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Interfacing an LCD to the 8951 Microcontroller

1 Wednesday, November 19th, 2008  »  Posted By  »  Total 18 Comments

LCD pin descriptions: The LCD discussed in this section has 14 pins. The function of each pin is given in table. Vcc, Vss, and VEE: While Vcc and Vss  provide  +5V and ground, respectively, VEE  is used for controlling LCD contrast. RS – register select: There are two very important registers inside the LCD. The [...]

Digital Code lock using AT89C2051

Digital Code lock using AT89C2051 Tuesday, November 18th, 2008  »  Posted By  »  Total 28 Comments

Here is a project called ‘Digital Code Lock using AT89C2051′. LCD is used for display and a keyboard is used to input  the keys. This project source code is written in C. Both the C files and hex files are given for download. A Brief Description: This a simple project with efficient hacking prevention from [...]

Automated multistoried car parking system

Automated multistoried car parking system Friday, November 7th, 2008  »  Posted By  »  Total 364 Comments

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 [...]

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