Arithmetic and Logic unit popularly known as ALU’s are essential part of digital systems and devices. Since it is a basic building block for digital systems we all must have built one in our engineering or high school. Apart from…
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Beat frequency indicators are used to indicate whenever frequency of a signal of our interest exceeds reference frequency. This is one such indicator circuit which uses LED’s to indicate when our signal exceeds the reference frequency. These indicator circuits can…
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Clock pulses are lifelines of digital circuits and there are different types of oscillators to produce the clock pulses for our circuits. But out of all nothing beats the efficiency and stability of a crystal based oscillator. Even microcontrollers use…
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Password based locking mechanism is a very popular method for safety of our prized possessions. Now with the rapid growth of technology, our locking systems are also modernized. New, better and more functioning Digital code lock have taken the place…
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