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PIC18F2580 PWM模块配置的参考代码！(pic18f2580 pwm mode configuration source code reference!)

Program for 5x7 COMMON CATHODE DOT MATRIX DISPLAY

HC-SR501人体红外感应模块软硬件资料，基于ST平台的STM32F10x单片机，包含jpg格式的电路图，常见问题，模块说明，和程序源码(HC-SR501 human infrared sensor module software and hardware information, STM32F10x based on ST platform, including JPG format circuit diagram, common problems, module description, and program source code)

通讯程序，利用的是rs485协议,调试运行可以通过，本人实验过的(This programme is used for the commucation of pc and avr)

STC单片机超声波测距模块c程序（包含测得数据无线上载模块程序）(STC microcontroller ultrasonic ranging module c procedures (including measured data set out on the wireless module program))

器件SN65LBC184手册，便于学习者学习开发！(Device SN65LBC184 manual for ease learners develop!)

51单片机控制16乘以16点阵，可以显示汉字等(51 single chip control 16 times the 16 dot matrix, you can display Chinese characters, etc.)

说明：  根据stm32f103自带DA功能和DMA实现输出正弦波,可根据改变定时器周期改变正弦波频率。(According to the DA function and DMA of stm32f103, the output sinusoidal wave can be realized, and the frequency of sinusoidal wave can be changed according to the period of timer.)

用PWM技术对直流电机进行调速，并用LED进行指示(DC motor speed control using PWM technology, with LED indication)

pc机串口通信，可以实现计算机与单片机，或者是两个单片机之间的通信(the communication through PC serial, between PC and SCM, or two SCM)