Subject:
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Re: BlueTooth bad, Zigbee good
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 1 Jun 2005 18:48:47 GMT
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Viewed:
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1140 times
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On Wed, June 1, 2005 12:29 pm, Bruce Boyes said:
> Bluetooth is actually very poor for embedded or robotic applications. It's
> a power hog
You mean compaired to other comm devices, or compaired to a couple motors? I'd
think if you have a moble robot, the motors are going to use much more power than
anything else, right?
> BT is also overly complex for most embedded or
> robotic applications.
From what I just read, you can transmit much more data with BT. Isn't that better?
> Zigbee is much newer
And, to me, that's a problem. This is the first time I've heard of Zigbee. I know
I can go out and get a BT card for my laptop. Or, I can connect with my PDA. Is
that same hardware available for ZB? Where will ZB be in a year? In five years?
It seems to me that LEGO is NOT a technology company. They don't design or develop
new technology. They make toys. Toys that use existing technology.
Seven or eight years after the RCX came out, is it still cutting edge technology?
No. In fact, I don't think it ever was. But, it's still very cool.
I think LEGO has to leave it to people like you, Gabe, and John Barnes, to create
cutting edge stuff. They need to stick to solid, proven technology.
Steve
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Message has 2 Replies:
 | | Re: BlueTooth bad, Zigbee good
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| (...) Anytime you have something listening for signals to wake up on, it will consume power. Even at 5 or 10 mA, you'll run through a standard AA battery pretty quickly - never mind coin cells. (...) When it came out, it was pretty cutting edge - in (...) (19 years ago, 1-Jun-05, to lugnet.robotics)
| | | more on Zigbee
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| (...) Good question. I was comparting BT to other RF systems. But you won't typically run your motors at 100% load all the time, either. So typically on a Lego bot, motors will be the main power users. Add BT to a Lego Bot and the battery life will (...) (19 years ago, 1-Jun-05, to lugnet.robotics)
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Message is in Reply To:
| | BlueTooth bad, Zigbee good
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| (...) Bluetooth is actually very poor for embedded or robotic applications. It's a power hog, development tools are expensive (try $5000 minimum), true peer to peer modules are almost impossible to get unless you are a Fortune 500 company, and the (...) (19 years ago, 1-Jun-05, to lugnet.robotics)
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