The Telescope Focus Controller was designed to allow computer control of the telescope focus position through a serial port. It also allows manual control through clockwise and counter-clockwise buttons on the telescope’s keypad. To turns the focus shaft of a telescope, The project use stepper motor to do it. The project consist of microcontroller [...]
This project show you how to build Unipolar Stepper Motor driver for high current. The driver able to handle up to 20A. The main component in this driver is L297. While the driver circuit is more or less taken from the L297 datasheet. More features from the project are : Handles a maximum of [...]
This project enables you to drive two unipolar stepper motor or eight electric light bulb or DC motors. There are eight DC power switch you can open or close through PC parallel port. For safety reason, digital interface to PC uses optocouplers. You can connect up to six circuits to a single LPT, driving up [...]
Power Engineering International is the leading magazine for the global electric power generation and transmission industry. It provides articles on new technologies and installations and analysis. Subscribe Power Engineering Magazine for free - limited.
EDN magazine provides how-to solutions for design engineers in the electronics industry. Engineers turn to EDN because they know they will always find valuable design techniques that they can use to do their jobs faster. Subscribe EDN Magazine for free
Oracle Magazine contains technology strategy articles, sample code, tips, Oracle and partner news, how to articles for developers and DBAs, and more. Oracle (NASDAQ: ORCL) is the world's largest enterprise software company. Get it For free
