本文件是用51单片机设计电子琴的资料文件，且带有原理图

51+PDIUSBD12源代码-51 PDIUSBD12 source code

用可调电阻调节电压值作为模拟温度的输入量，当温度低于30℃时，发出长嘀报警声和光报警，当温度高于60℃时，发出短嘀报警声和光报警。测量的温度范围在0－99℃。-Adjustable voltage regulator with resistance values of the input analog temperature, when the temperature is below 30 ℃, the issue of longalarm sound and light alarm, when the temperature is higher than 60 ℃, short issuedalarm sound and light alarm. Measurement of the temperature range of 0-99 ℃.

完整的c程序，包括模拟量输入输出，pid算法，触摸屏通讯等。-Complete c procedures, including analog input and output, pid algorithm, touch-screen communications.

在C51上显示四个数码管程序，简单易懂，试用过-In the C51 display four digital control program

用汇编语言编写的6位8段数码管显示程序与MS-51单片机实验系统配合使用-assembly language prepared by six of eight digital control display program with the MS-51 used in conjunction with experimental system

SD卡详细资料,包括SD卡介绍以及接口规范及部分电路连接图-SD card details, including the SD card interface specification and some of the presentations and the circuit connection diagram

51单片机实现的温度测量、AD转换，温度传感器采用DS18B20，显示采用1602LCD屏，报警采用蜂鸣器。-。-51 MCU temperature measurement, police procedures, the use of temperature sensor DS18B20, showed that the use of 1602LCD screen, using buzzer alarm.

c8051f020的128×64图形液晶显示图形的程序，图形液晶的型号为lm3033a-C8051f020 128 64 graphics LCD graphical procedures, graphic LCD models for lm3033a

洗衣机程序 普通的家用洗衣机的大部分功能都可以实现 但其中有更好的设计 望指教-not very important

以比较匹配A达到时交替输出高低电平及写入其维持 时间常数之方法实现脉宽调制输出-to compare A match reached the turn at the high output and low-level maintenance time into their methods to achieve constant PWM Output