About: Ibrar Ayyub

(Phys.org)—Quadrotors that can not only successfully fly in the air but can also roll along on the ground represent the kind of exercise that moves researchers at the Robotics Lab at Illinois Institute of Technology (IIT), which is part of the Mechanical, Materials, and Aerospace Engineering Department. Engineers there have developed a vehicle that indeed can move on land and air.

photo credit: myropcb.com I decided to order a prototype PCB for my latest project in a professional fabrication company but i could’ t decide if i should order it in a company in Europe or Asia. I am located in Europe and I wanted fast and quality service so it seemed that ordering from Europe will be the best choice.

Bill details how a microwave oven heats food. He describes how the microwave vacuum tube, called a magnetron, generates radio frequencies that cause the water in food to rotate back and forth. He shows the standing wave inside the oven, and notes how you can measure the wavelength with melted cheese. He concludes by describing […]

RFID modules SL102 and SL500A are readily usable and provide many useful functions. Similarly like in other segments of electronics, even at RFID you have a possibility to assemble a target device from components themselves, from modules, or to use a complete ready-made module, which is pluggable to a PC, often already with a SW included.

This 330 MHz remote control sends timed sequences of control pulses to accomplish complicated tasks. You can probably tell that I used a lot of solder flux on this board. Lots of flux not only helps the solder wet to the copper, but it also greatly reduces solder bridges. You can probably tell that I […]

A serial interface and bias supply for the Seiko-Epson G1216N000 using an AT90S2313 because there just aren’t enough applications examples for this display on the web. Download Assembler source code I was looking for an LCD display that I could use to display waveforms on the workbench. The selection criteria for the display module itself […]

The 10k potentiometer, just above the ISP connector near the lower middle of the board,is used to adjust the display contrast according to your vertical viewing angle. DOWNLOADS ATTINY2313/AT90S2313 AVRStudio assembler source, LDCbutons040904Ca.htm ATTINY2313/AT90S2313 AVRStudio assembler source, UPDATED FOR COMPATIBILITY WITH NEWER VERSIONS OF THE ASSEMBLER, LDCbutons040904C_updated_a.htm Truly LCD driver include file, 2x16lcdinc.htm tlcd309Ba.htm AT90S8515/ATMega8515 […]

As simple as it gets and still works This LED flasher occurred to me while reading about negative resistance in transistors. It was reported that Leona Esaki, who was at Sony at the time, had been surprised to see a negative resistance region while investigating production defects in transistors which lead to his thesis work […]

A circuit that drives a red LED from a 1.5 volt battery and simulates an incandescent light. Duty cycle can be changed by selecting resistor values. Photo 1. This printed circuit board is 3 cm long. The first prototype was made with through hole parts. This is a single sided surface mount board with one […]

Finally, white LED’s are bright enough to use in a practical stroboscope. This circuit can operate as a bench-top stroboscope that, in conjunction with an oscilloscope or frequency meter and bench top power supply can accurately measure rotational speeds, or it can be operated hand-held from a single 9V battery, using a marked scale to […]