About: Ibrar Ayyub

To create a PCB with 3Drag , by milling , it is necessary to have the G-Code files  for the tracks patterning and for the holes relating to the printed circuit board itself. In this section we describe how to obtain these G-Code files  using a specific plugin for the popular PCB design software ” […]

9 Volt batteries extensively used in various electronics measurement equipment. Powering these devices with  rechargeable batteries can be a cost effective solution. In this post a simple Lithium-ion 9 Volt Battery Charger design with overcharging protection will be presented. Charger is based on PIC16F876A microcontroller and uses its A/D module to monitor current flow into […]

This time I’m starting off with a device I already built, unfortunately there won’t be any photos from the actual build, just a quick article on how I imagined it and how it works. A short story about how the whole thing started My uncle has a nice little place at the countryside at about […]

Introduction   I’ve always wanted to build an electronic led dice, but something different from what we see on the internet. Making it motion controlled… now that’s new!   Many new cell phones that have accelerometers built in also have dice games. These dice move when shaking the cell phone. My Led Dice project will […]

Features Bidirectional Synchronous Boost Capacitor Charger/Buck Regulator for System Backup Wide Input Voltage Range: 3V to 17V Up to 40V Capacitor Voltage Storage for High Energy Backup 2A Maximum CAP Charge Current Integrated Power N-Channel MOSFETs (150mΩ Top and 75mΩ Bottom) Integrated Power N-Channel MOSFET for Output/CAP Disconnect (50mΩ) Input Current Limit During Charging Fast 1MHz Switching Frequency […]

1. Presentation For some time now, I think the commercially available garlands, are too boring, too repetitive with their two or three alternations of colored bulbs. I wanted to create a truly personalized one without ruin me either. Two ideas immediately came: – a microprocessor to control all the lights, but at the cost of […]

The photo shows a PIC16F84 microprocessor board tethered, by ribbon cable, to a circuit having 8 LEDs and an 8-position DIP switch. Learning a microprocessor’s capabilities often demands such a setup where LEDs turn on/off, blink at desired rates and respond to switches. This tutorial serves to quickly accelerate your PIC16F84 development ambitions. Motivation and […]

Graphics processor firm Nvidia sees a big opportunity for its GPUs in high performance computing (HPC), sometimes referred to as supercomputing. not have the programmable flexibility of CPUs. Maybe a decade ago research showed that by using many GPUs in a low latency (ie with high speed interconnect) it was possible to create a powerful […]

 Description The ENC28J60 is Microchip’s first incursion into the ethernet controller arena, this new device includes all MAC & PHY IEEE 802.3 10BaseT functions, 8KB of dual access RAM packet buffer and a SPI serial interface, all in a convenient 28-pin package (SPDIP, SOIC, SSOP and QFN packages available). It takes just few components to […]

Introduction I get a number of emails every month asking about creating USB devices using the PIC18F microcontroller. After looking at projects such as my Atari Joystick USB Adaptor and C64 VICE Front-End there seems to be a demand for more information on how to ‘hack your own’. In this article I will show how […]