led -位操作

说明：  这是基于stc11F60XE的语音识别程序，编译环境keil4(This is a speech recognition program based on stc11F60XE, compiler environment keil4)

基于stc12c5a60s2瓦斯采集报警 上限可设，12864显示(Based stc12c5a60s2 gas gathering alarm limit can be set, 12864)

说明：  读取OV2640采集的图像，二值化输出到LCD(Read the image captured by OV2640 and output it to LCD by binarization)

小车测速显示 已经测速通过 基于stm51单片机(Car speed display has speed microcontroller-based stm51)

区域中央空调市场调研报告，市场调研报告模板(Regional central air-conditioning market research report, market research report template)

In this paper we uate the performance of cooperative spectrum sensing (CSS) where each cognitive radio (CR) employs an improved energy detector (IED) with multiple antennas and uses selection combining (SC) for detecting the primary user (PU) in noisy and faded sensing (S) channels. We derive an expression for the probability of false alarm and expressions for probability of missed detection in non-faded (AWGN) and Rayleigh faded sensing environments in terms of cumulative distribution function (CDF). Each CR transmits its decision about PU via noisy and faded reporting (R) channel to fusion center (FC).

Abstract—This paper describes a new approach for a course and laboratory designed to allow students to develop low-cost prototypes of robotic and other embedded devices that feature Internet connectivity, I/O, networking, a real-time operating system (RTOS), and object-oriented C/C++.

基于51单片机，核心模块mt8880实现的无线电话应急系统，插上电话线，实现报警功能（向手机拨打电话）(Based on 51 MCU the core module mt8880 achieve wireless telephone emergency system, plug in the phone line, alarm function (the phone call))

平台为arduino uno r3，采集温湿度，气压、海拔、土壤湿度信息在5110屏幕上显示，并通过nrf24l01传到另外一个arduino采集板上，然后通过串口传给pc机。传感器有ds18b20，dht11，土壤湿度传感器，bmp085，显示屏为5110，一对nrf24l01。library文件夹下为所需的各种库。(The platform for Arduino uno R3, collecting temperature and humidity, air pressure, altitude, soil moisture information displayed in the 5110 screen, and through the nRF24L01 to another Arduino acquisition board, then transferred to the PC through the serial port. The sensor has DS18B20, DHT11, soil humidity sensor, bmp085, display screen is 5110, a pair of nrf24l01.Library folder is required for various libraries.)

通过HT9200 进行拨号,电路部分不再上传