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Thanks for posting the pics ... great casters! Are you using the pulleys with near the driven wheels to sense wheel rotation? - - - Nick - - - Will Bain wrote: <snip> (...) (26 years ago, 1-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Working with Legos
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(...) No problem--here it is: (URL) pretty sketchy, but I hope it helps. -- Will , , __@_/ \_@__ |/ | /__, o @_/ )\ ) ( \ (\/\\, ~~~...~~~ ' ` ~~~...~~~ ` ~~~...~~~ Wendy Parson, If you steal from one author, it's plagiarism; Will Bain, if you steal (...) (26 years ago, 1-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Working with Legos
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The LEGO purists may not approve of this, but it does work well and it makes it relatively easy to use non-LEGO components. You *do* need to be cautious about what type of glue you use. Many glues will not adhere to the LEGO plastic, others will (...) (26 years ago, 28-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Working with Legos
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I glued a couple of the thin Lego strips to the bottom of my HandyBoard to make it quick and easy to plop the board firmly onto a Lego base yet still have it easily removable. Doing this you must be certain to get the correct Lego spacing, so first (...) (26 years ago, 28-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Working with Legos
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Some of the sensors that I've used easily attach to the the plates & hlocks with holes using a set of tiny nut, bolts, and washer(s). No damage done to any of the components, and easy to change your mind about where you're going to put it. -kr (26 years ago, 28-Feb-99, to lugnet.robotics.handyboard)
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| | I have made a i2c routine for the handy board
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Hello, You want to use the i2c bus (by the SPI connector) with your handy baord ? I have made a routine to use i2c component (PCF 8574, 8591.......) with the handy board. Do you want it ? See you later. Dperonne@aol.com (26 years ago, 28-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Working with Legos
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My only tip is to stay away from cyanoacrylics. I used superglue to try to attach a motor to a brick, and it started eating away the brick. Stuck like a champ, but I had red "puss" all over the place. (...) (26 years ago, 28-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Working with Legos
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(...) That's an excellent suggestion. Thanks, Max. There are many other tips on Lego robot construction techniques in an article titled The Art of Lego Design by Fred Martin. It's available for download from the Handy Board web site: (URL) have been (...) (26 years ago, 28-Feb-99, to lugnet.robotics.handyboard)
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| | Working with Legos
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I have found a simple way to attach non-Lego motors to Lego components. I just use a band clamp as is used in plumbing to tighten the motor against two Lego axles. There is a picture and further details to show how this works at (URL) anyone else (...) (26 years ago, 28-Feb-99, to lugnet.robotics.handyboard)
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| | RE: Schematic, PCB freeware
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Thanks for the info guys, I found several good candidates among the suggestions. Clancy (...) (26 years ago, 27-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Schematic, PCB freeware
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Dear Clancy, Try looking at ftp://bode.ee.ualber.../softw/ibm Yours sincerely, Nitin (...) (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard >32Kb RAM
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(...) Actually its 64K for the HC11 cause it has a 16 Bit address bus. 16^2 = 65536 = 64K But the upper address space is used by the I/O and expansionboards. There are some little empty spaces which could be used for additional RAM. There are (...) (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Schematic, PCB freeware
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Depending on how many components you want to use, there is an evaluation version of EDWin around that works quite nicely. Very simple to do circuits and stuff like that, with a good library of bits. Yes even an autorouter. It can also do multi-layer (...) (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | Static sensitivity
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I am starting to install I.C.'s on my board and I was wondering are any of the chip's on the handy board static sensitive? which is to say if I touch it I will destroy it, without having somekind of static gaurd. ___...___ Steve Wall Sir Sandford (...) (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | Handyboard >32Kb RAM
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Hello again, Sorry I made a calculation error. If the processor is 8-bit then 32K is the maximum possible RAM. So I think no upgrade is possible. Hans Venema j.venema@wing.rug.nl (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | More than 32Kb RAM?
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Hello, Does anybody know if it is possible to build a handyboard with more than 32Kb RAM? I do not know the exact details of processor, but if it is a 8-bit processor it should be possible to build a handyboard with a maximum of 256Kb memory! And (...) (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Schematic, PCB freeware
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(...) Try this software: www.expresspcb.com Though, it doesn't have an auto route function, but this is good for simple pcb design. joema (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | Schematic, PCB freeware
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Does anyone know of a good but simple to use schematic an PCB design freeware program out there on the net?, I have downloaded a few but they vary complex and hard to learn for the simple board I need to create. I like something with a good (...) (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Static sensitivity
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(...) You should probably ALWAYS assume that any IC is ESD (electro-static discharge) sensitive and take all precautions. Mike (26 years ago, 26-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR outputB
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(...) Of course... have you ever listened to your radio in the house before? (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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