该文件包含声控开关的详细电路图和PcB布板图，供大家参考。...

ds1302 + nokia5110的显示程序,以及ad 测量电压的程序， 以及定时器 键盘扫描. 以及L9110的 输入输出 关系. 以及eeprom的 读写. -ds1302+ nokia5110 display procedures, and ad measurement of voltage, procedures, and the keyboard scan timer. as well as the L9110 of the input-output relationship. as well as the read and write eeprom.

gsm短消息报警程序，与硬件配合，完成开关量输入，短消息通知主人，用于防盗报警系统。-Short Message gsm alarm procedures, and hardware with complete switch input, short message to inform the owner for the anti-theft alarm system.

蜂鸣器实验beepmusic(arm7平台)-buzzer experimental beepmusic (ARM7 platform 11

51系列单片机读卡程序，本人亲测，适合考勤、门禁。-51 Series single-chip reader program, I pro-test for time and attendance, access control.

单片机的键盘矩阵程序，用c语言编写的。绝对的正确，经过机子调试过的。-SCM procedures keyboard matrix, with c language. Absolutely correct, after testing machine before.

三洋tuner的资料，目前用的比较少，对车台开发有一定的用途-Sanyo tuner information, the less cars on the development of Taiwan must use

便，且能进行大信息量的字符显示,还可以实现图形及曲线的显示,这就使人机接口更友好。当然，不同型号的液晶模块的内置控制器有很多种,各套指令也有一定差异, 但其设计思路和流程基本相同-Will be able to carry out large amount of information displayed characters, but also realize the display of graphics and curves, which is more friendly interface. Of course, different models of LCD module has a variety of built-in controller, the sets of commands have certain differences, but its design is basically the same ideas and flow

SPI使用范例，SPI和AVR单片机的通信和DS1302的通信-SPI usage examples, SPI and AVR microcontroller communication and DS1302 communication

PID是控制智能小车的经典算法在过程控制中，按偏差的比例（P）、积分（I）和微分（D）进行控制的PID控制器（亦称PID调节器）是应用最为广泛的一种自动控制器。它具有原理简单，易于实现，适用面广，控制参数相互独立，参数的选定比较简单等优点；而且在理论上可以证明，对于过程控制的典型对象──“一阶滞后＋纯滞后”与“二阶滞后＋纯滞后”的控制对象，PID控制器是一种最优控制-PID control of the smart car is the classic algorithm in process control, according to the percentage of deviation (P), Integral (I) and differential (D) control of PID controller (also known as PID regulators) is the most widely used as a automatic controller. It has simple, easy to realize, the application of a wide range of control parameters are independent of each other, the selection of relatively simple parameters, etc. and in theory can be proved that for a typical process control objects ─ ─

NEC制红外遥控编码解码+LCM44780 LCM显示驱动-NEC IR DECODE+LCD44780 LCM DISPLAY DRIVER