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46  Using Arduino / LEDs and Multiplexing / Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver on: January 17, 2013, 02:46:02 am
I know about the TSSOP, but it's actually way too big for my application.
47  Using Arduino / LEDs and Multiplexing / Re: MegaBrite RGB on: January 17, 2013, 02:43:52 am
Me. They're...fun!
48  Using Arduino / LEDs and Multiplexing / Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver on: January 14, 2013, 10:23:28 pm
Oh weird, I didn't notice that "binarygod" actually deleted everything. That's really antisocial.
49  Using Arduino / LEDs and Multiplexing / Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver on: January 14, 2013, 10:21:49 pm
Short for PCB and Assembly shop.
50  Using Arduino / LEDs and Multiplexing / Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver on: January 14, 2013, 10:07:10 pm
I am very slowly designing a 4-layer board with some AS1130's. The biggest pain has been finding out that my usual cheap PCBAs don't want to do 0.5mm BGA/WLCSP.
51  Using Arduino / LEDs and Multiplexing / Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver on: January 12, 2013, 05:44:13 pm
Probably accidentally got it working right, and dropped this thread like a hot potato.
52  Using Arduino / LEDs and Multiplexing / Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver on: January 06, 2013, 12:32:30 am
I can and will be as patient as Hexadec has been, but only when I'm getting paid for it.
53  Using Arduino / Project Guidance / Re: Looking to assemble a shiftbrite array with arduino on: December 27, 2012, 04:45:38 am
Any Ethernet solution for the Arduino will use the hardware SPI pins. This causes a problem with the standard ShiftBrite shields, as they expect to use those pins as well. You can use an Arduino Ethernet, or an Ethernet Shield, and use software SPI on some other pins for the ShiftBrites.

Alternately, you could put a much cheaper/smaller Arduino in the lamp post, like an Arduweeny or Arduino Pro Mini. This is a more soldering-based approach. I'd use the CAT5 to carry RS485 on one pair, using SN65176 chips on both ends. You can use an Arduino in the house, or a PC with a serial/usb/RS485 converter to control the remote Arduino. This is more work, but potentially cheaper than an Arduino Ethernet with PoE.
54  Community / Exhibition / Gallery / Re: Countdown to Maker Faire on a Betabrite LED sign on: December 10, 2012, 11:25:05 pm
All the code to control the Betabrite sign is right in the code I posted here.
55  Using Arduino / LEDs and Multiplexing / Re: AS1130 First attempt - working on: December 05, 2012, 09:30:45 pm
There is no hidden secret or trick to writing successful code from scratch. It is all hard work and research. You don't learn how to build a house by walking up to a construction crew, saying "Hey, I'm building a house too!" and asking them how to hold a hammer while they're working, and you don't own a hammer.
56  Development / Other Hardware Development / Re: Teensy++ and centepede shield on: October 28, 2012, 09:05:46 pm
That's correct. You can string the shields together with a few wires, connect the SDA and SCL in parallel. I don't have a Teensy to test, so there is no Centipede Library for it...but you should be able to get it working quickly, the library is merely convenient.

A chess board is also the perfect layout for a matrix arrangement...you may not really need that many channels. The reed switches could easily be read with 16 pins.
57  Using Arduino / Project Guidance / Re: Long Duration Timer for Egg Incubator on: October 24, 2012, 01:18:12 am
An external, battery-backed RTC of some sort would be a good idea, though extreme accuracy isn't needed. The main reason is that if the power drops out for a couple minutes or someone trips over a power cord, the Arduino will lose track of whatever time has passed. 21 days is a long time to assume that something will have 100% reliable power, especially when so many lives are on the line  smiley-lol
58  Using Arduino / LEDs and Multiplexing / Re: Solderless LED Matrix? on: October 09, 2012, 09:23:50 pm
That is a ridiculous price for the MAX7219. Well, the normal price is the ridiculous one...but $1.25 is unheard of. Somehow I think that can't last long.
59  Using Arduino / Project Guidance / Re: Microphone in to headphone out on: August 02, 2012, 02:05:10 am
Solved problem: http://www.amazon.com/Bionicear-G2-Personal-Sound-Amplifier/dp/B005D8NNLM/ref=sr_1_2?ie=UTF8&qid=1343890950&sr=8-2&keywords=sound+amplifier

...And many other available, though this one seems least sucky.
60  Using Arduino / Project Guidance / Re: RGB LED spheres controlled via MAX or OSC device on: July 30, 2012, 12:28:12 pm
How big are the spheres, how far apart are they, and how bright do they need to be?

If, for example, you are suspending these from the ceiling so they're mostly viewed from the sides and bottom, I find that wide angle LEDs at one side of the sphere light it up pretty well.

If these are more than a couple feet apart, any logic-level communication will be problematic. You would likely want to have a central controller with just the LED power wires leading to each sphere.
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