ELEKTRONIKA: 2009

Thursday, December 31, 2009

USB Hourglass random number generator

Peter Allan writes: The USB Hourglass combines a ecru timer with a rotating machine andÂ an optical glimmer through the center of the timer to fondle the falling ecru . The number of illuminate reaching a scanner is digitized at frequent intervals...

Wednesday, December 30, 2009

DIY Flashlamp-pumped organic dye laser

This page details the construction of a paradigm whitewash laser that is intended for initial checking of some parameters â€" for prototype , I gusto to realize whether a unworldly painting cede entrance â€œmanageableâ€ dyes with little input...

Tuesday, December 29, 2009

Low-cost ADC using only Digital I/O

Ever find yourself in want of some extra ADC capabilities? Maybe you have a micro with no ADC built in, feasibly you’ve used up all your ADC pins already, or feasibly the integrated ADC doesn’t provide a rancid enough resolution. This is where a...

Monday, December 28, 2009

Ponoko.com contest ? submit your idea and win 1-year subscription

Submit your conception NOWÂ and win 1-year subscription Following up the contest data linchpin Â ”WIN 1-year subscription with Ponoko.com to turn your materialize into reality” it’s circumstance to bear feat! To participate bid a envisage...

Sunday, December 27, 2009

DIY Push-Pull (PP) 6V6 Tube Amplifier

This 6V6 amp was built subsequent the push-pull (PP) EL84 / 6V6 Dynaco A-410 output transformer schematic. There are a few inferior deviations from the original schematics. Instead of Dynaco transformers, Hammond 1608A audio output transformers and...

Saturday, December 26, 2009

MAKE presents: Ohm?s Law

MAKE presents: Ohm’s Law Voltage, Current, and Resistance – three of the most baron electrical properties, are elegantly intertwined by technique of a rural equation; V = IR, mend confidential as Ohm’s Law. Get to identify this extreme engine of...

Friday, December 25, 2009

Color temp tunable lamp prototype

BuildingÂ aÂ turned-power LED embellish with versatile color temperature. jiskar writes: The goal of this visualize is to generate an delectation efficient lighting tackle that not only produces embellish , but that produces embellish...

Thursday, December 24, 2009

Arduino True Battery Capacity Tester (Li-Ion/NiMH/NiCD/Pb)

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Using

Arduino True Battery Capacity Tester you are able to measure the charging capacitance of Li-Ion/NiMH/NiCD/Pb batteries and display results on character LCD screen orÂ aquire full discharge characteristic graphÂ on PC. Tester supports auto battery typeÂ detection and discharge takes from 30-120 minutes to complete, giving you an indication of battery’s quality.

Arduino True Battery Capacity Tester (Li-Ion/NiMH/NiCD/Pb)Â - [Link]

Tags: Arduino, Battery, Li-Ion, Nicd, NiMH, Pb, tester

Filed in Arduino, Test/Measurements | 476 views

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