Years ago, I designed a PWM motor controller that I used in a dual, four quadrant, wheel chair control. I called it the People Mover. It was built primarily as a technology demonstrator for prospective engineering clients. When my…
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I am a model train buff and have been since I was a kid. Previously I have designed a PWM analog, train speed controller that is also published here on Gadgetronicx. I recently completed a new HO model train track…
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Over the years I have designed and built many different types of Intercoms. I have a patent on a unit that uses piezoelectric discs as speakers for a door mountable intercom. The intercoms always required the user to operate a…
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Who doesn’t love playing games with friends and family. Be it a party or get together a little fun game can make things interesting. This project demonstrates working and building a Laser tag phasor gun that can be used to…
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Whether you are just practicing at home, recording songs for friends, or playing at an open mic night, this equalizer-mixer is a great addition to your sound gear. It has many great features you won’t find on low-cost mixers. The…
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Function generators are quite expensive and due to that many engineers limit themselves by not getting one for their workbench. This hinders many testing and prototyping opportunities. Gladly there is a work around for this, a DIY Function generator that…
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For hobbyist’s, engineers, and electronic enthusiasts, knowing the states of a logic circuit are important pieces of information. In addition, it is important to know what the frequency is of a pulse train. Is it in the audio, ultrasonic spectrum,…
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