 | | RE: ABB irb340 PickMaster
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(...) Iain, This looks like a perfect opportunity to try using the servo circuit I designed! If I use some of the heavier duty servos I have in my stash, it could probably go direct drive. Each servo has a 180 degree range of motion, which might be (...) (24 years ago, 31-Jan-01, to lugnet.robotics)
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| | Saw RCX brick at Goodwill
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Hey all, i'm a casual follower of the list and only hit the leggos once in a while with my three yr old. But this weekend was in Goodwill and saw a box, blue lightening bolts, etc...(can't remember what product name was on it....argh..maybe (...) (24 years ago, 31-Jan-01, to lugnet.robotics)
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| | Re: Saw RCX brick at Goodwill
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I need more information to help you. Where exactly is this Goodwill located, and what are their business hours? Regards, Amnon (...) (24 years ago, 31-Jan-01, to lugnet.robotics)
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| | Re: Saw RCX brick at Goodwill
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(...) It doesn't matter if the brick is dead; You can call up lego and say "Hey, my brick is dead!" and they'll send you another; They may or may not ask for the old one back. (24 years ago, 31-Jan-01, to lugnet.robotics)
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| | Re: Saw RCX brick at Goodwill
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Well, to save you worrying, why not just go buy it for $30 and I'll send you the $30 + cost of postage and you can forward it to me. I'm sure I could get $30 value out of it. I don't think the average 3 year old would have a lot of use for it (...) (24 years ago, 31-Jan-01, to lugnet.robotics)
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| | Re: Saw RCX brick at Goodwill
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(...) Worse than that - Lego represents a choking hazard to 3yr olds - you can't possibly use it! Duplo for you for another year or two! ...I'll give you $35. :-) (24 years ago, 31-Jan-01, to lugnet.robotics)
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| | Re: ABB irb340 PickMaster
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"Ralph Hempel" <rhempel@bmts.com> wrote in message news:NEBBIJADEJHLFJD...mts.com... (...) Ralph, I'd love to try using servos sometime; but until I can find a practical way to get more than two positions, I think I'm going to have to stick to using (...) (24 years ago, 31-Jan-01, to lugnet.robotics)
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| | Re: ABB irb340 PickMaster
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(...) The problem is that servo's are driven by signals that are considerably narrower than the 1/100th second resolution timers that the Lego firmware provides. They use pulse-width modulation - so the width of the pulse determines the position of (...) (24 years ago, 1-Feb-01, to lugnet.robotics)
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| | Re: ABB irb340 PickMaster
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"Steve Baker" <lego-robotics@crynwr.com> wrote in message news:3A78DBA9.F3C3D2...ail.net... (...) way (...) using (...) narrower (...) They (...) position (...) new (...) a (...) pulse (...) that. (...) something (...) hardware (...) Well, (...) (24 years ago, 1-Feb-01, to lugnet.robotics)
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| | RE: ABB irb340 PickMaster
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(...) The pbForth language has servo driving words built-in to the current release. They allow at least 128 steps of resolution for driving servos. Combined with the dead-simple circuit on my web-page, it makes driving servos very easy... (URL) (...) (24 years ago, 1-Feb-01, to lugnet.robotics)
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| | RCX 2.0's tower has a USB port
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Or at least I hope it does... Does anyone have a good USB to serial adaptor that actually works well for my RCX 1.0? -- Richard Clemens clemens@wvwc.edu (24 years ago, 1-Feb-01, to lugnet.robotics)
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| | Re: RCX 2.0's tower has a USB port
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on 2/1/2001 3:45 PM, Richard Clemens at clemens@wvwc.edu blathered on and on about: (...) I assume from the USB reference that you want to use the IR tower with a USB Mac. Short answer: Yes, you can. I use the IR tower to transmit MacNQC programs to (...) (24 years ago, 3-Feb-01, to lugnet.robotics)
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| | Re: RCX 2.0's tower has a USB port
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(...) I just got the Keyspan USB->PDA adapter. It works great on my iBook using MacNQC with an RCX 1.0 (using 2.0 firmware). Cheers, Kevin (24 years ago, 4-Feb-01, to lugnet.robotics)
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