Subscribe
 

Exciting Electronics, Computer and Science Projects

Free Projects for Professionals and Enthusiasts. New additions every week.
Google
Electronics Infoline Web




Water Pump Relay Control

Water Pump Relay Control

By means of a Relay, employed to drive a water pump, this circuit provides automatic level control of a water reservoir or well.

Published: May 25th, 2009

Water Level Alert

Water Level Alert

This circuit will emit an intermittent beep or will flash a LED when the water contained into a recipient has reached the desired level. If a deeper sensing level is needed, the clips can be extended by means of two pieces of stiff wire.

Published: May 25th, 2009

DC-to-DC Converter

DC-to-DC Converter

This DC to DC converter is built by the author for his 48V electric bike because he wanted to plug-in some common 12V accessories, that is, his cellphone charger, or a GPS unit.

Published: May 25th, 2009

DC to DC Boost Converter

DC to DC Boost Converter

Learn how to build an efficient boost converter to provide high voltage from a lower voltage greater than 5V for several applications, most prominently to charge capacitors. The boost converter described here utilizes the Astable operation of the NE555 a timer Integrated Circuit, an IGBT, a Diode, and an Inductor coil of wire.

Published: May 25th, 2009

How to Build an Antenna

How to Build an Antenna

An antenna is an electromagnetic device that collects or emits radio waves. It consists of material that conducts electricity arranged in such a way that it is in tune with the frequency of a radio signal. Like a tuning fork in the presence of a sound of the same pitch, an antenna tuned to a particular frequency will resonate to a radio signal of the same frequency.

Published: May 25th, 2009

The Half Wave Dipole or Hertz Antenna

The Half Wave Dipole or Hertz Antenna

The dipole antenna dates back to the early RF experiments of Heinrich Hertz in the late 19th century. It consists of a conductor that is broken in the center so that RF power can be applied to it. One can think of the half wave dipole as an open circuited transmission line that has been spread out, so that the transmission line can radiate a signal into space.

Published: May 25th, 2009





Add a Rapid-Fire Button to Your Mouse Using a 555 Timer

Add a Rapid-Fire Button to Your Mouse Using a 555 Timer

Does your finger get tired easily while playing video games? Ever wish you could pwn n00bs faster than the speed of light without ever breaking a sweat? This will show you how.

Published: May 3rd, 2009

Silent Mouse The Second Encounter

Silent Mouse The Second Encounter

Neat HOW TO for keeping the mouse quieter if you have roommates . You can check recorded sound of clicking before and after. FYI, the sounds are of the Genius mouse, but the other one is dead silent too, Also the mouse buttons are now more sensitive, so you will get a few false clicks in the first couple of days, before you learn how to handle it.

Published: May 3rd, 2009

Interface MIDI Instruments to a PC Through a USB Port

Interface MIDI Instruments to a PC Through a USB Port

This Design Idea uses the FT232BM from Future Technology Devices International, a USB-to-UART interface IC that you need not program, to interface a USB port to the MIDI (musical- instrument-digital-interface) bus.

Published: May 3rd, 2009

Connecting your Computer to a Television

Connecting your Computer to a Television

It is a nasty surprise when you switch your monitor on and nothing appears on screen after a patient wait. Even though the resolution is much low, a television may help you to conduct basic procedures copying your files for example in such an emergency.

Published: May 3rd, 2009

Build Yourself a Fan Temperature Control

Build Yourself a Fan Temperature Control

Build yourself a temperature control with the following features -Temperature can be adjusted by the user. The desired temperature can be adjusted over a wide range, so the control is suitable both for regulating case temperature and CPU temperature. Fans are switched off if the temperature is low enough and several fans can be controlled with just one sensor and temperature control.

Published: April 9th, 2009

PC Output Interface

PC Output Interface

A versaile output interface that can control external devices direct from your computer. Uses freely available software and works with both windows and Linux.

Published: April 8th, 2009





Water Electrolysis

Water Electrolysis

Electricity is created when certain chemicals react together. We use chemically- made electricity to power many machines from flashlights to a watch or sometimes a car. Yes, there are cars that run on electricity! The devices that store electricity are called batteries. Electricity can also be used to produce chemical changes.

Published: November 25th, 2008

Electrolysis of Water

Electrolysis of Water

Adding some Sulfuric Acid as electrolyte will increase conductivity of water and creation of Hydrogen and Oxigen gases.

Published: November 25th, 2008

THERMO SIPHONING AND SIMPLE BATCH HEATER

THERMO SIPHONING AND SIMPLE BATCH HEATER

This simple batch heater is popular in many southern states where freezing is not a problem. It is used to preheat well water for a domestic hot water system, however it is not very efficient because of night heat loss.

Published: November 25th, 2008

Splitting Water - Electrolysis Experiment

Splitting Water - Electrolysis Experiment

Is it possible to break water? In a sense, that is what electrolysis does. Electrolysis uses electricity to split water into its two ingredients - hydrogen and oxygen. Try it out with a battery and a couple pencils.

Published: November 25th, 2008

Solar Greenhouse

Solar Greenhouse

Visible light from the sun turns into heat when it strikes the dark interior wall of the greenhouse. This heated air tends to rise and concentrate near the top of the greenhouse.

Published: November 25th, 2008

Hidden Messages - Goldenrod Pape

Hidden Messages - Goldenrod Pape

The term goldenrod is typically used to describe a color of paper - golden yellow. Certain brands of goldenrod paper contain a special dye that turns bright red in solutions that are basic like ammonia water or washing soda. The paper turns back yellow with an acid like vinegar or lemon juice.

Published: October 5th, 2008


Latest Projects from Blogs