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Automatic bidirectional visitor counter using 8051 microcontroller (AT89C51)

A counter that can change its state in either direction, under control of an up–down selector input, is known as an up–down counter. The ...
Running LED or LED chaser Using AVR

Running LED or LED chaser Using AVR OBJECTIVE : The main objective of this project is build a Running LED or LED chaser Using A...
Interfacing of 4x4 matrix keyboard and 4 digit 7 segment display

4 scan lines are sufficient to scan matrix keyboard and to select display digits. Hence decoded mode is used.
Simple Digital clock using 8051 microcontroller (AT89C51)

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Interfacing of 8255 with 8085 processor
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Clap counter using 8051 microcontroller

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Intel-8080 Microprocessor & Architecture

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