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Hi there, I'm in the midst of ordering all of the parts necessary to assemble the Handy Board. However, I'm having trouble finding two parts. They are the following: Description Catalog No. Manufacturer ---...--- ---...--- ---...--- Infrared (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: FW: Serial Communications.
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Hi Fred: The Mini SSC does have a TTL-mode, but it needs inverted data i/o mode. Rather than figuring out how to do that in s/w I just used the MAX232 because it was easy and it made debugging easy into a dumb terminal program on my PC. I've had (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Servo control using Miniboard slaved to Handyboard.
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Using the Miniboard as a servo slave is a good idea, perhaps even easier is to use a BOTBoard since the BOTBoard doesn't have any motor drivers hooked up to it (no PCB modification required.) Using the MiniSSC is "ok" but for controlling multiple, (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: FW: Serial Communications.
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Mike -- Doesn't the Mini SSC have a TTL-levels mode, making the MAX232 unnecessary? Please send your serial output code, though. that would be good to distribute. -Fred In your message you said: (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | FW: Serial Communications.
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Hi John: I've used the HB to send serial command strings to a Mini SSC (for the Lynxmotion arm). I built a tiny daughterboard with a MAX232 that plugged into J6 on the board for power. Software handshaking is minimal and the MiniSSC works fine. If I (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Exp Board ETA?
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I was wondering whether there was an estimated date for the availability of the said expansion board for the HB... there is a design and schematics for a proposed Exp Board on the web site from February and I remember a thread of discussion and (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Serial Communications.
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Thanks for the info. I would like to see the code and wiring diagram if that's possible. Thanks for the help. John Hatton. (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Servo control using Miniboard slaved to Handyboard.
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A friend of mine built a radio controlled walker with six legs using twelve servos and a single BASIC stamp to control the walking. The stamp accepts the PWM from the RC receiver (using the pbasic 'pulsin' command) and outputs the pulses to all of (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Servo control using Miniboard slaved to Handyboard.
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As an addition to my earlier message I have a cheaper and possibly more versatile way of controlling the servos. I have obtained information on the Servo16 algorithm by Erik de la Iglesia which runs on a MC68HC11E1 (he mentions using the E9 but the (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Serial Communications.
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I am considering using two MiniSSC II servo controllers from Lynxmotion ((URL) to control the servos on a six leg walker using the handyboard as the CPU. The only problem is that the MiniSSC uses asynchronous serial communication. Is it possible to (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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