22 August, 2015

Fuel economy in a car: Charging the battery the Arduino way - Part One

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In this post  we will see what details we consider to adapt a vehicle to save fuel by switching off the alternator  when we are not int...
21 July, 2015

The Li-ion 18650 for sale on the Internet: There are more false than legitimate

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When I started acquiring Li-ion batteries 18650 back in 2012 to  restore some packs , there were still no stores in Spain that had them...
20 July, 2015

Current state of the art LED options in H4 / H1 car bulbs

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Model H4 LED high performance Tired of changing the  H4 halogen lamps of my Xsara Picasso car, I was looking for alternatives in LED , ...
18 July, 2015

DIY: Turn your bike into e-bike for yourself - Step 5/5: Final details: Active Braking, charge control and legality

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This wounded wire is my brake;) After a few months of using battery-powered bike,  I am going to comment how it feels . On the one hand ...
15 July, 2015

Changing the hard drive of a Lacie Network Space 2

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A couple of years ago I bought  this super NAS  (Network Storage) Lacie with Linux operating system, good performance and very low power ...
10 comments:
13 July, 2015

Avoid the discharge of the car battery when not used using a simple relay and interruptor

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Relay connection scheme An old Fiat Bravo was draining battery  when not used for a couple of days, and the battery had to be recharged...
2 comments:
24 June, 2015

DIY Homemade pool water solar preheating system - by Jordi

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Economic system of heating pool water This past summer Jordi from Valencia was  consulting on how to heat the pool water with economic...
17 June, 2015

Lighting by electromagnetic induction: Current best choice for high power lamps

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When it is necessary to illuminate a street, building, etc, and lots of light output is required,  induction lamps are more profitable t...
10 June, 2015

Connecting an IDE (DVD-ROM, HD, etc) unit to a motherboard without IDE port (SATAS only)

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Using an IDE-USB adapter we could "recycle" the IDE recorder In  many current motherboards like  Gigabyte GA-F2A55M-DS2 , no l...
04 June, 2015

Computer with dropbox slows: Usage Tips

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I recently repaired a computer that "slowed down" a lot to boot. It was a laptop with Celeron, quite outdated already.  What w...