
12-05-2016, 13:31
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Expert Flybot Crasher
 FRC #1885 (ILITE)
Team Role: Mentor
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Join Date: Mar 2007
Rookie Year: 2005
Location: Reston, VA
Posts: 3,657
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Re: What COTS parts would you like to see?
Quote:
Originally Posted by Bkeeneykid
Thing is, most LED strips are one of two solutions: RGB LEDs, or Addressable WS8211 or similar LEDs. I know teams that I know (I've never used LED Strips on a robot before) use the VRM's 2 Amp 5 Volt rail to power LEDs. I'd recommend one of two models: Adafruit Dotstar or Adafruit NeoPixels. These are both addressable. In reality, you don't need addressable really, but it makes controlling them easier, and sometimes it's just nicer to have control of individual sections. The main difference between the two, is that one (the Dotstar) is able to be controlled directly from the RoboRIO, albeit at a higher price. The NeoPixels are much more common, but require a special timing protocol, which must be driven by an Arduino or some other single process device. You may be able to find places that have basically identical strips to these Adafruit brands, just search for WS8211,WS8212,WS8212B, or WK6812 LED strips on Ebay or other shopping website. DotStar strips use a less common APA102 driver on the chips, so you'll find less of these types of strips on places like Ebay.
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I get it - there are options. Yet they're wide, varied, sometimes incompatible and sometimes take the power ports we'd rather put to other uses.
Or perhaps CTRE could come out with a couple more 5V ports on the VRM?
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