dac

时钟的应用源代码，可以让初次设计有关定时操作的人员借鉴。 (Clock application source code, allowing designers about the timing of the initial operation of reference.)

说明：  stc系列单片机的开发例程 各个模块都跳通过了 开发环境是 keil3(STC series MCU development routines in all modules jump through the development environment is keil3)

MSP430实现的多级菜单功能，采用OLED实现，占用Ram量较少(MSP430 realize multi-level menu functions, the use of OLED achieved occupancy of less Ram)

这是基于STM32的USART转232的应用程序(This is based on the STM32 USART 232 applications)

SD Specifications_Ver3.01

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

根据对应的按键值，对应输出相应的电容值，并做掉电检测(According to the corresponding key value, corresponding to the output of the corresponding capacitance values ​ ​ and do brownout detection)

编写程序，通过8255 单元控制点阵的扫描显示，使8×8LED 点阵到小循环显示号 “□”(Programming, through the 8255 unit control the scanning dot matrix display, the 8 × 8LED dot matrix display number to small cycles " □" )

STM32 外部中断程序，用于学习用中断来控制按键(STM32 External Interrupt program)

NRF无线模块程序，用于飞思卡尔智能车无线数据传输(NRF wireless module program for Freescale smart car wireless data transmission)