About: Ibrar Ayyub

Here I discuss on very good and simple project on displaying text on LCD by interfaced with PIC16F877 microcontroller in 4 bit mode.to start with this project you need some Knowledge on how to start project on PIC micro controller I assumed you know that if not please you should visit my previous post Step […]

After making the tetris game, it was very easy to make a Pong game. The game Pong was the world’s first video game in the early 70’s; this is a modern version of it, made with a little bit less hardware than the original version. In my version, the video signal is generated in software. […]

Crossbar, the RRAM specialist, says it has solved a major obstacle to RRAM’s commercialisation – what Crossbar calls ‘sneak path current’ which is akin to leakage in CMOS circuits but particularly destructive in RRAMS. This, breakthrough, says a Crossbar press release: “Signals Crossbar’s 3D RRAM readiness for commercialisation of Terabyte storage-on-a-chip.” So how far away […]

This simple circuit designed around Solid State Relay S216S02 from SHARP. The S216S02 solid State Relay (SSR) is an integration of an infrared emitting diode (IRED), a Phototraic Detector and a main output Traic. These devices are ideally suited for controlling high voltage AC loads with solid state reliability while providing 4KV isolation from input […]

Those days when I come home at night and strait into the darkness are finally over. This is a very practical device and I built it so that it is a module to my Dual Channel IR Remote Control. Because of that I ended up with a definite overkill of what is supposed to be […]

The first game I made in color using SX-chips was Tetris. Tetris is an old Russian computer game where you should try to fit in block into a play-field, quite simple but really fun. All blocks are built from four bricks (the name Tetris is derived from the ancient greek word for four: “tetra”), there […]

Implementing ICSP requires connections to a minimum of 5 processor pins: VDD, VPP (also MCLR\), SCLK (on RB6), SDAT (on RB7), and GND. VDD and GND are straightforward. In most applications, it is best to dedicate RB6 and RB& for SCLK and SDAT. This avoids potential complications when these signals are used during programming. Microchip […]

RF Probe Today I finally got round to building a nice little RF probe kit from Rex, w1rex, the Tuna King over at QRPme. I took the well-executed PCB which – unusually for Rex – had through hole mounting for the components rather than the ‘Limerick’ construction that recently I’ve come to associate with him… […]

This is a revised version of my LM35 based digital thermometer project that I posted last year. Although it is one of the simplest projects, it is very popular among newbies who are just starting to learn microcontrollers. There was a little flaw in the original project as pointed by some readers. I was using a […]

This page describes a SX28-based color video game system I made during year 2002. Now, beginning of 2007, almost five years after I made the first design I’ve updated the layout of the PCB and added a version of the PCB that has built-in gamepads and I also have made it possible to buy PCBs, […]