Posts by Ibrar Ayyub:
Build your own Function Generator
Posted on: 02 Mar 2013
The AD9837 is a low power, programmable waveform generator IC capable of producing sine, triangular, and square wave outputs. Below is a circuit design to build your own function generator. The circuit can be connected to a microcontroller through a 3 wire serial interface to set the registers in the waveform generator IC. Package it […]
How Digital Picture Frames Work
Posted on: 02 Mar 2013
Ceiva and the Computerless This picture frame is designed to enable people with no computer, no digital camera and no computer skills to benefit from some aspects of the digital boom. The idea is that a person who does have a computer, a digital camera and computer skills buys the frame, sets up the account […]
Trumeter will count it to you
Posted on: 01 Mar 2013
Ready-made counters, panel meters and time relays from company Trumeter significantly simplify development of applications where we need such modules. Trumeter modules feature one common factor – ready-made solution with very low power consumption and an excellent price/ performance ratio. Many types are battery powered, that´s why they can be easily implemented even in mobile […]
Adaptive Cancellation of Periodic 60 Hz Noise using ATmega32
Posted on: 01 Mar 2013
An active noise canceler to eliminate the 60 Hz noise found in electrical signals due to AC power-line contamination. 60 Hz noise is frustrating for anyone trying to make sensitive measurements of low voltage processes (eg. Electrocardiogram measurements), record audio from electrical instruments (eg. guitar “hum”), or use electronic systems near an AC transformer. The […]
How Security Cameras Work
Posted on: 01 Mar 2013
Types of Security Cameras Before you actually invest in a security camera system, you need to think about what you’ll be watching and what you need in order to watch it. The number of cameras you want is probably the first question that should come to mind. Are you focusing on one room in the […]
The Self-Driving Toy Car using ATmega1284 microcontroller
Posted on: 28 Feb 2013
“A car that can track its own location and calculate the direction and distance needed to get to a final destination given by user inputs.” Elevator Pitch For our final project, we built a self-driving car that takes in inputs for a final destination and drives itself from its initial location to the final destination. […]
How the PlayStation Portable Works
Posted on: 28 Feb 2013
PSP Innovations Sony practically invented the world of portable electronics when it released the Sony Walkman audio cassette player in 1979. When it came time to design a portable gaming system, Sony wasn’t content to replicate what had come before: Typical handheld game systems are a few generations behind the cutting edge of home console […]
Eagle Tip: Gateswap and Pinswap tool
Posted on: 28 Feb 2013
We route all our PCBs manually instead of using an autorouter. This can be a tedious job sometimes, but we think it gives the best results. Sometimes we’re just about to finish a PCB, when we notice a MUCH better way to route it if only a few connections could be changed. The Gateswap and […]
RFID Checkout System Design using ATmega644 microcontroller
Posted on: 27 Feb 2013
The Elevator Pitch We successfully implemented a prototype RFID checkout system that will enable consumers to instantly pay for their entire purchase upon arrival at the register, increasing customer satisfaction, reducing retailer costs, and ultimately lowering consumer prices. Summary Shopping in the present day usually involves waiting in line to get your items scanned for […]
Enhance your device with ethernet while you wait
Posted on: 27 Feb 2013
Lantronix xDirect brings a complete solution of Ethernet connectivity of a serial device to LAN – directly, without an intervention to a device. The new module – serial / LAN communication interface incorporated into a cable, brings the most simple possible solution how to connect any device with a serial interface with a DB9 connector […]
