About: Ibrar Ayyub

We are building another enjoyable weekend DIY project. This is an audio power amplifier based on LM1876 which can deliver up to 20W per channel into 4 or 8 ohm load and guarantees less than 0.1% THD + N (Total Harmonic Distortion + Noise). The amplifier is powered by -15 0 15 VAC symmetrical supply. […]

Build a low-cost and very simple serial programmer for a PIC16F84 Microchip Flash Microcontroller. Below picture is my personal writer for F84 chip, it works very nice with Nigel WPicProg V1.20. Introduction I finally found a very nice universal window based software designed to work with any serial programmers for PIC16F84, i.e., WPicProg16 V1.20, written […]

The abbreviation of PIC is the “Peripheral  Interface Controller”, and it is a family of the microcontroller. This microcontroller is manufactured by various companies like the microchip, NXP etc. This microcontroller comprises Analog to digital converters, memories, timers/counters, serial communication and interrupts assembled into a single IC. When we select PIC microcontrollers for PIC projects […]

Oscilloscopes and Signal Generators are two essential electronics devices to create and test electronic circuits. Unfortunately, these devices are very expensives for students starting electronics, or makers who want use electronic circuits in their creations just once… The idea of my project is to rethink your smartphone as a portable, powerful and secured platform, able […]

This is a quick project for a timer. Recently I finished my UV light exposure box and thought that it will be convenient to have a build in timer to switch off the light after preset time. So I had a PIC16F628A lying around and after searching the web I found a Brazilian site (I […]

Teensy-LC (Low Cost) is a powerful 32 bit microcontroller board, with a rich set of hardware peripherals, at a very affordable price! Teensy-LC delivers an impressive collection of capabilities to make modern electronic projects simpler. It features an ARM Cortex-M0+ processor at 48 MHz, 62K Flash, 8K RAM, 12 bit analog input & output, hardware […]

Here is a simple example for PIC microcontroller interfacing  Unipolar stepping motor with assembly code. Instead of using a dedicated stepper motor driver IC like very popular L293D   PIC16F with ULN2003A were used. Just 4 I/O Pins are required to drive each coil of the motor. By energizing each coil in a particular sequence you can control the […]

Features Boost Charge Pump Generates 2 • VIN_P (VIN_P Range: 4.5V to 16V) Inverting Charge Pump Generates –VIN_N (VIN_N Range: 4.5V to 32V) Low Noise Positive LDO Post Regulator Up to 50mA Low Noise Negative LDO Post Regulator Up to 50mA 135μA Quiescent Current in Burst Mode® Operation with Both LDO Regulators On 50kHz to 500kHz Programmable Oscillator […]

Hi All I’m not going into as much depth with this instructable due to my current time constraints.  That said, I fully plan on updating this instructable as time progresses with new algorithms and programs for optimization. Intro: I was messing around with some new stepper motors one day, and I decided to make a […]

This project shows you how to create a serial LCD module that you can drive from any serial RS232 interface. It uses a pure ASCII command set so you can control it easily from a terminal program such as Hyperterminal. There  are no ‘odd’ command sequences such as 0xef to define a command  – you can […]