Hi all,
we visited you for your new years party and yesterday evening nadka and me from Stuttgart/shackspace brought you a box of club mate cola.
When trying to get another box of Club Mate unfortunately our car wasn't where we left it and so we learned the hard way about blue marked parking spaces.
Anyways we'll drop off the box tonight.
Last time me and makefu were amazed by how good the ledbar turned out and built some/are in the process of building 50 linkable rgbboxes. https://github.com/excogitation/rgbcubes Maybe someone from the ledbar hackers is at brmlab later to talk to?
Also I bring another little project if someone wants to play with PID loops in an analog way. https://picasaweb.google.com/m/viewAlbum?uname=115792422633543473919&aid...
Last time we went into the lab downstairs and whished there was a radiation sign on the door ... maybe that could happen sometime - so you can educate people beforehand / give them a chance not to go in ;-)
Anyways it coused me to start a fundraiser at our hackerspace to take part in radiation detection+online mapping and I then found a really cheap solution. Two kits from http://radioactiveathome.org/map/ are being built (total cost of one ~30€). Maybe taking part would also be interesting for some of you.
Best Regards and see you in a bit, exco
Hi!
On Fri, Feb 13, 2015 at 06:38:03PM +0100, Christian Stöveken wrote:
Last time me and makefu were amazed by how good the ledbar turned out and built some/are in the process of building 50 linkable rgbboxes. https://github.com/excogitation/rgbcubes Maybe someone from the ledbar hackers is at brmlab later to talk to?
Ooh, that's pretty! Great work there. We had some similar ideas in the early stages of the project (converting it to a kit form and having a build-at-home version), unfortunately we never had the time and dedication to pull it through. BTW, is this your target brightness or do you plan to use some higher-luminosity LEDs for next iterations?
Note that when you have many high-current LEDs connected to the same PSU and shared bus and the lines are several meters long, you *may* start hitting AC interference etc. issues if you didn't design your bus properly; that happenned to us in the first version of ledbar. Just something to keep in mind as you scale things up.
Making the cubes individually controlled and IOT is also an excellent idea - it wasn't a good fit for ledbar, but two guys at our hackerspace (TomSuch & da3m0n22) built essentially a platform for exactly that, including an Android control app etc. Maybe you catch them in the space tonight, or you can ask others for "MoodyLight" and there likely are some prototypes lying around in the hackerspace. It might be nice to join forces.
Enjoy Prague,
-
Christian Stöveken -
Petr Baudis