Brmlab May 2011

brmlab@brmlab.cz

29 participants
57 discussions

Streaming z brmlabu
by Petr Baudis 04 May '11

04 May '11

Ahoj! Jenda vymyslel a pripravil moznost snadneho streamovani prednasek, akci atd. z brmlabu. Ja jsem vcera prepinani streamingu dopsal do brmd, takze nyni jiz uplne kazdy clen muze streamovat dle potreby! Postup: * Hlasite upozornim, ze jdu streamovat. * Vezmu kameru oprenou na stativu u brmbaru a umistim ji, kam chci. * Zapnu kameru (otoci se takovy stribrny cudlik z polohy "OFF" do polohy "AUTO)". * Prepnu na Club Mate panelu bily prepinac. Rozsviti se oranzova LEDka a streamuje se. Notifikace o streamovani vcetne URL se objevi na IRC a odkaz na stream najdete i na http://nat.brmlab.cz/brmd/. K vypnuti streamovani aplikujte inverzni postup. Diky Jendovi i ostatnim, kteri mu pomahali! Dalsi krok bude nasetupovani restreamovaciho serveru na tluste lince a podobne snadna moznost nahravani prednasek nebo treba jen demicek projektu. Ale vseho docasu. :-) Happy hacking, -- Petr "Pasky" Baudis UNIX is user friendly, it's just picky about who its friends are.

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Fwd: [edubrm] [GGHC] brmlab summary: edubrm
by Pavel Ruzicka 04 May '11

04 May '11

-------- Original Message -------- Date: Wed, 04 May 2011 06:28:01 +0200 From: Pavol Rusnak <stick(a)gk2.sk> Hi all! See our summary blogpost at: http://www.element14.com/community/people/brmlab/blog/2011/05/04/challenge-… Project name: EDUBRM Summary: Aim of our project was to create an open platform for teaching electronic principles. Our target audience were students of elementary and comprehensive schools interested in this field. The main idea of the project is to provide modular design. One "mother board" can be extended with a set of "shields" which are used for particular scenarios. During the challenge we created three example shields and one debug shield for our purposes. Mother board is based on ARM Cortex M3 chip (more exactly LPC 1343 from NXP Semiconductor), Direct digital synthesizer and Operational Amplifiers. This combination allows us to read 6 analog values from the shields, which can be very low, because they can be multiplied up to 32x. DDS generates frequency from 1 Hz up to 50 MHz in 1 Hz steps, which can be used for generating various signals or alternating current. The first demo shield we create illustrates the creation of electricity using a dynamo and electrodes. These are made from different metals and can be plugged into lemon or a potato. Software reads up voltage and draws a nice graph. Second shield represents a simple DC circuit with a battery, switch and a bulb. Edubrm application can detect whether battery and bulb are present and if the student has pressed the button. It also visualizes which parts of the circuit have power and which not. Third shields can visualize voltages and currents in circuits with coils and capacitors. It can also switch between AC and DC power source so student can easily understand behaviour of these electronic parts while turning the power on and off. Check the following video to get the idea how it works! http://www.youtube.com/watch?v=u662X7ndcCM We also came up with ideas for lots of shields that could be used in other fields than electronics. Sadly, we were not able to implement them in time. To give some examples: * shield with two speakers emitting the same soundwave but with different phase, student can use the microphone to find out that there's no sound in the exact middle of them, application would draw charts of signals to speakers and from the microphone (acoustics) * shield that can read various amplified biosignals, like ECG or EEG (medicine) * shield with dynamo and motor connected through gears, student can inspect the resulting voltage while changing the gear ratio (mechanics) Links: * project wikipage - http://brmlab.cz/project/edubrm * source code - http://github.com/brmlab/edubrm We'd like to thank all people involved in organization of this great challenge! -- On behalf of Hackerspace Brmlab Best Regards / S pozdravom, Pavol Rusnak <stick(a)gk2.sk> _______________________________________________ edubrm mailing list edubrm(a)brmlab.cz http://rover.ms.mff.cuni.cz/mailman/listinfo/edubrm

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Gitovy tutorial
by Petr Baudis 03 May '11

03 May '11

Ahoj! Domluvili jsme se na pristi ctvrtek (12.5.) od 20:30 na maly gitovy tutorial. Budeme se zabyvat zaklady pouzivani gitu. Budu predpokladat pouze zakladni uzivatelskou znalost Linuxu a ze vite, co znamena 'commit'. :) Happy hacking, Petr "Pasky" Baudis

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[JBoch@tvoeurope.com: [Rada] BUBENSKA 1 provozní omezení na jiřním dvoře vnitrobloku květen 2011]
by Petr Baudis 03 May '11

03 May '11

Na vedomi...

