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FANCY LEDS
Posted on Friday, April 11, 2008   •   Category: LED

FANCY LEDS

The idea of this project came from my youngest son. He was dreaming of a small tool able to write symbols or pictures on a screen. As a graphic LCD (even bought at Crownhill :) ) was too expensive (or too easy??), the solution adopted was to pilot a matrix of Leds. This way, with only some cheap transistors, common red Leds, and a 16F628 , the dream could become reality.

     Transformerless Joule Thief
     RGB LED Driver
     USB LED Fader
     LED Bargraph Optical Tachometer
     Eliminating LED Christmas Lights Flicker
     RGB LED Strip with 12 Ultra Bright LEDs
     USB RGB LED Controller
     1.5V to 5V Converter
     RGB LED Controller with PIC12F675
     LED Lighting For Christmas
FANCY LEDS

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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