In times like these it’s important to take measures to sterilize or disinfect surfaces or things we interact with daily. Applying sanitizer or lotions may not be a viable solution in many circumstances. Did you know Ultraviolet lights of certain…
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Electronic dice can be a good and fun alternative to traditional dice when enjoying our board games. We have designed a Electronic dice circuit which will generate random number from 0 to 6. The specialty of this circuit is that…
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Cooking can be grueling experience if kitchen is not ventilated properly. Despite good ventilation sometimes we need an exhaust fan to moderate the temperature in kitchen while cooking. But when we are so busy cooking, we often forget the fan…
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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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Identifying unknown voltage is something we often come across when working with circuits. Of course Multimeter is the perfect tool for this application. But recently I came across a situation where my Multimeter turned out to be faulty and I…
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Designing PCBs have become quite easier, thanks to the loads of tools available. For a beginner who is getting his hands on PCB designing, he may not be too much concerned about characteristics of trace used in PCB. However when…
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LED based music spectrum is quite famous and almost everyone would have used music systems which has one of these. With some components, LEDs and some wires we can make this type of music spectrum. But here in this circuit…
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