Ever plugged in too much power into your electronic equipment? Or for some other reason seen smoke come out of it? A friend of Umeå Hackerspace had a Casio PT-1 that he apparently had tried to use with a bit too much power in the supply. Fortunately he hadn't caused …

A Class-D amplifier made with a LM324 Op-amp, a 555 timer and a N-channel FET.

http://www.youtube.com/watch?v=HJhOOJ4qTOc

I have no idea how something this simple and cheap can sound so good, and even without any kind of filter.

Time to test out som unconventional "speakers …

Arduinos are truly universal, this one is playing some fine music, almost makes you feel like dancing, doesn't it?

http://www.youtube.com/watch?v=fX9eUR5EXOA

Used code and schematic from this site:
http://interface.khm.de/index.php/lab/experiments/theremin-as-a-capacitive-sensing-device/
Arrrr...duino!

This afternoon, 2011-01-19 at 19.19 CET, Umeå Hackerspace will have its constitutional meeting. This means that it will become a registered organisation that can not only sign deals and organize events but also manage an economy and democratically use the money for whichever cause the members see fit.

The …

[caption id="attachment_182" align="alignright" width="300" caption="MMN-o and pettter. Photo: Mikael Hansson/Infotech Umeå"][/caption]

With a Grill-bit delegation having visited 27c3, meeting hackers from all over the world, the local technology internet magazine InfoTech Umeå wanted an interview.

The article produced is in Swedish and rather lightly …

Arcade machines are a thing of the past, you might think. Big, clunky and expensive with a just about as lifelike experience as your old 15" CRT, except for the actual controls. And those only interest people with some sort of nostalgic feeling to the golden arcade days.

[caption id …

Sunday evening and nothing to do? Well, at least this evening there were people in the space and equipment to play with. For example a random wind speed monitoring device that we examined and found out that it's basically just a dumb rotary sensor that triggers an interrupt on your …

Last night we had a great hacking evening with lasers and security-related wireless transmissions. What more can one ask for?

OpenLase is a sort-of framework with several stand-alone tools which are combined to produce real-time laser graphics with hobbyist-grade components. One of Grill-bit's hackers hast started fiddling with this, getting …

[caption id="attachment_157" align="alignright" width="260" caption="Chaos Communication Congress opens doors"][/caption]

Umeå Hackerspace skickar en delegation till Chaos Communication Congress, 27-30 december. Kongressen är en mötesplats för den internationella hackerscenen. På plats kommer de att ansluta till andra nätaktivister från "oorganisationen" Telecomix, som verkar för ett öppet …

[caption id="attachment_150" align="alignright" width="300" caption="Another sample ticket. Don't bother writing it down, it's in the table below."][/caption]

We're currently trying to reverse engineer the codes for our local bus SMS tickets. There's some information in Swedish at MMN-o's blog (raw data, number description). Here's a …

When doing your dumpster diving tours/raids, it's not unusual to find monitors lying around. Fortunately enough those huge old CRTs are mostly long gone as people want to use their desktop space to store other meaningless crap such as papers and forgotten bits of food. And coffee mugs. So …

Baka grinig pepparkakskaka samt halvgräddad citronkaka som mekfika:

Lite dödssvetsning med en svetstransformator som är alldelens för stark för spacets elförsörjning som numera är delvis ur funktion:

http://www.youtube.com/watch?v=M2E7iiFoIDM

Fixande av cykel som rostar bort.

Cykel i Spacet. Mycket smidigt.

Litet hål som vuxit sig stort och rostigt och mycket manligt. Samt den lilla fräscha ersättaren.

Det fanns även tid över för att montera fast förgreningsdosan fint i bordet så man slipper leta den och böka med dess kabel …

Spacets funktionsgenerator får ny nätkabel och allmän inspektion.

Gedigen sak med lagom långt mellan komponenterna:

Stämningsfullt och vackert:

Två kvällar, två tesla.
Tisdagkvällen ägnades åt båda coilarna, den enda som genererade något var Frink's.
Onsdagkvällen fick kng's en revansh om än en blygsam sådan.
Lite bilder och filmer såklart, annars har det ju inte hänt :P

Sen tre filmklipp från kng's coil:

[youtube 6AItC9xhiQQ]
[youtube -Zp7YsRezqY]
[youtube WdyTKrrmj3g …