three wire microcontroller interface is provided for programming the PCF7991AT as well as for th

ad9852原理图 大体是按技术资料来布的图 -AD9852 Schematic generally is based on technical information to cloth map

应用背景自己写的一套单片机模拟操作系统的程序，还不够完善关键技术程序框架以完成，已经实现多任务处理。后期会添加单片机模拟usleep机制

中国钢丝绳标准:几乎国内所有的钢丝绳标准都有。-China wire rope standard: almost all domestic wire rope standards are.

This code is interfacing 4x3 keypad and 16x2 lcd to at89c52 micro controller and can be used in others as well. The design is done using proteus simulator

freescale的关于Imax21的digi程序,好用-Freescale Imax21 the digi on procedures, use