About: Ibrar Ayyub

Why Stk500 and USB? Until the beginning of this year a simple parallel port programmer was the only good programmer as it could be used for any device. All device dependent information is stored in the programmer software on your computer. The problem is however that the parallel port is slowly disappearing. Apple does not […]

iPad Design Like the iPhone, the iPad is primarily a touch device. The front is dominated by a 9.7-inch (24.6-centimeter) touch screen, with a single button (the same Home button found on the iPhone) placed below it. Apple offers two different iPad colors: one with a black face bezel and one with a white face […]

Compatible with AvrStudio Supports all AVR Controllers Parallel and serial High-Voltage-Programming Small and easy layout with only a few parts STK500 protocol Schematics and board layout available   Introduction The project started as an enhancement of Martin Thomas  Evertool project. He has rebuilt the AVRISP and JTAG adapter with only a few parts. Unfortunately they […]

Inside the X In March 2000, rumors that Microsoft was developing a game console were confirmed when Gates took the wraps off the Xbox demo unit. In January 2001, the demo model, a big chrome “X” with a green-glowing light in the middle, was replaced by a more traditional black box. As analysts predicted, the […]

Connected to a burglar alarm or fire alarm in the event of making phone calls playing voice messages. Controlled via DTMF actuators can operate on the spot. In recent years we have introduced several telecontrols based on the SIM900 GSM module. We released schematics and code for a gate opener (that activates when receiveing a […]

GSM, DCS, PCS, UMTS, 434/868 MHz, GPS, TETRA and many other signals are no problem for small ceramic antennas from company 2J. Among products from company 2J, which can be found in our stable stock offer, we recently incorporated miniature ceramic SMT antennas enabling to create miniature closed devices without any external antennas, connectors, cables, […]

Introduction The WhereAVR is a small, lightweight, low-power, and low-cost APRS tracker with a full compliment of analog and digital I/O, as well as the ability to decode ax.25 packets. This allows for the reception of remote commands without the need for a “real” TNC. It is designed to hook directly to the speaker and […]

Long checkout lines at the grocery store are one of the biggest complaints about the shopping experience. Soon, these lines could disappear when the ubiquitous Universal Product Code (UPC) bar code is replaced by smart labels, also called radio frequency identification (RFID) tags. RFID tags are intelligent bar codes that can talk to a networked […]

Microchip Technology Inc., announced the MCP1755 and MCP1755S family of CMOS Low-Dropout (LDO) voltage regulators.  These LDOs have an input voltage range of 3.6-16V and deliver an output current of 300 mA at output voltages of 1.8-5.5V, while consuming only 68 µA of quiescent current (typical).  Additionally, the LDOs have a shutdown pin, enabling them […]

A few years ago I set about trying to design a very cheap and simple way to superimpose flight data on live video being transmitted over amateur television. Specifically, the data would include things like Latitude, Longitute, and Altitude, among other text including an identifier like my callsign. Before I go on, I want to […]