 | | 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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| | dual servos
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Greetings all, I have been programming lately using the recently released dual servo routines. I have noticed that if I enable both servos and simply send each of them a pulse (servo_a7(or 5)_pulse=3040 for example) they respond faitfully but then (...) (28 years ago, 16-Jan-97, to lugnet.robotics.handyboard)
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| | Re: (BrainDead) servos
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Please see the Servo page, linked off of the Software Resources page: (URL) you load the drivers, and connect the servo to power, ground, and a control output. -Fred In your message you said: (...) (28 years ago, 15-Jan-97, to lugnet.robotics.handyboard)
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| | Re: (BrainDead)
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(...) there 's one little mistake here.. you do not only need the servo.c file, but also the servo.icb file...So first you have to load the servo.icb file an then the servo.c file to get the thing working... Now you can use the servo commands as (...) (28 years ago, 15-Jan-97, to lugnet.robotics.handyboard)
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| | (BrainDead)
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I'm kind of stuck, and hopefully someone can tell me what I'm doing wrong. My group and I have been working with the HB for a couple of weeks now and have progressed to the point (in programming the HB) where we've written programs utilizing muliple (...) (28 years ago, 15-Jan-97, to lugnet.robotics.handyboard)
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| | (IR sensors)
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Can some give me a suggestion as to what kind of IR sensors would be good to use in conjunction with the Handboard on a mobile robot. I remember seeing some info on Sharp IR modules...and if I'm not mistaken, the posting mentioned that these IR (...) (28 years ago, 15-Jan-97, to lugnet.robotics.handyboard)
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