About: Ibrar Ayyub

This is the lowest cost dialing alarm on the market and shows what can be done with an 8-pin microcontroller. The complete circuit is shown below. You cannot see all the features of this project by looking at the circuit – most of them are contained in the program. So, read on and see what we have […]

View 1: OSHChip_V1.0 is a unique combination of ARM Cortex-M0 32 bit processor running at 16 MHz 2.4 GHz Bluetooth Low Energy radio Broad range of built-in Peripheral functions 256 KBytes of Flash memory for program and data 32 KBytes of SRAM Miniature packaging, compatible with bread board construction Support for in-system debugging including breakpoints […]

An In-Circuit Debugger (ICD) is a very powerful and effective tool for real-time debugging of a microcontroller-based system at hardware level. It allows you to run, halt and single step the program while the target microcontroller is embedded in the actual circuit. Once halted, the program variables, Special Function Registers (SFRs), RAM and EEPROM locations can be examined and modified […]

Introduction If you move a bright light fast by the eyes, it will leave a line behind because the human brain and eyes are slow to interpret fast changes in light intensity, leaving an afterglow. If a row of LED’s is moved sideways while the LED’s intensity is changed, an image will shortly visualize in […]

overview There are three PIC source versions: PB12 is for 12-bit slave devices without interrupt PBUS is for slave devices with an interrupt, software UART implementation PB628 is for slave devices with an intterupt and a free hardware UART PBUS assigns a unique device ID in the range 1-f for every controller on the bus. […]

Selecting the right microcontroller for a product can be a daunting task. Not only are there a number of technical features to consider, there are also business case issues such as cost and lead-times that can cripple a project. At the start of a project there is a great temptation to jump in and start […]

Guys, in this step by step instruction, I wanna share my private experiment with PIC16F877A and assembly language, I call it Build yourself flashing message on PIC16F877A with assembler Let’s prepare the parts Step 1: The parts needed for this experiment 1. PIC 16F877A chip 2. The board for PIC 16F877A 3. LCD 16×2 4. […]

This document describes how to generate composite color video signals in software using an SX microcontroller. First the document describes the video signal and after that how to do it in software. There is also a zippped PDF-version (1.54MB) of this document, that is better if you wnat to print it to paper. (Note: The […]

Book Introduction: PIC Microcontrollers provides a comprehensive and fully illustrated introduction to microelectronic systems principles using the best-selling PIC16 range. Building on the success of previous editions, this third edition will enable readers to understand PIC products and related programming tools, and develop relevant design skills in order to successfully create new projects. Key features […]

This unipolar stepper motor driver circuit is used to drive a 12V unipolar stepper motor with a current rating of 1.25A. It uses PCA9537 IC, which is a 10-pin CMOS device that provides 4 bits of General Purpose I/O (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications. It consists of a 4-bit configuration register […]