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Prohlidka prazskych kolektoru
by Petr Baudis 03 May '11

03 May '11

Ahoj! Existuje moznost exkurze do kolektoru v prazskem centru - my bysme urcite neco takoveho chteli podniknout, ale napadlo nas, ze by mohlo stat za to, zorganizovat brmlabi exkurzi: http://www.kolektory.cz/index/10_zt.html http://www.kolektory.cz/index/10_zt/10_01_trasa_c.html http://www.kolektory.cz/index/10_zt/10_01_trasa_d.html Trasa C je delsi a asi zajimavejsi, ale drazsi a narocnejsi. Pri plnem naplneni kapacity by byla cena na osobu 300-400Kc, cim mene lidi, tim drazsi. :-) Pokud byste meli o exkurzi zajem, napiste mi prosim (staci soukrome, za tyden poslu souhrn): * Pocet osob * Ktere dny byste mohli (St/Pa/So, casy viz web) * Jake nejvyssi vstupne byste byli ochotni zaplatit * Mate-li trasove preference Exkurze by se nejspis uskutecnila v druhe pulce brezna. Rozsirte prosim informaci i mezi sve zname, at sezeneme dost lidi! Happy hacking, -- Petr "Pasky" Baudis Computer science education cannot make an expert programmer any more than studying brushes and pigment can make an expert painter. --esr

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vystava v brmlabe + prosba o pomoc
by Radka Haneckova 02 May '11

02 May '11

Ahojte! Od utorka sa v brmlabe kona vystava "brmlab:~$ cat chido" - steny brmlabu na dva tyzdne zaplnia moje vytvory. Chcela by som vas pozvat na vernisaz ktora sa kona v ramci utorkoveho meetupu - viac info k vystave a vernisazi najdete na http://brmlab.cz/event/cat_chido Sucastne by som sa na vas chcela obratit s prosbou o pomoc s pripravou - tj. s vyprazdnenim stien a rozvesanim obrazkov. Bola som posledne dni chora tak sa mi trochu toci hlava a nechce sa mi spadnut zo stolicky :) Ak by sa nasiel niekto kto ma cas v pondelok vecer alebo v utorok od 15:00, potesim sa ked sa mi ozve. Happy creative hacking chido -- "It is not birth, marriage, or death, but gastrulation which is truly the most important time in your life." Lewis Wolpert

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rozlouceni + kultury
by Frantisek Apfelbeck 02 May '11

02 May '11

Zdravim ve spolek, Prave jsem dokoncil hybernaci kultur vodniho kefiru a mlecneho kefiru. Obe kultury jsou v novych mediich pri minimalni metabolicke aktivite diky nizke teplote (lednice). Kultury jsou oznaceny s instrukcemi kdy prikrmit. Jakekoliv dotazy ohledne kultur rad zodpovim ci se podivejte na https://www.noisebridge.net/wiki/Recipes_and_Manuals Dnes odjizdim z Prahy a ve ctvrtek letim do Irska, kde budu shanet zbytek financi na zrealizovani projektu Pomoc Japonsku. Doufam, ze to pujde OK neb za to rucim a citim to na "bedrech". Chci byt v Galway, tak to chci poradne roztocit v 091 labs http://091labs.com/ Budu v kontaktu a doufam, ze se s velkou casti z vas uvidim na CCC letnim kempu 9-14/8/2011. Mala perlicka, kterou zatim malo kdo vi. Na kempu budu mit na starosti kuchyni pro Hackers on the plain a jejich Neighbor vesnicku. Udelam maximum pro to, aby se toto misto stalo pravym "srdcem" food hacking celeho kempu, takze se tam urcite zajdete mrknout, bude to stat za to! Diky moc za zprijemneni meho pobytu v Praze, preju vsem vse nej a hodne uspechu v Global Hacker Challenge! S pozdravem, Frantisek PS Kombucha je spolu s jogurtem v lednici take

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Brmlab May 2011