Electrofriends

8051 Microcontroller port programming

by Ranjith | November 19th, 2008.
8051 Microcontroller port programming

There are four ports P0, P1, P2  and  P3 each  use  8 pins,  making  them 8-bit  ports. All the ports upon  RESET are configured as output, ready to be used as output ports. To use any of these ports as an input port, it must be programmed.
Pin configuration of 8051/8031 microcontroller.
Port 0: Port 0 occupies [...]

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Automated multistoried car parking system

by Ranjith | November 7th, 2008.
Automated multistoried car parking system

Introduction
Basic idea
Hardware description

Display section
Keyboard, Indicator & Beeper section
Lift & motor section
Sensor section
LCD section

Software program

1.Introduction:
Automatic multistoried car parking system helps to minimize the car parking area. In the modern world, where parking-space has become a very big problem and in the era of miniaturization, it is become a very crucial necessity to avoid the wastage of [...]

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Automatic Railway Gate Control & Track Switching

by Ranjith | November 6th, 2008.
Automatic Railway Gate Control & Track Switching

Present project is designed using 8051 microcontroller to avoid railway accidents happening at unattended railway gates, if implemented in spirit. This project utilizes two powerful IR transmitters and two receivers; one pair of transmitter and receiver is fixed at up side (from where the train comes) at a level higher than a human being in [...]

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