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单片机编程 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 and I2C-bus applications. The PCA9557 consists of an 8-bit input port register,
8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption
and a high-impedance open-dra ...
电源技术 DN436微型全桥压电马达驱动器
 
Piezoelectric motors are used in digital cameras for autofocus,zooming and optical image stabilization. Theyare relatively small, lightweight and effi cient, but theyalso require a complicated driving scheme. Traditionally,this challenge has been met with the use ofseparatecircuits, inclu ...
技术资料 基于单片机温度采集与报警系统的研究
利用DS18B20设计一种多路温度数据采集和直流电机散热系统,可实现语音播报功能。系统主要由单片机电路和一组DS18B20数字传感器构成,同时具有温度显示、数据存储和串行通信模块。通过keil软件编写和调试程序,并利用Proteus仿真测试硬件电路,测温范围-10~+45℃,最后通过LCD1602显示所测温度。将制作实物与温度计置于相同设定温 ...