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May 18, 2009
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Comment: I'm glad you can tolerate the "taste". A lot of Thai food is unfortunately completely w…
Comment: I like the concept, but the chosen target (cilantro) is one of the herbs that actually …
Comment: Well, the good news is that there is nothing special about making an arduino clone, no …
Comment: One full week... snigger. SCNR.Before it was transfered to a PCB, I uses a breadboard t…
Comment: Well, once you have compiled the code (for an 168 or 328) into the .hex-files, you can …
Comment: For starters, you can find an example for a single line of 8 RGB LEDs driven with a 594…
Comment: I'd use TLC5947 if possible. Very similar to 5940, but simpler to use. Needs no externa…
Comment: There is no single PWM source that needs "connecting" to the LEDs. The PWM is created b…
Comment: Hm, wouldn't there still be an awful lot of switching between the groups? Worst case: e…
Comment: It's not a shield, but an Arduino-clone of its own accord. You could abuse your Uno to …
Comment: 'Simply' is such a nice word ;-)At first glance I feel you have done this:a) remove com…
Comment: You can grab the code and _all_ design files (KiCAD + schematic + gerber files) on my b…
Comment: Yes, I know exactly the type of drivers you're talking about. Sometimes I can literally…
Comment: Civilized... hrmmm... doesn't exist ;-)And yes, I'm forced to devote most of my time to…
Comment: I usually don't. I've used it to kill an especially nasty fungus somewhere else. Well,…
Comment: This is just INSANE (in the mad brain)... If you just want the bubbling, use baking so…
Comment: About 50% of the CPU time is used for the PWM, the rest is free. Polling buttons or rea…
Comment: Visible as "visible for a camera", possible. You can have a look at the videos. Visible…
Comment: ...don't watch (stare) at the taillights... BTW, it's the same thing as staring into r…
Comment: So what exactly is German about it ? Does it rise to precisely 8,00 cm ? When I think …
Comment: Don't watch and drive ;-)
Comment: First, just let me say that this taillight is not necessarily white. It just so happens…
Comment: Hmmm. Fully assembled, small quantity and cheap. That's a tricky one. Unless you have t…
Comment: I'm working on a new prototype right now. It will have a voltage regulator built in, so…
Comment: Here's just one more.
Comment: Oh, and I forgot: both LED rings could be driven by just a single micro in single color…
Comment: Going for just a single color could still give some more brightness, if needed. You cou…
Comment: That's a good point you have there. Then all the traffic on the other side of the road…
Comment: Hmm, so maybe I should stick them to my ears instead ;-) That would be a good "lateral…
Comment: Yes, you can have any color you like. Just change the code and/or add a switch.
Comment: Hm. The "front = white / back = red" ideology seems familiar. Never heard of additional…
Comment: Eagle, hmm. I didn't use Eagle but KICAD. What to do now ? Here's a link to the gerber…
Comment: Of course it is illegal, but what isn't these days ? Strictly speaking even my head li…
Comment: Maybe 200mA peak, but the 1:8 multiplexing brings that down to about 25mA on average. E…
Comment: P1: Connects to an USB/Serial adapter for code upload or control. P4: Used for directly…
Comment: That would be counterproductive. I need single frames. I could possibly write another s…
Comment: http://www.youtube.com/watch?v=_XnL-cuM5ag /
Comment: I'll give it a shot.
Comment: For this chip it is pin 13. Depending on the data sheet it is called 'output enable' (O…
Comment: Yes exactly. The 3rd state (high resistance, all pins quasi not connected to anything)…
Comment: Aha! The type of shift register I use for this project (74HC595) can in deed source an…
Comment: That is all too true, now imagine how much such big displays may cost. Even if they onl…
Comment: The LED matrix costs 9€ + shipping + import tax (if customs intercept it), in my case t…
Comment: Hi, the c++ source code is in step 4 ( V3_x_boards_test_v3.pde.zip ). It lacks the fun…
Comment: kicadhttp://kicad.sourceforge.net/wiki/index.php/Main_Pagehttp://curiousinventor.com/gu…
Comment: Ugh, still not convinced it works :-) 40 images fit into memory with some space left f…
Comment: LOL ! I did that 2 days ago, can't you see the video ? It's in a comment on Step 9.
Comment: Still more animations ?
Comment: -- I2C using the wire library -- NewSoftSerial9 library But as monome seems to be driv…
Comment: Here's another video. The data is now stored in the chip's memory, so it's a lot faster…
Comment: Sure, but that chip is expensive. Also I think compared to the 5947 it's inferior. Alwa…
Comment: Hm. The current chip (ATmega168) has 14kb of FLASH memory that's available for the user…
Comment: Just have a look at "step 9" of this instructable, and you'll even get to see a video!
Comment: That depends on the code :-) If you transmit data pixel by pixel it'll be slow like sh…
Comment: Got an estimate release date for the LIB ?
Comment: You can form bigger displays if you want, either using normal serial or I2C. I2C allows…
Comment: DONE! It's quick and dirty and slow :-) I transfer the data LED by LED, so there's a l…
Comment: DOH! Now I have to write a script to extract RGB from this image :-)
Comment: Nope! I'm a proud user of Linux, and it runs with more than 256 colors ;-)
Comment: Definitely closer to 256 :-)
Comment: Hm. I haven't done enough of I2C to have encountered any problems so far. Also the ardu…
Comment: Yes, it's RGB. Sure you can display an image, if you can scale it down to 8x8 pixels pr…
Comment: That's without the LED matrix! The LED matrix costs about 13$, depending where you get…
Comment: I got parts for the controller for a batch size of 25. Otherwise the cost for the PCBs …
Comment: That's true. There's quite a few Chinese manufacturers that make these.
Comment: No, this is not based on Peggy / Meggy kits. I was inspired by sparkfun's LED matrix c…
Comment: Hunting for virgin posts are we ? Yes interesting, no wonder I built it :-)