 | | Re: IR wall detection
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Keith, Try an LM567. It's a tone decoder with PLL and VCO. Basically set the internal freq. of the 567 any where between .01 Hz up to I think 500 kHz. Feed a signal into the 567 and if the freq's match up, the 567's output goes low. I've been (...) (28 years ago, 16-Jan-97, to lugnet.robotics.handyboard)
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| | Re: dual servos
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There may be two separable issues in your experiment: 1. "twitching" when the control value isn't changing. this should not happen. 2. twitching because of flakiness in the pot reading. this would not surprise me at all. if the A to D reading on the (...) (28 years ago, 16-Jan-97, to lugnet.robotics.handyboard)
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| | Re: unsubscribe
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Please unsubscribe "vie100@psu.edu" from the mailing list. (...) (28 years ago, 16-Jan-97, to lugnet.robotics.handyboard)
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| | RE: LM629 and "quadriture incremental" encoders
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The last time I priced these chips they were $249.00 each qty 1. (a bit expensive for my robots, but I've used them and they are cool) --Chuck ---...--- From: James Lewis[SMTP:jlewis@nomadics.com] Sent: Wednesday, January 15, 1997 5:10 PM To: (...) (28 years ago, 16-Jan-97, to lugnet.robotics.handyboard)
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| | LM629 and "quadriture incremental" encoders
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I was reading through the mail archive last night and was struck by a message someone sent regarding the LM629 motor controller. It seems as though this is a really cool chip! I requested some samples and they are on the way. My question is this, I (...) (28 years ago, 16-Jan-97, to lugnet.robotics.handyboard)
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