تحميل الهوت ميل الجديد مجانا 2010 hotmail

INTRODUCTION: Data collection, serial communication and wireless signal transmission are a common applications in industrial, medical and scientific area. Sensors data or even the machine control command are used serial communication protocol to transmit to other machines. The user has to carry around an RS232 cable as the communication media.   UART-Link is a low cost, user friendly,  plug and play, wireless network module which is ideal for these applications. It combines 2.4GHz RF (Radio Frequency) chip and MCU with the communication stack with the PCB antenna which provide small size module for different applications.   UART-Link is a RF module based on UART (serial) Protocol. It consists of one ZigBee RFIC and one MCU containing communication stack which allow two ways serial communication.   It provides two ways point-to-point, one-to-many network topologies and 16 Direct Sequence software selectable frequency channels. Up to 57600bps Baud Rate, the UART-Link provides faster serial communication. FEATURES: UART-LINK is interference-free from other wireless devices in the 2.4GHz ISM band such as W-LAN and Bluetooth. One-to-Many wireless communication between different UART-Link modules providing broadcasting communication. UART-Link uses Direct Sequence Spread Spectrum and provides 16 frequency channels for user to set the transmission frequency and receive frequency. The communication distance the UART-Link modules are from 10m to 25m.

UART-Link Network SPECIFICATION: Performance Indoor/Urban Range 10m Outdoor RF line-of-sight Range 25m Transmit Power Output 0dBm (typical) Data Rate 10kbps Receiver Sensitivity -91dBm (typical, 1.0% PER) Transmission type 2 ways, Half Duplex Power Requirement Operating Voltage 3.5V – 12V Transmit Current (typical) 49.5mA (@5V) Idle / Receive Current (typical) 48.5mA (@5V) General Frequency ISM 2.4 GHz Dimensions ( 26.5cm x 31.5cm) Operating Temperature Range -20°C – +80°C Networking and Security Supported Network Topologies Point-to-Point, Peer-to-Peer Point-to-Multipoint Number of Channels 16 Direct Sequence Channels (software selectable) UART requirement Baud Rate 57600bps Data Format 8 Bit, No Parity, 1 Stop Bit

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