Types of Batterie Management Systems (BMS); building new batteries for our equipment

Complementing the already abundant information on this blog about batteries, recycling and repair, and BMS, I will analyze the types of BMS and qualities that we can find among Chinese BMS. The main reason for the short life of batteries any type is often their poor maintenance ; either because they remain flat or that are downloaded more than convenient (both lead as Li-ion do not tolerate discharges well below a certain level). To protect the batteries (particularly lithium dangerous if overloaded or short -circuited), the " battery Management Systems " or BMS come into play to good use and long battery life.

How to Choose the BMS we need

Repairing an LCD screen: Replacing blown capacitors

The capacitors are famous for electrolytic fail when subjected to long time of use, temperature and stress, swelling and bursting the top cover where release of the electrolyte liquid inside. Many basis of old computers that had this type of capacitor plates ended up failing after 2 years, and now they are substituted for polymer electrolytic capacitors aluminum, stronger and more durable.

IMPORTANT : Before you throw a screen away because you think beyond repair, ask before budget in an electronic workshop , it may be a small thing (every day are cheaper and sometimes costs more to repair, but still not worth more than a new repair, convenient repair, you are recycling, less waste and investing in local labor).

In this case I was left a screen which two seconds to light the lamps emitting a like a very low "zzzzz" buzzing sound turned off. The sound was probably the vibration of capacitors stage transformation frequency of 50 Hz which is the AC, that being in poor condition that sound emitted.

Repair closing system from a door from an AEG Lavamat 5011 washer: The door does not open

In this post we will see how to repair the tab closing the door of a washing machine

At this AEG Lavamat 5011 stopped suddenly open the door . At first I thought it was the next piece, control door lock, but after releasing it, I checked stuck and moved as expected, so it could not be the problem.

We will have to act on the inner part (across) the closing of the door open

Video Tutorial: How to change the display to a Samsung I9003 Galaxy SCL

In this post I present my first Video-Tutorial . I will change the whole screen to a I9003touch screen which was broken by a blow, explaining step by step process.

Goes much more environmentally and economically profitable repair a mobile, especially when you still have enough value to buy a new one.

It has been recorded in a completely improvised, so it has some bugs (it cost us more edit that record). Before I recommend:

• Previously heated through the broken screen, first remove the top (leave the area of ​​buttons, more complicated, for the final). But there will be more chances that the adhesive stays on the screen and you may have to reposition the adhesive sheet as seen in the video.
• Remove the motherboard by disconnecting all connectors, before starting to remove the screen.
• I used a knife, but if you can get something sharp hard, best plastic. I do not take responsibility for cuts and wounds;).

I hope you enjoy the video as much as I do so. Comments are welcome!

Converting an owl figure on a practical table lamp using LED technology

Craft with LED: As you can see almost any object serves to build a LED lamp

Hello friends, we have seen above that the technology of LED lighting allows you to convert almost any object into a light source , which can unleash our imagination and surprise all and sundry with our creations.

This time I decided to make a very special gift to someone very special, while riding entertained me two 7W LED round (it's a type of aluminum plate on which the semiconductor diodes are used in 14 points per disc).

In a bazaar I noticed an owl by the size of their eyes and its shape well served me to do something original and useful; to be hollow could easily incorporate all the elements.

Making the lights turn on/off with two claps: easy and cheap with Arduino

The box ready with micro in the center

I recently saw how have different modes of intensity in a non-dimmable LED lamp using Arduino,this time we will build a switch operable by two claps followed, very useful to turn off lights, televisions, etc. In our room we stayed switch to desmano bed, so it occurred to me that it would be possible with a micro, build a relay be activating as we had seen so many times on TV, with two claps.

Also it can come in handy for people with disabilities , although in that case it would be better a remote control.

When at last I got with it, it occurred to me that surely someone had done it before, and bingo!one German commented how he had developed on his page , saving me hours of testing with micro.

A micro with an activatable certain volume output greatly simplifies things, so the theory is that the Arduino program simply be listening, and produced two (only two) high hits in less than 0.4 seconds , is likely they are two slaps.

3 component dupont few cables and the USB connector is all we need to prove