 | | 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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| | hbsonar
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I am trying to run 4 sonar sensors from the HB, and I'm not sure how to go about doing this. I have a copy of the code from the ftp://cherupakha.med...ntrib/kent directory, but I'm pretty bad with assemby language and I'm not sure what I would need (...) (27 years ago, 19-Apr-97, to lugnet.robotics.handyboard)
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| | Stepper motors driver circuit and .s19 compiler...
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Hi, I heard from fred that there is someone out there who had used stepper motors with the handyboard, I am doing something which need to use stepper motors. Therefore I need your help in this area, please email me how should I go about design the (...) (27 years ago, 19-Apr-97, to lugnet.robotics.handyboard)
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| | Stepper motors driver circuit and .s19 compiler...
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Hi, I heard from fred that there is someone out there who had used stepper motors with the handyboard, I am doing something which need to use stepper motors. Therefore I need your help in this area, please email me how should I go about design the (...) (27 years ago, 19-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Stepper motors driver circuit and .s19 compiler...
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Good Day All, I also would like more info on this. If not too much trouble, could it be posted to the whole board as well? Take care... (27 years ago, 18-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Good books about electronics
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The ISBN is: 0-521-37095-7 I took the class at harvard that the book was written for. It was a good class. I learned a lot. I'm not so good with the analog stuff though... There is a student manual which is pretty helpful too. It's by Hayes and (...) (27 years ago, 18-Apr-97, to lugnet.robotics.handyboard)
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