About: Ibrar Ayyub

the Design Idea circuit shown below is a simple implementation of an iterated unimodal map, reminiscent of the logistic or Verhulst map encountered in the study of nonlinear dynamics. It is useful to show chaotic discrete-time dynamics to students, or as a random number generator. Specifically, the circuit implements: Vk+1 = rF(Vk), where F is […]

This loader connects the PC printer port and works with WinPic800. The loader gets DC supply from application board and provides +12V for high voltage programming mode. We can use it for programming many PIC chips easily. Hardware Schematic The In-circuit serial programming for PIC chips requires only three signals, i.e. a bi-directional DATA line […]

The Microchip PIC32 is a family of complex and powerful microcontrollers that can be purchased for less than $10 in quantities of one. This microcontroller offers many peripherals useful for mechatronics purposes, such as several channels for analog-to-digital conversion, digital I/O, synchronous and asynchronous serial communication, pulse width modulation, etc. For our purposes, the primary […]

USB PROJECT: – USB INTERFACE BOARD USING PIC18F4550 Microcontroller CONTROL – 6 LEDS C# software ( 4.0 .net framework) PIC18F4550 Firmware – for 6 LED’s. TUTORIAL FOR BEGINNERS It’s a low cost USB interface Board that provides cool interface to your computer and it can be used to control various devices like DC Motor, Stepper […]

Step 1 Scavenging Parts What I’d like to do for this crazy/ambitions project is turn an old cell phone into a smartwatch. So obviously an old cell phone is required. The primary reason for this project is simply that I had an old cell phone laying around and wanted to find a creative way to […]

For applications demanding low power and longer battery life, the PIC32MM has sleep modes down to 500 nA. Applications with space constraints will benefit from the small 4x4mm package options. The PIC32MM devices include core independent peripherals, designed to offload the CPU for lower power and flexible system design, such as Configurable Logic Cells (CLC) […]

When I was working on the the latest version of the Common Parts Library, I realized that it would be helpful to explain why you might pick one type of inductor over another. We started off this series by writing “How to select a capacitor,” followed by “How to select a resistor,” and are continuing […]

Hi all! Here’s the new project where I’m working a couple of days. Since I develop the SIM900 module and test it, I don’t work with it. Also, I’ve got at home some samples of the MCP2200 USB bridge that I want to test it. So make an USB interface for this board was the […]

In EMRFD, 4.10, Wes provides the schema for a versatile VXO – extending frequency synthesizer. Although, I referred him to Wes for help, a reader asked me some questions and I ended up designing some pieces for him. In order to test some of my ideas, I made a VXO – based synthesizer that tuned […]

To celebrate 60 years of EDN, we’re looking into the future to predict what advancements will be made in IC Design in the next 60 years. By 2076 3-D room-temperature, superconducting, quantum, neuromorphic, and photonic mixed-signal devices will be the common denominator for all integrated circuit designs. Design tools will be so sophisticated that even […]