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基于51单片机对水温进行PID控制，维持水温，水温可设定。内附Verilog代码PCB和仿真程序。(Based on 51 single-chip computer, the water temperature is controlled by PID to maintain the water temperature, and the water temperature can be set.)

说明：  对一路工频交流电（频率波动范围为50 ±1Hz、有失真的正弦波）的电压有效值、电流有效值、有功功率、无功功率、功率因数进行测量的数字式多用表。通过LCD12864显示(Frequency of the AC all the way (the frequency of fluctuations in the range of 50 ± 1Hz, there is distortion of the sine wave) RMS voltage, RMS current, active power, reactive power, power factor measurement of the digital multimeter. LCD12864 show through)

说明：  KEIL C51，51单片机实现MODBUS从机端(KEIL C51, 51 single-chip client realize MODBUS slave)

74HC595作为列驱动，16*16LED点阵仿真文件，(Lt /RTI & )

一个简单的pid模型。运行后可以获得pid控制曲线。通过修改p/i/d的参数，观看控制曲线的变化。(A simple pid model running under matlab. It could simulate and output the PID curve with manual setting p/i/d values.)

串口通信C8051F120 实现，1起始位，1停止位，无校验(Serial Communication C8051F120 Realization, 1 Start Bit, 1 Stop Bit, No Check)

HT16K23 LCD Driving Demo

说明：  【Realplay】蓝色单片机开发板用+5110液晶屏模块+兼容3310+([Realplay] Blue MCU development board + 5110 LCD module + compatible 3310+)

本程序可自动监测被测主机中的所有文件的操作，通信包截获等(The program can operate automatically monitor files, such as intercepted communications package)

This file will guide to draw schematic orcad 16.2. It help for beginners