 | | RE: Is an RCX Output Amplfier, possible ?
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I think John Barnes has designed such a beast. John, maybe you can answer here? (...) (25 years ago, 8-Feb-01, to lugnet.robotics.rcx)
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| | Re: Is an RCX Output Amplfier, possible ?
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(...) Maybe you're looking for a DC motor driver like L293D (used with handyboard) from STMicroelectronics (former SGS-thomson) (URL) for all available driver this driver is suitable for use in switching applications up to 5 kHz. I don't know the (...) (25 years ago, 8-Feb-01, to lugnet.robotics.rcx)
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| | Re: Is an RCX Output Amplfier, possible ?
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Dean, Your motor multiplexer is cool, but not really what I'm after. What I need is a way to have a single output drive several motors in the same direction at the same time (IE Hook them all up in parallel.) After reading some of the posts here and (...) (25 years ago, 8-Feb-01, to lugnet.robotics.rcx)
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| | Re: Lght Sensor & Three colors?
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(...) The light sensor doesn't actually "see" colors, it only distiguishes between dark and light. Therefore I have found that using different grey scales is a good way to make distinguishable "colors". Different grey scales can be made by printing (...) (25 years ago, 7-Feb-01, to lugnet.robotics.rcx)
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| | Re: Lght Sensor & Three colors?
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(...) My card reader 2 reliably reads cards built with yellow, grey and black plates ((URL) problem in brick sorters is that slight modifications of brick positions can cause more variation in reflected light than color. Take care too of specular (...) (25 years ago, 7-Feb-01, to lugnet.robotics.rcx)
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| | Re: Is an RCX Output Amplfier, possible ?
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(...) (URL) you 6 outputs from 3. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (25 years ago, 7-Feb-01, to lugnet.robotics.rcx)
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| | Is an RCX Output Amplfier, possible ?
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I'm a not an electrical engineer and I couldn't even play one on TV : Ok. That being said, would it be possible to amplify the PWM output from the RCX to run multiple (2-4) motors off a single output connector using an external nicad battery ? Can (...) (25 years ago, 7-Feb-01, to lugnet.robotics.rcx)
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| | Re: Lght Sensor & Three colors?
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Just a thought: Couldn't one make a "rosetta stone" wheel of the various LEGO(R) colors that uses an angle sensor for indexing them and then just compare the brick being "measured" to the known bricks on the wheel ? It'd be cumbersome, but not very (...) (25 years ago, 7-Feb-01, to lugnet.robotics.rcx)
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| | Re: Mindstorms for Dummies
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Huh, I hope that "Lego Mindstorms pour Les Nuls" will be soon available in France ;-) Waiting this great happening, I will stay with my Oreilly Unofficial Guide... -- Alexandre BEC laleks@free.fr (URL) (25 years ago, 7-Feb-01, to lugnet.robotics.rcx, lugnet.books)
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| | Re: Lght Sensor & Three colors?
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Le Mardi 06 Février 2001 21:50, vous avez ?rit : (...) I think that the identification of colors can be quite accurate, assuming that we may need spend time for retrieving several sample values from the sensor, and doing thus a kind of average and (...) (25 years ago, 7-Feb-01, to lugnet.robotics.rcx)
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