 | | Handy and mini boards
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Has any one thought of the possibility of interfacing a miniboard to a handyboard? It would be a cheap way to get extra input/ motor control. Is this possible? (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | RE: diodes in h-bridge
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When the motor power is removed, the motor generates a reverse voltage. This voltage can damage the transistors, the diodes provide a conductive path back to the power supply to absorb these spikes. Convieniently, N-channel MOSFETs (and other (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | Code for Polaroid Sonar board
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Hi Kent, I just wanted to let you know that your code for the Polaroid ranging boards is fantastic! It works right out of the box! Keep up the good work. - Prabal P.S. For anyone who doesn't know what I'm talking about, Kent wrote some code to (...) (28 years ago, 21-Apr-96, to lugnet.robotics.handyboard)
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| | diodes in h-bridge
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What do the diodes across Q1-Q4 do, in Chuck's h-bridge design? I haven't figured that out yet.... (28 years ago, 20-Apr-96, to lugnet.robotics.handyboard)
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| | mailing problems fixed (already! :-)
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Ok, disregard that last message. :-) (28 years ago, 20-Apr-96, to lugnet.robotics.handyboard)
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| | list problems
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I'd just like to let everyone know that I'm currently not receiving the mailing list, (who knows why!) so could everyone _please_ mail me copies of any responses you make to my mail? The only other way I have to view them is by checking the mailing (...) (28 years ago, 20-Apr-96, to lugnet.robotics.handyboard)
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| | 2n2907 transistors
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I'm trying to build the h-bridge circuit posted on this list, and, of course, I'm having problems. It simply doesn't work. So, in my efforts to troubleshoot the thing, I'm trying to figure out how each part of the circuit is supposed to work. Which (...) (28 years ago, 20-Apr-96, to lugnet.robotics.handyboard)
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| | Re: high current motors
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This is a repost of a message I sent a few days ago. It bounced back to me, and I don't think it ever made the list... (...) (28 years ago, 19-Apr-96, to lugnet.robotics.handyboard)
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| | Re: motor voltages
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An LM317T is probably what you want. It will provide 1A continous or 1.5A with heat sink. Put a large Cap on the output to take care of peak surge requited by the motors when turned on. These temperary heavy current needs will not hurt the (...) (28 years ago, 19-Apr-96, to lugnet.robotics.handyboard)
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| | Multiple Servo control ??
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Has anyone looked into using the "Mini SSC (Serial Servo Controller)" with Handy Board? Has anyone written any code to allow HB to SSC comunications? I would be very greatful for any info on combining the HB and SSC. Thank you, Larry ***...*** Larry (...) (28 years ago, 19-Apr-96, to lugnet.robotics.handyboard)
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