Archive for December, 2009

The 2009 Year End Notes

December 18, 2009 by rwb, under Blognote.

First of all I would like to thank to all the ermicroblog readers. I started to write this blog about a year ago; precisely on December 2008, during this year I received a lot of comments and questions and some of it were on my email. For me there are no such a silly questions as I believe that as long as we live in this world we always in the continues learning mode state, therefore what seems silly to some people actually is a really serious question to the other people. I would do my best to answer all the questions regarding this blog contents; as answering the people’s question also is a part of the learning process. (more…)

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PIC18 Pulse Width Modulation (PWM) DC Motor Speed Controller with the RPM Counter Project

December 9, 2009 by rwb, under Microcontroller.

Equipped with sophisticated Enhanced Capture/Compare/PWM (ECCP) peripheral the Microchip PIC18F14K50 microcontroller could produce up to four PWM channels output. The enhanced PWM (Pulse Width Modulation) mode in ECCP peripheral is capable to drive the full bridge DC Motor circuit directly both in forward or reverse direction. It also could generate single PWM output on the selectable PIC18F14K50 pins when it configured in pulse steering mode. (more…)