16 October, 2015

Fuel economy in a car: Charging battery the Arduino way: 2nd and last part

›
26650 LifePo4 A123 batteries (2.3 Ah) After analyzing the advantages and disadvantages of changing the car battery for a homemade LiFeP...
04 September, 2015

Home Automation: How to activate a relay via USB on Windows to control devices (blinds, lights, etc)

›
Although it is most  economic and versatile use Arduino as a programmable electronic board, so we avoid the known unreliability of Wind...
22 August, 2015

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

›
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

›
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

›
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

›
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

›
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

›
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

›
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

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