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技术资料 基于AT89S51单片机的温室大棚智能通风灌溉系统设计
结合现代农业温室大棚生产特点,以AT89S51 单片机为控制核心,利用DS18B20 单总线数字温度传感和YL-69 土壤湿度传感器检测器测量大棚和土壤湿度,并通过测量结果控制通风换气装置和滴灌水泵,实现温室大棚温度和土壤湿度智能管理控制。Combined with the characteristics of modern agricultural greenhouse production, the AT ...
技术资料 无刷永磁电机功率控制在健身车之应用
·摘要:電機機械(electric machinery，簡稱電機)是把機械能與電能作互相轉換的裝置(device)。當這種裝置用來把機械能轉換成電能時，稱為發電機(generator)；用來把電能轉換成機械能時，則稱為馬達(motor)。學理上，發電機和馬達都是經由電場和磁場的交互作用來達成能量的轉換。本文探討無刷永磁電機在發電機和馬達兩種模式 ...
单片机编程 PCF8578 LCD图形点阵液晶驱动器芯片简介及封装库
The PCF8578 is a low power CMOS1 LCD row and column driver, designed to drive dotmatrix graphic displays at multiplex rates of 1:8, 1:16, 1:24 or 1:32. The device has40 outputs, of which 24 are programmable and configurable for the following ratios ofrows/columns: 32¤8, 24¤16, 16¤24 or 8¤32. The ...
单片机编程 阳初S3C2440开发板使用手册
S3C2440开发板使用手册:在阳初2440 开发板上，我们使用了mizi 公司开发的开放源代码启动程序vivi 来作为bootloader，在原有vivi的基础上，我们增加了VGA/TV芯片初始化等功能。vivi我们使用来下载Linux 的映象，将来会扩展到支持下载WindowsCE 的映象。经阳初改进后，vivi的基本功能－ 启动操作系统－ 通过xmodem协议下载映 ...
通信网络 移动设备管理与OMA DM协议
移动设备管理(Mobile Device Management)正是应对这种管理挑战而产生的，确保所有连接到运营商网络的移动设备能够提供高质量的移动数据服务。移动设备管理提供了对2G、3G、WiMAX等移动设备的支持。OMA基于OTA(over-the-air)的设备管理框架为移动设备管理提供了一种解决方案，OMA DM协议明确独立于承载网络，因此该协议可以 ...
文章/文档 The Inter IC bus or I2C bus is a simple bidirectional two wire bus designed primarily for general co
The Inter IC bus or I2C bus is a simple bidirectional two wire bus designed primarily for general control
and data transfer communication between ICs.
Some of the features of the I2C bus are:
&#8226 Two signal lines, a serial data line (SDA) and a serial clock line (SCL), and ground are required. A
...
驱动编程 This manual describes SAMSUNG s S3C2410A 16/32-bit RISC microprocessor. This product is designed to
This manual describes SAMSUNG s S3C2410A 16/32-bit RISC microprocessor. This product is designed to provide
hand-held devices and general applications with cost-effective, low-power, and high-performance micro-controller
solution in small die size. To reduce total system cost, the S3C2410A includes ...
微处理器开发 This manual describes SAMSUNG s S3C2410X 16/32-bit RISC microprocessor. This product is designed to
This manual describes SAMSUNG s S3C2410X 16/32-bit RISC microprocessor. This product is designed to
provide hand-held devices and general applications with cost-effective, low-power, and high-performance microcontroller
solution in small die size. To reduce total system cost, the S3C2410X includes t ...
书籍 Bio Medical CMOS IC
A major societal challenge for the decades to come will be the delivery of effective
medical services while at the same time curbing the growing cost of healthcare.
It is expected that new concepts-particularly electronically assisted healthcare will
provide an answer. This will include new devices, ...
技术资料 AP2406技术手册
The AP2406 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium- ...