On Aug 10, 2014, at 4:48 PM, Ward Ramsdell <[email protected]> wrote:
> I second the WS2812B / Teensy 3.1 combination. OctoWS2811 is a great library > and it works very well. Also agree about Ray Wu on AliExpress, I've bought a > fair amount of LED strip from him and never had problems. There's a new > style available, silicone tubing filled with silicone epoxy. It flexes > nicely and seems to protect the LEDs well. It's overkill for this project, > but if you're going to reuse the strips it might be nice to have the extra > robustness. I've always wanted to try PEX tubing as a diffuser, I bit it > would work reasonably well. This is the link I used to order last time: > http://www.aliexpress.com/snapshot/6144020076.html > I have a reel of it here if you want to take a look before buying. One > thought for configurability: add a Roving Networks RN42 Bluetooth Serial > module to the Teensy. It looks and acts like a wireless UART, and would > allow you to use a tablet or phone to change the LED pattern on the fly > without having to dig into the controller. That sounds like the ticket! If I really can get 8 of these at $34 each, the whole project might just be affordable. I guess I'd also need a teensy and an octoWS adapter board, and a large enough 5v power supply … some RJ45 connectors and some Cat6 … solder … what else? So far it's looking like less than $400. I do like the bluetooth serial idea, but I wonder: with all those LEDs strung all over the place and chattering, should I worry about radio interference? Will Bluetooth be reliable, in other words? I have no idea how to size the power supply. I can't find a maximum amperage rating on the WS2812B data sheet. I would probably never drive the whole thing 100% on, except maybe for testing. I know Paul has done plenty of this stuff … Paul, what power supply would you recommend for approximately 1200 LEDS ( 8 x 5 meters x 30 lights/meter)? -mykle- _______________________________________________ dorkbotpdx-blabber mailing list [email protected] http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
