Technology has been moving towards automation for a long time. The basic principle of technology is to make life easier by explicitly leaving fewer things man. There no doubt that the future; most importantly, it takes place directly in environment. It makes and all aspects. Globally, automated systems are preferred manual systems. increasing number Internet users over past few decades made an ...

Authors James McDonald: Co-founder and president of Cactus Semiconductor, a fabless semiconductor firm that specializes in custom medical integrated circuits including ASICs used in implantable applications Steven Dean: Global medical market lead for Freescale David Niewolny: Medical segment manager with Freescale’s Microcontroller Solutions Group Donnie Garcia: Systems engineer with Freescale’...

In this paper a Microcontroller based intelligent digital volume controller is presented to control music system and PC speaker volume digitally and change volume levels automatically in case of certain predefined incidents such as incoming or outgoing telephone call and pre-set alarm. The device is constructed with AT89S52 microcontroller, from ATMEL family with 8051 architecture, and its soft...

The design of a Maximum Power Tracking (MPPT) controller for a solar photovoltaic system is proposed utilizing a buckconverter topology. Solar panel voltage and current are continuously monitored by a closed-loop microcontroller based control system, and the duty cycle of the buck converter will be continuously adjusted to extract the maximum power. MATLAB Simulation will be used for the initia...

Resistive sensors configured as Wheatstone bridges are primarily used to sense pressure, temperature or loads. An external A/D converter (ADC) and a digitally Programmable Gain Amplifier (PGA) can easily be used to convert the difference voltage from these resistor bridge sensors to usable digital words for manipulation by the microcontroller. When the PGA is used in this system, the other chan...