About: Ibrar Ayyub

Whac-a-Veggie For this year’s Trunk ‘O’ Treat game I wanted to make a something fun and exciting for kids to play so I choose a Whac- a-Mole type game called Whac-a-Veggie using the Veggie Tales characters.   The Whac-a-Veggie game is played with a foam hammer in your hand and the veggie characters randomly popping-up […]

 Description This project functions as a simple strobe for driving an LED.  The use of an output transistor allows it to pulse the strobe LED with a current up to 100mA. Four jumpers provide options for changing the pulse width, strobe repeat interval and single or double strobe flash.  The programmer ready code has default […]

Although scientists are still working toward replacing lithium-ion (Li-ion) batteries with lithium-air (Li-air), or lithium-oxygen, batteries, researchers at the University of Cambridge have developed a lab-based demonstrator of such a battery. It is safe to say we still have another decade before we can begin to utilize such powerful batteries as scientists work to make […]

PORTLAND, Ore. — In its rush to get to market “while the iron is hot,” Vesper Technologies Inc. (Boston) has announced what it still claims is the industry’s highest signal-to-ratio (SNR) for a high-definition (HD) microelectromechanical system (MEMS) microphone, even though it is scaled back to 68dB rather than the astounding 70dB SNR MEMS mic […]

IRMimic features: Simple to train – Can learn up to 16 IR commands, and each can be in a different format/protocol Two different operating modes – Keypad or MCU interface LED indicator output – Indicates training is complete Small size – 18 pin DIP IC Chip operates from 3-5 volts DC Standby mode permits battery […]

The 16F84 is deserves looking at because it is the GranDaddy of PIC Microcontrollers but you should not use it for new designs (see Below)… The PIC16F84 is a the most well known and most well used of all the PIC microcontrollers – it is used in numerous projects that you can find across the web. […]

1 Features Relative Humidity Accuracy ±3% (typical) Temperature Accuracy ±0.2°C (typical) 14 Bit Measurement Resolution 100 nA Sleep Mode Current Average Supply Current: 710 nA @ 1sps, 11 bit RH Measurement 1.3 µA @ 1sps, 11 bit RH and Temperature Measurement Supply Voltage 2.7 V to 5.5 V Small 3 mm x 3 mm Device […]

USB Voltmeter USB Voltmeter is a PC based dual channel voltmeter built around PIC18F2455 / PIC18F2550 microcontroller that measures voltage from 0.00V up to 500.00V with 10mV resolution. USB Voltmeter sends measured data to PC via standard USB connection displaying data on a computer monitor. USB Voltmeter is self-powered drawing very little current from USB […]

This is a simulation project that shows how to write program in assembly language for PIC16F84A microcontroller that turns on a single LED and use it in Proteus VSM to stimulate the working of the microcontroller controlled LED. To do this start by creating a new project in Proteus, give some name and save it […]

This application note addresses the various requirements for protecting the Universal Serial Bus (USB) from overcurrent and over voltage environmental threats.The solutions presented cover both USB 1.1 and the higher speed USB 2.0 circuitry. Specific emphasis is placed on USB 2.0 with infor- mation directed at hot connection over current conditions and electrostatic discharge (ESD) […]