About: Ibrar Ayyub

The Graphical LCD Text Display is complete!   I’ve used the same Atmel ATMega8 controller that I used in the Composite Video Display.   The interface is the same as well; an 8 bit parallel port with a strobe input and a busy output.   It can be connected directly to a 65C22 8 bit […]

The Text Video Display is complete!   I’ve discovered a simple microcontroller and have taken a new approach to create a 40×25 monochrome text display.   I am using an Atmel ATMega8 controller which contains 1k of SRAM and 8K of Flash ROM.   I store the character data in the SRAM and the font […]

INTRODUCTION:   A lot of electricity is wasted due to ignorance or fault of the user. Sometimes a person in the room turns on all the electric equipments which is of no use to them. As an example, supposedly a person enters in the hall or conference hall (where a large number of tube lights or fans […]

Microcontrollers are capable of detecting binary signals: is the button pressed or not? These are digital signals. When a microcontroller is powered from five volt, it understands zero volts (0V) as a binary 0 and five volts (5V) as a binary 1. But the real world is not so simple and likes to use shades […]

Keypads are parts of HMI or Human Machine Interface and play really important role in a small embedded system where human interaction or human input is needed. Matrix keypads are well known for their simple architecture and ease of interfacing. In this project, we will learn How to interface a 4X4 keypad with AVR ATmega32 […]

Security is a prime concern in our day-today life. Everyone wants to be as much secured as possible. Keypad based password is one of the many method and the most common and easy one to provide security to any system. In this project, we will learn How to design a password protected system using a […]

ADXL335 accelerometer sensor is a MEMS (Microelectromechanical systems) sensor which can measure static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion, shock, or vibration. The accelerometer sensor is used in mobile devices, gaming systems, disk drive protection, image stabilization, sports devices, health devices and etc. The analog outputs are […]

In this project, we will learn How to design an Accelerometer based Hand Gesture Controlled Wheel Chair with AVR ATmega32 Microcontroller for Physically Handicapped. Here, we will use our hand gestures as input signals to drive the wheel chair in different direction and we will display the direction of movement of the wheel chair in […]

A digital clock is a type of clock that displays the time digitally (i.e. in numerals or other symbols), as opposed to an analog clock, where the time is indicated by the positions of rotating hands. The clock/calendar provides seconds, minutes, hours information. The clock operates in either the 24-hour or 12-hour format with AM/PM […]

Update to version 2014-06-13 AVR uartConfig is a small footprint library you can use to config your micro eeprom through uart communication. AVR uartConfig is a set of tools running on Windows, Linux and Mac, made up or: a avrgcc firmware library a commandline utility a gui tool Applications This library prevent you to wire […]