 | | Re: shaft encoders for a track drive
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(...) Depending on how your tracks are constructed, if they have holes or slots that light can pass through you can use the tread directly in place of the encoder wheels. Get some detailed information on how optical encoders work, understand it and (...) (26 years ago, 16-Feb-99, to lugnet.robotics.handyboard)
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| | GREEN MASKING
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Dear Mr Fred Martin, Green masking files are available in Gerber format (pardon me if the spelling is wrong). We do not know how to open these files. Can you send us detailed instructions on how to open these files. Yours sincerely, Nitin (26 years ago, 16-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Stepper Motor
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Keith, I've succesfully connected two steppermotors from old diskdrives to the HB, one 1.8 degrees and one even 0.9 degrees/step. I found all the info I needed on the internet, and especially www.cctc.demon.co.uk...tepper.htm contains some useful (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | re: stepper motors
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I have worked with two kinds of stepper motors with the handy board. One pair was purchased from LMDC. These are Astrosyn miniangles stepper motors. These were big heavy duty stepper motors. The other pair was from old 5 1/4 inch floppy drives from (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Kent Farnsworth's MS-DOS port of pcode
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Thank you ... this is the link that I couldn't find. ftp://cherupakha.med...-c/ms-dos/ - - - Nick - - - (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: shaft encoders for a track drive
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OK, now I too have my handy board, it's italian, not just the same, but has a 68hc11, and all those other thinks that make it just quite the original one similar to this. It will be interesting to see if we will can have, a day or another, a new (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Kent Farnsworth's MS-DOS port of pcode
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Please help ... I've misplaced the link to download Kent Farnsworth's pcode source for use under DOS. TIA - - - Nick - - - (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: shaft encoders for a track drive
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Hi. We built encoders for a skid steered wheeled robot. There is a picture of it at: (URL) used an IR Led and reciever pair, and a white disk with 24 radial black lines, and had pretty good luck with the encoder, but bad luck with the info gathered. (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | shaft encoders for a track drive
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Has anybody out there constructed shaft encoders for a track driven MOBOT. If any body has I would appreciate any help you could give me. I wasn't going to use shaft encoders but I guess they are needed for many things correct? Is there anyway to (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board & V2X & sonar
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re: exp bd SPI pins: * 2 of the pins are used by the sonar and aren't separately available. * the other 2 SPI pins are at PCB holes J20 and J21. see the schem for details: (URL) you need all 4 spi pins for something, leave out the j11 sonar (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board & V2X & sonar
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(...) I am the guy who wrote the V2X code that is on the HB web site. I just got an expansion board, and am looking into v2X and sonar on the exp board right now. (...) I cannot find where there are pins for the SPI port on the expansion board. Yup, (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: GREEN MASKING
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you need a gerber viewer program, e.g., GC-PREVUE from (URL) your message you said: (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board & V2X & sonar
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Hi Fred et al. I am doing a project with a six legged robot in which I would like to use the Polaroid 6500 sonar and the V2X compass AT THE SAME TIME. Since the SPI port D is tied up by the compass, I was wondering if directly connecting the digital (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Expansion board test routine
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Hello all, Well here it is, for what it's worth. The functions are pretty obvious, it works just like the original hbtest.c that Fred wrote. To try servos other than #5, you'll have to edit the line: servo5=(16*knob()); In the test_servo() routine. (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board questions
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(...) Terry, I will send you the code. I sent it to Fred for the website but haven't heard back. I'm reluctant to post it to the list, but I will mail it to anyone who asks... Best, Duncan (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board questions
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Hi Duncan, I would like to have a copy of your hbtest.c to test the expansion board. If you could post it I bet a lot of us would use it to test. Thanks in advance Terry G. ---...--- (...) doesn't (...) which (...) the (...) the (...) height (...) I (...) (26 years ago, 15-Feb-99, to lugnet.robotics.handyboard)
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| | Serial Communication Please Help!
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Hi, I am trying to get communication working between two HBs via the RJ11 serial port. I read the FAQ on the HB web site and I have the right cable. On the trans. HB the power LED blinks which indicates it is transmitting. Also whenever I turn on (...) (26 years ago, 14-Feb-99, to lugnet.robotics.handyboard)
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| | I2C bus with the Handy board ?
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Hi! It is possible to use component with I2C bus on the Handy board ? Do you know this ? some examples : PCF8584, PCD8574, PCF8591...... I'd like to use many component with this bus. Can you help me (if it is possible) ? thanks Dperonne@aol.com (26 years ago, 14-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Stepper Motor
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(...) You can get some from old printers or scanners but I think they are rated for 24V (...) For Eurobot 97 ,some robots were using stepper motors. On Internet, there was also a guy who explained how to build a robot from a floppy drive. As far as (...) (26 years ago, 14-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Stepper Motor
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I am also trying to use steppers motors from an old floppy, if anyone has accompished this I am interested in your result and methods Keith (...) (26 years ago, 14-Feb-99, to lugnet.robotics.handyboard)
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