Nowadays, door bells are very common in every house. We daily observe different types of door bells are available in the market and they produce
Human detection robot is not a new technology. Many types of human detection robots were designed depending on the application. During the natural calamities like
Relays are flexible switches in electronic circuits. There are different kinds, including electromechanical, solid-state, reed, and thermal relays. Each type has its own uses, benefits,
This article describes the principle, design and operation of a digital stopwatch circuit. A digital stopwatch can be a circuit displaying the actual time in
This article is written to describe the design and working of a simple LED cube circuit. Most of the LED cube circuits are designed using
FM Radio circuit is the simple circuit that can be tuned to the required frequency locally. This article describes the circuit of FM radio circuit.
Audio tone control circuits are mainly used for 2 reasons. The first reason is to control the BANDWIDTH of the signal, which is entering into
A Smoke Detector is a smoke sensing device that indicates fire. Smoke Detectors are very common in homes, offices, schools and industries. Smoke Detectors are
Generally, street lights are switched on for whole night and during the day, they are switched off. But during the night time, street lights are
The sophisticated modern electrical grid gives us access to power almost everywhere and any time. It is hard to imagine life without electricity even for
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