About: Ibrar Ayyub

Reverse Engineering to Emulate Ink Cartridges for a Epson Printer For the past two years, I’ve been planning to build myself a 3D printer from some old Inkjet printers that I had collected over the years. But not until two weeks ago had I actually started to work on it. The 3D printer I want […]

What is meant by Analog to Digital Converter (ADC)? An ADC converts analog signal to it’s corresponding digital signal. How to convert analog signal to digital signal? CircuitsGallery.com has already posted ADC using LM324 IC, in that ADC tutorial I had already explained Analog to Digital Converter how it works. While dealing with Microcontrollers we may […]

JDM2 based PIC Programmer Schematic & layout for an updated JDM2 PIC Programmer. Includes clock & data filter, Vpp voltage divider for modern PIC microcontrollers (eg USB PIC 18F2455/4455). Prior to reading sites like www.hackaday.com & www.makezine.com/blog I had worked only with the Amtel/AVR line of microcontrollers. After seeing all the cool projects people were […]

1.a  History: The first single-chip microprocessor was the 4-bit Intel 4004 released in 1971. With the Intel 8008 and more capable microprocessors available over the next several years. These however all required external chip(s) to implement a working system, raising total system cost, and making it impossible to economically computerize appliances.   The first computer […]

The automotive industries are now into electronics applications in which embedded systems are already part of its major components. In this design, it features the Peripheral Sensor Interface 5 (PSI5), which is the most efficient standard interface of sensors and electronic control units in automotive. It supports complete airbag system that includes system power mode […]

Wooden LED clock I really like concept. So many different types of wooden clock have been already built. I’ve seen many of them but I still don’t have my own. What a shame. I’m going to fix it right now. Project is very simple and requires only few common wooden materials and hand tools. Well, […]

Bluetooth Wireless Voltage Meter using Wiimote + Pic Chip + AutoIt In this tutorial I’m going to be showing you how you can send voltage values to your pc using a Pic chip, Wiimote, and Autoit3 scripting language. The process works by wiring a pic chip to the button pads of a wiimote. Then using […]

This simple audio spectrum analyzer is based on PIC32 proto board on PIC32MX360F512L with 320×240px colour LCD (LVC75Z779 Eval Board).  The analyzer can be connected to unamplified audio source like PC’s sound card, MP3 player and so on. SSD1928 Module Schematic diagram The reference voltage of ADC is set to 1V with potentiometer connected to […]

This project demonstrates how to design a wireless electronic notice board using SST89E516RD-40-C-PIE microcontroller. The notice boards are important in public places like railway stations, parks and airports. Presently almost all electronic notice boards are designed using wired system. One of the drawbacks of the design is the system’s flexibility in terms of placement. The […]

comming up soon…