jianyishizhong

电子爱好者们经常希望测试自己的音频设备如声卡、碟机、功放、音箱等的性能指标，却苦于没有价格高昂的专业测试设备而无从下手，设计制作时也无法进行必要的测试指导。有些CD碟提供了测试信号，如著名的“雨果发烧碟（一）”、“My Disk”等，《无线电》也曾推出音频测试CD。但CD信号的精度有限，而且没有操作系统的配合，测量、记录和分析都很不方便。(Electronic fans often want to test their audio devices such as sound cards, CD, amplifier, speakers and other performance indicators, but have no specialized test equipment without the high price the start, can not carry out the necessary tests to guide the design of production. Some CD discs provide a test signal, such as the famous Hugo Audiophile CD (a) , My Disk and so on, Radio has launched an audio test CD. CD signal but the accuracy is limited, and there is no tie, measurement, recording and analysis of the operating system is very inconvenient.)

使用奇异值分解算法的prony算法用于电机故障诊断(SVD algorithm prony algorithm for the motor fault diagnosis)

说明：  stm32通过计数器测频率，很好的资料，希望帮到大家。(Stm32 through the counter measurement frequency, good information, hope to help you.)

36-SMS Controller ATMEGA32 T10s

Leave the network and children but rejoin

Android版多屏互动是公司根据市场需求推出的一项新功能。该软件实现模拟PC和电视的遥控器、鼠标和键盘操作，并可以将PC的屏幕和视频发送至TV和手机，实现真正意义上的多屏互动 (Android version of the multi-screen interaction is a new feature introduced in the company based on market demand. The software simulation of the PC and the TV remote control, mouse and keyboard, and you can send your PC to the TV screen and video and mobile, multi-screen interactive real sense of)

STM32直接驱动段式液晶屏，程序已调试通过，有完整的原理图说明及原理图，希望对各位有用。(STM32 direct drive Segment LCD screen, program debugging through a complete schematic description and schematic, want to be useful.)

笔记本键盘测试程序，可以测试键盘按键是否有作用。(Notebook keyboard test program.)

1.BS83B12A-3芯片内部外设程序库 2.V10支持时钟，定时器，EEPROM(1. BS83B12A- 3 chip internal peripherals library Block 2. V10 support clock, timer, EEPROM)

扫描4X4键盘,并将键值在数码管和8个LED上显示,同时将键值通过串口或RS232端口或USB发送给PC机接收并解码来自标准键盘的基本按键的扫描码。(4X4 keypad scanning, and key in the digital tube and eight LED display, while the key through the serial port or RS232 port or a USB send the PC to receive and decode the scan code of the key from the standard keyboard.)