Alarms play an important role in our daily life. It assists us from waking up daily morning to carry out chores inside the schedule. Here is a similar minutes alarm circuit that built around famous versatile chip 555 with time…
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Are you among the one who dump electronic appliances once it becomes non functional or insignificant? Think again before doing this next time. Do you know that you can improve your component inventory and reduce E-wastes if you master the…
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Am back with another oscialltor circuit, sawtooth waveform this time. I have designed a mini sawtooth generator using simple NPN and PNP transistors. The most highlighting feature about this circuit will be its miniature size and easy to use on…
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Oscillator circuits are the ones which produces certain waveform with specified frequency. These kind of circuits come in handy when there is a need of signal source for any specified application. Here i have built a primitive Wien bridge oscillator…
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Old CDs are probably very common thing to find in our house. The same happened to me when i checked my computer table where i found out most of the CDs in there are useless and just filling up my…
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Have you ever tried to design a PCB for your lover or children or friends on a special day? Why not? PCB also could be an amazing gift which reveals your creativity also hones your PCB skills. Here I’d like…
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Square waves are extensively used in many digital circuits. Many combinational logic circuits require this wave to operate. Here are few methods you can generate simple square wave using NAND, Inverter and Schmitt Trigger gates. These kind of square wave…
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