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51单片机dac0809驱动程序，包含整个单片机开发。(51 single dac0809 drivers)

说明：  PIC16F87X单片机C语言及应用，基本包括16F87X的所以功能，用word编写，可以当一本电子书籍(PIC16F87X SCM C language and applications, including basic functions so the 16F87X with word preparation, when an e-books)

VB 开发C51的动态链接库，可以拿来直接用的，(VB-C51 dynamic link library that can be used directly, and)

stm32f103zet6 关于nrf24l01的发送程序(Stm32f103zet6 on nRF24L01 sending program)

说明：  实现了tm4c1294的硬件i2c通信，很方便(The hardware I2C communication of tm4c1294 is realized)

超声波测距，测量精度为1cm，可以使机器人安全避障。(Ultrasonic distance measurement accuracy of 1cm, can make the robot obstacle avoidance safety.)

none1.The content is too simple 2.Is not a sourcecode or document 3.lost some files 4.Description is not detailed or not correct 5.Compressed file has password 6.Sourcecode duplicate or already exist Please do not upload copyrighted content and the file which has trojan or virus

说明：  由于超声波指向性强，能量消耗缓慢，在介质中传播的距离较远，因而超声波经常用于距离的测量，如测距仪和物位测量仪等都可以通过超声波来实现。利用超声波检测往往比较迅速、方便、计算简单、易于做到实时控制，并且在测量精度方面能达到工业实用的要求，因此在移动机器人研制上也得到了广泛的应用。(Because of its strong directivity, slow energy consumption and long propagation distance in the medium, ultrasound is often used for distance measurement, such as range finder and level gauge, which can be achieved by ultrasound. Ultrasound detection is often fast, convenient, simple in calculation, easy to achieve real-time control, and can meet the requirements of industrial application in measurement accuracy, so it has been widely used in the development of mobile robots.)

public static void main Source Code for Andriod.

使用STM32F103单片机DSP库函数编写的FFT1024点快速傅里叶变换，数据来源是ADC数据采集，通过串口打印输出变换后的结果。(Use STM32F103 microcontroller DSP library functions written FFT1024 point fast Fourier transform, data source is the ADC data capture, results through the serial port printout after conversion.)