This document is not a tutorial on how to use EAGLE, although it’ll probably be somewhat useful in that role. It’s more about how to configure and customize an Eagle installation to better suit the hobbyist. Cadsoft is a German company that is a veritable mecca of software distribution enlightenment. In addition to the reasonably-priced [...]

This is one of the most simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build yourself. Source: SQ8CBY

This is a simple how to make your own personalised LED Dot-Matrix display. I will be adding the complete program with an explaination to light the LEDs with. It’s also rather hackable, you can change it to suit yourself. Source: pinski1

This is a very simple IR light dimmer that you will wish to have sooner or later, especially those who are lazy enough to get up and turn off the lights. There are two versions of PCB for two sizes of capacitors: 32.5 x 26.5mm and 28.5 x 27mm. Dimmer is connected to existing home [...]

Quiz type game shows are increasingly becomig popular on television these days. This Indicator is powered by 12V.

This incredibly simple thermometer plugs on any free serial port. Does not make use of any programmable components as microcontrollers. It gives temperature readings accurate to 0.5°C with no calibration. It’s cheap, so I’ve put one on any PC I use. And it’s soooo nice to have the temperature shown on the Windows taskbar, that [...]

A Scrolling Display with RF connection to a PC Source: Mike Zoran’s Home Page

ESR Meter: Schema Source: elektronicastynus

This project shows the creation of a large array of UV LEDs. They are used to expose a presensititised blank circuit board. Another common method is to use UV Tubes. He used to make the isolation box: 54 UV leds buyed from E-bay for about 15 $ 18 resistors 68ohms, 1/4Watt for 0,60 $ 1 [...]

This RGB light I designed and built a while ago. A large spectrum of coloured light can be made mixing light from bulbs coloured in red, green and blue. So, this one is not based on LEDs but it’s based on 3×60W 220/110Vac light bulbs. Also, it has a remote controller to change intensity of [...]

This is a 8 channel RF remote control project. The transmitter powered by 5V.the RF module I used had long start-up and power down period after receiving a high pulse. To counter all of this I kept the receiver in constant standby mode, but sending a information all the time. That way the noise is [...]