After a 2 month detailed research and analysis of Pakistani Market and Student's demand, today we finally ordered the products from SparkFun Electronics. Following is the list items which will be readily available and can be ordered by you from all over Pakistan. Complete details of the policies and delivery system will be published later along with the launch on CEShop. Continue reading

The post states the formats used for numbering the transistors, diodes and other semiconductor devices. It will make easy to identify the device by its model number. We have been using so many semiconductor devices and most of the times don't know what there serial numbers really mean. Mainly there are 2 numbering standards used; European based Pro-Electron System (for eg 1N4001, 2N2222) American based JEDEC System (BC546, BC547) Continue reading

This post describes how you can connect a real-world device with virtual-world of Proteus. The usage possibilities are unlimites and hence it breaks the unwanted-barrier between Proteus and Real World. COM Port Physical Interface Model which enables the "physical" serial port of your PC to available to simulation within Proteus. With it you can connect any of the "virtual" component found in Proteus with your PC Serial port. In other word this model connects your physical world with the Proteus-Virtual-World :) Continue reading

Long exposure light-drawing or “light-painting photography has become pretty popular lately. We see images pop up all the time that look pretty cool. Most of the time people do it by lights in their hand and setup camera onto long exposure. But this project shows what happens if an engineer gets into light-painting. Nils Völker wasn’t feeling very artistic so he made himself a robot. With light at is top the robots makes pattern which are captured on long-exposure. Of course the patterns are pre-defined which can be changed through programming. Continue reading

The project allows an easy transfer of hex programs to most Atmel AVR microcontrollers without the need for high cost and constraint time. Continue reading

How often do you change the batteries in your television remote control? Yeah, basically never. But that’s a tribute to how efficient the device is and not a reason to overlook this development. NEC is showing off a remote control that uses no batteries. Power is generated using the piezo effect that occurs when a button is pushed. That is to say, when a crystal is compressed it emits a tiny bit of electricity which is harnessed and used to power this device. This is the same principle that is used in the electricity producing sidewalks tested in Japan. It’s pretty phenomenal that they can run the device using this method. Right now there’s only a handful of buttons but we’re sure there’ll be advances in the technology. There’s a ton of use for this if it can be miniaturized. It is using radio frequency instead of infrared, making it a useful development in wireless doorbells, garage door openers, key-less entry fobs for your car, and many more applications. Continue reading

An introductory post on how to use serial communication in PIC Micrcontrollers to send data to PC. What comes first in your mind when you listen serial communication ? Yes, how to send data in series. All this time you have been working single bits, turning on and off. Well serial communication is nothing more than on and off, but the only difference is that it has certain rules and timings which make it the reliable and accurate communication protocol among all. Continue reading

A very comprehensive tutorial explaining each and every step for making a digital thermometer. PIC16F876 is used along with LM35 temperature sensor. After reading and converting the values into temperature in Celsius, it is sent to PC over RS232. Continue reading

The post demonstrated how to change the local path of Users folder from default to location to nay other volume. One need to do this to be at safe side when due to any reason he had format the windows. Without worrying about Documents, Profiles, Downloads and items and Desktop. Continue reading

The post shows how to use internal interrupt of AVR to read Temperature from LM35. The best thing about using Interrupt is that it is independent of other coding being processed. Interrupts are on high priority and whenever they occur, the function being processed is paused and the ISR (Interrupt Service Routine) is processed. And afterward the previous function is resumed. Interrupts help to code functions which are required in urgent states such as triggering an alarm or stopping an actuator. Continue reading