Thomas Pfeifer does something new and amazing every day. This time he demonstrates how simple digital clock or LED diode can be powered by using batteries made of few potatoes and two different types of metal (iron and coper). Demonstration shows that such battery made from single potato generates 0.848V voltage and is able to [...]

If you are just starting to take an interest in to electronics, this is good things to get to know what type of prototyping boards can be used. There can be four types of prototype boards:

Solderless breadboard- where connections are made by using jumpers;

Soldered protoboard – uses soldered jumpers and drilled holes;

Wire wrap boards – [...]

As many of us know, that computer processor speed is limited because of transistor limits. But there is fourth generation transistor invented which is going to change todays technologies significantly.
Specialists from the University of Rochester declared about the creation of ballistic transistor - device, which must become the instrument of new generation.
Instead of improving [...]

I faced this article when I was looking for simple solution how to increase the output of my integrated sound card of my PC. I don’t know why, but the sound level of it decreased so I can’t normally listen with my headphones. So this article is about how to increase the power of your [...]

Every time you start your project one of the most important things is to thinking about what electronic components you will choose. There might be a series of questions you might have to answer for yourself. Lets say you will construct some robotic or other sensor related system based on microcontroller. Then questions might be [...]

The guy so called bunnie made interesting project by modifying the flat scanner. He managed to enhance watermarks by using blue LED’s instead white ones. He built a bar of of surface mount LED’s and placed it instead of white led bar.

Using such scanner watermarks become visible to the naked eye. Read more at www.bunniestudios.com

There are two types of RFID devices: Active and Passive. Active devices have power source built in which supplies the transmitter. The transmitter is triggered by sending the signal to RFID device. These devices have their own code and can transmit signal in desired time intervals. Active RFID devices are good in defining locations of [...]

Simply talking surface mounting is a soldering technology where component is soldered directly to a series of solder pads called a footprint. It is different soldering technology from through hole, where component leads are inserted into holes of the board. Footprint is a series of pads that conform to the lead layout of packages of [...]

Intel 8-bit Hex File Format is the most common hex file format used in the world as far as I know. There is also Motorola Hex file format and maybe other. Creating applications with AVR-GCC we usually select ihex output file format what means Intel hex file format. Lets go through it and see whats [...]

This is pretty old standard but stil widely used in embedded systems. Using RS232 interface standard the ata is sent bit by bit. Usually first comes LSB. Receiver receives data by knowing the position of each data piece and delay. In order to ensure the quality of data transmission, we need to control the start [...]