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 [...]

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 [...]

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 [...]