 | | Collision Advoidance Emitter Circuit
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Hi All, Had anyone actually built the Infared LED emitter circuit that is on the Rug Warrior? (i.e. pg 108 of Chapter 5 of the book "Mobile Robots" by Jones and Flynn). I've looked at it and I can't for the life of me figure out how it works. Before (...) (27 years ago, 22-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Good books about electronics
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(...) Mike, I would also recommend the book: "Electronics (A Self-teaching guide)" by Harry Kybett (1986 by John Willey & Sons) ISBN 0-471-00916-4. It is a very excellent beginning text. It teaches concepts and then you self test yourself every 2-3 (...) (27 years ago, 22-Apr-97, to lugnet.robotics.handyboard)
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| | Re: GPS
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(...) Yep. Me! There weren't any major headaches involved in doing it. Feel free to ask me questions. I may have to get my source from home in order to answer them though. Curt Mills, WE7U Senior Methods Engineer/System Administrator (...) (27 years ago, 21-Apr-97, to lugnet.robotics.handyboard)
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| | Re[2]: motors
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Thanks. I tries that. I even tried to use four of them in parralel. OK, here's what I've discovered...just to let you all in on it and maybe it'll help someone in the future. I pulled the leads from the motor header and powered the motors directly (...) (27 years ago, 21-Apr-97, to lugnet.robotics.handyboard)
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| | Handyboard to Vector 2X compass
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I'm planning to hook a Vector 2X digital compass to my HandBoard. I'm looking for any code for such and interface. It should be simple SPI stuff but I've never messed with the SPI before and would rather not re-invent the wheel. I've checked the web (...) (27 years ago, 21-Apr-97, to lugnet.robotics.handyboard)
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| | Re: motors
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Mar, You might want to try attaching a small (0.1uF) capacitor to the motor leads as close as possible to the motor. Use a ceramic or monolithic ceramic capacitor. That might reduce the motor noise your sonar board sees. Also remember that even (...) (27 years ago, 21-Apr-97, to lugnet.robotics.handyboard)
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| | GPS
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Hi, I want to connect a gps-receiver which provides NMEA-0183 data to the HB. Did anyone connect a gps to the HB before? Carsten (27 years ago, 21-Apr-97, to lugnet.robotics.handyboard)
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| | Using Step-Motors
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A couple people have expressed interest in how to use step-motors with their handyboards. I have used step-motors with my miniboard, and since both the handyboard and the miniboard use two L293D chips to run the motors, I am fairly confident that (...) (27 years ago, 20-Apr-97, to lugnet.robotics.handyboard)
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| | Re: motors
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I haven't had the same poblems, but I have a theory as to your problem. There are two probabilities: 1) The motor is causing too much noise and is interfering with the sonar, or 2)The motor is giving off electrical noise (i.e. electromagnetic waves) (...) (27 years ago, 19-Apr-97, to lugnet.robotics.handyboard)
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| | motors
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Hi, I have some motor trouble. I have two motors. I have a polaroid sonar. When I run one of the motors, the sonar works. When I run the other motor, the sonar's detected distance jumps arround randomly. The randomness seems to be more at higher (...) (27 years ago, 19-Apr-97, to lugnet.robotics.handyboard)
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