Zaid Pirwani

an all-round Engineering and Technology Geek, founder EjaadTech and Pop Up Learning – IT Manager at FESF

  • 8×8 LED Matrix – Dot-Matrix Font Demo

    8×8 LED Matrix – Dot-Matrix Font Demo

    Another day, another LED Matrix video. These 64 LED packs have got me fixed on them and I have been trying all sorts of stuff… VIDEO AT THE END I have finally made a completely proper circuit on breadboard with 2x 74HC595s and 1x ULN2803 for current sinking and resistors for current limiting. The first…

  • Pakistan’s Independence Day 2012 – LED Matrix Display

    Pakistan’s Independence Day 2012 – LED Matrix Display

    I finally completed writing code for a Marquee Display and since I used the morning of 14th August to write this code, the least I could do was to celebrate Pakistan’s Independence Day as the first message and test for my code. The code has DEFINE(s) for Display Length, Message Length, Speed Control and a…

  • UART Library [Quick Tutorial]

    UART Library [Quick Tutorial]

    Having easy UART Functionality can be of great use in AVR Projects, even if they don’t need the UART fucntionality, the UART can be used as a great debugging tool (sending program status to the UART as a console). Peter Fleury has a AVR UART Library as well along with his AVR LCD Library which…

  • (R)Evolutionary Software

    (R)Evolutionary Software

    I have always been fascinated by the concept of Singularity / Artificial Intelligence and things of this sort. However, I do realize that things like this are still quite far out the reach of becoming reality. But still, it doesn’t hurt to try, like this Regression Analysis System – EUREQA (http://creativemachines.cornell.edu/eureqa/) which can detect relationship between…

  • Veroboard Process [Gallery]

    Veroboard Process [Gallery]

    The below images will show how I start and end when making a circuit on vero-board, this is the process which I follow most of the time. Visualize the Circuit: Having a diagram handy comes a long way for quick reference, it doesn’t need to be very professionally drawn or accurate, just good enough to…