基于AT89C52單片機的智能呼救系統設計
從系統硬件設計和軟件構成上，介紹一種以AT89C52單片機為核心,通過無線遙控方法實現對預設電話自動撥號報警的智能呼救系統。系統提供了患者在緊急情況下無法使用電話報警時的一種報警手段。由用戶預設的多組...
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A Single-Chip Pulsoximeter Des
This application report discusses the design of non-invasive optical plethysmographyalso called as p...
PCA9555 16bit I2C-bus and SMBu
The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Output (G...
8-bit I2C-bus and SMBus IO port with reset
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus an...
3-V TO 5.5-V MULTICHANNEL RS-2
The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circ...
PCA954X家庭的I C SMBus多路復用器與開關
The Philips family of Multiplexers and Switches consists of bi-directional translating switches cont...
8-bit IC and SMBus IO Port wit
The CAT9534 is an 8-bit parallel input/output portexpander for I²C and SMBus compatible applica...
USB Demonstration for DK3200 w
The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 Microcontrol...
對帶有uPSD3234A的DK3200的USB演示
The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 Microcontrol...
DN381 RFID接收器的基帶電路
Radio Frequency Identifi cation (RFID) technology usesradiated and refl ected RF power to...