Physics encyclopedia Bluetooth DTMF
8085 Microprocessor trainer kit Joystick Theory
Parallel Port Theory Stepper Motor Theory
It is an A to Z encyclopedia of physics. In this article all the terminology used in physics are covered. It is designed keeping in mind of all students, teachers and parents who find difficulty in searching the description of terms used in physics, electronics and other branches of science.
Bluetooth is the name of a wireless technology standard for connecting devices replacing cables. It uses radio frequencies in the 2.45 GHz range to transmit information over short distances of generally 33 feet (10 meters) or less. By embedding a Bluetooth chip cables that would normally carry the signal can be eliminated.
Dual Tone Multi Frequency it is a technology used for to draw a link in telephone communication. When you press a button in the telephone set keypad, a connection is made that generates a resultant signal of two tones at the same time. These two tones are taken from a row frequency and a column frequency. The resultant frequency signal is called "Dual Tone Multiple Frequency". These tones are identical and unique.
8085 Microprocessor trainer kit:
Conventionally, hardware trainer kits are used to train the students in microprocessor programming and interfacing. Here�s a virtual trainer kit for 8085 microprocessor programming (VTK-85) that operates on a Windows-powered PC. As this trainer is implemented in software, it is cheaper than conventional trainers.
The game port is a 15-pin female socket present at the back of your CPU. You can connect two joysticks at a time to a single game port. Most of the latest motherboards have an on-board game controller or you may also find it on your sound card. For those who don't have it on-board, low-cost cards are available in the market.
The original IBM PC's parallel port had a total of 12 digital outputs and five digital inputs accessed by three consecutive 8-bit ports in the processors I/O space.
Stepper motors can be put to use in a very wide range of applications. They do not comprise the entire project but form an integral part of many of them. Here are some useful applications of stepper motor.
Stepper motors are popular with digital control systems because they can be used in an open loop manner with predictable responses. Such applications include positioning heads in disk drives, adjusting fuel mixtures in automobiles, and controlling robot arms in robotics. The working principle behind stepper motors is very simple. A stepper motor consists of four coils. The pattern in which these coils are energized decides the step angle and direction of stepper motor. A stepper motor can operate in following three modes.
