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说明：  用mcs-52系列单片机实现等精度频率测量，T1引脚接被测TTL信号，晶振22.1184MHz，对任何频率都可以实现很高精度的测量（精度<1 )，结果从串口字符串输出，波特率115200，可以用串口调试器观察结果.(With mcs-52 family of single chip and other precision frequency measurement, T1 pin then measured TTL signal, Crystal 22.1184MHz, any frequency can be achieved very high accuracy of measurement (precision<1 ), the result string from the serial output , baud rate 115200, serial debugger can observe the results.)

说明：  电动车控制器 DC负安培高刹车防盗三速提速20带霍尔显示(Electric Vehicle Controllers )

c8051f060例程包 方便学习变成使用 很不错的东西(c8051f060 facilitate learning routine package things into good use)

Code written in MPLAB for I2C with PIC18f45k80

PIC Microcontroller project Door lock with PIC16f84a

利用PID算法控制PWM输出电压，实现串联型数控电源，通过键盘输入控制期望电压(PID algorithm to control the use of PWM output voltage to achieve tandem CNC power, through the keyboard input control voltage expectations)

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MSP430FR57x Demo - Toggle P1.0 using software Description: Toggle P1.0 using software. ACLK = n/a, MCLK = SMCLK = TACLK = default DCO = ~625 KHz(MSP430FR57x Demo- Toggle P1.0 using software Description: Toggle P1.0 using software. ACLK = n/a, MCLK = SMCLK = TACLK = default DCO = ~625 KHz)

AT89C51SND1C方案mp3资料包括源程序与原理图(AT89C51SND1C program information, including source code and mp3 schematic)

基于51单片机的信号发生器 四种波形显示 有级调频(Based on 51 single-chip signal generator)