Air horns are quite popular and been around for a long time now. Due to its nature of creating loud noise this is used in trucks, engines, vehicles and other locomotives to warn other vehicles and bystanders. Traditional air horns…
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Most of us are held up with our busy life, be it at office or at home. Often due to our workload and carelessness we tend to forget to close the doors in our office or at home. This habit…
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Many of us are familiar with traditional office call bell that is used to alert assistants or other colleagues. It doesn’t have to this boring setup. Here is a simple circuit that can be used as an alternative to this…
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One of my friend recently has got a Cat and he loves him so much. But due to busy schedule with business he couldn’t take care of it properly and only relies on his granny to feed him. The problem…
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Accelerometers are sensor that is used to measure acceleration of itself or the object where the sensor is fixed to. It is capable of measuring acceleration occurring due to external forces applied and also gravity. This Acceleration sensing alarm circuit…
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Metal detectors are gadgets that is capable of detecting metal elements on a surface. The proximity at which the detectors can detect metals depends on the detector’s range it can cover. Here in this Metal detector circuit we are using…
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When speaking of Smoke sensor circuits we often think about implementing it using Microcontrollers or using a development boards. But in fact there are possible ways you can build a simple smoke alarm without using dedicated sensors or microcontroller. In…
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