 | | Nitintol wire
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I am in need of a small amount (5inches) of that wire that changes shape when applied heat. (200F). Anyone know where I can get a small quanity very fast. thanks (27 years ago, 23-May-97, to lugnet.robotics.handyboard)
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| | RE: weird headers
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(...) Thanks, I stuck a pot in it's place and fiddled with it until I got 4.49k and it worked great. I came up with the 4.49k by taking 1/x*.0068 = 32.75. Where .0068 is the cap, and 32.75 was my desired frequency. So x was determined to be 4.49 (...) (27 years ago, 23-May-97, to lugnet.robotics.handyboard)
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| | Re: IR
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Hi Fred, I do not know exactly of your situation with the IR detector/emitter arrangement. I found that it sometimes picks up noise occassionally. I also found that with small resister in the range that you are using (330ohms), the range is too much (...) (27 years ago, 23-May-97, to lugnet.robotics.handyboard)
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| | price
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I also would like to ask you guys where the best place to purchase a handy board is. How much money do you save if you build it yourself as opposed to buying a pre-assembled board? Being a college student, money is an issue. The few places on the (...) (27 years ago, 23-May-97, to lugnet.robotics.handyboard)
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| | Re: weird headers
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Disregard my previous email :) (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | Re: weird headers
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(...) oh. sorry John! (...) yes. Change R4. Put a pot there if you like. (smaller resistance -> higher frequency) -Fred (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | weird headers
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That particular weird header is originated by John Whitten, aka root@snotnose.wizard.org, not my mail list program. All my mail list program does is forward along any mail sent to "handyboard@media.mit.edu" to each person on the distribution list. (...) (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | Re: IR
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Fred, could you please reconfigure your mailer? I'm getting some very strange headers, and it upsets Eudora Pro's filtering. Here's what you're sending it to: To: "'Handyboard'" <IMCEAX400-c=US+3Ba=...MTP=handyb oard+40media+2Emit+2...vetel.com> (...) (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | Cost of HandyBoard???
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(...) I was wondering if someone could tell me how much it would cost if I were to build a HandyBoard from scratch. The cost would include that of etching the pcb at home, all parts, interface cables, batteries etc... Thanx (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | RE: IR
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Brett, Since I'm going through a couple of corporate LANs and WANs, it would be no easy task to reconfigure my mailer. Perhaps you could tell Eudora to filter your messages if the To: field *contains* the word handyboard, rather than the whole (...) (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | Re: IR
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(...) I am not there with you obviously so I cannot see your exact situation but when I was first playing around with the IR detectors (same kind, 38KHz from radio shack) I had the same problem. I finally tracked it down to my IR clock being way off (...) (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | IR
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Hello all, I've been playing with IR proximity sensors, and wonder if anyone can provide some suggestions. I hooked up an IR LED (Radio Shack 'high output IR LED') to the Handyboard's IR output with a 330ohm resistor in series (the smallest value (...) (27 years ago, 22-May-97, to lugnet.robotics.handyboard)
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| | Re: Digital Micro Systems
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Hi Joseph, No, I have never had any problems with Digital Micro Systems. Actually, I am pleased with them. I ordered an assembled board a few months back and got the board on time. Later on I was suspecting something wrong with the board and I had (...) (27 years ago, 21-May-97, to lugnet.robotics.handyboard)
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| | Well, It works! :)
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Howdy all, They say imitation is the sincerest form of flattery- Thank you Fred Martin for designing such a cool board like the Handyboard! I got one last summer hopefully to be one of the CPU's in my robot- but alas it didn't have enough I/O ports (...) (27 years ago, 21-May-97, to lugnet.robotics.handyboard)
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| | Re: Digital Micro Systems
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I have had a bunch of problems with them too while trying to get some replacement parts from a kit they sold me...... I have e-mailed and called and yet never given a response........ (27 years ago, 21-May-97, to lugnet.robotics.handyboard)
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| | Re: Compiler errors.
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I really don't know what the problem with your compiler is. Maybe it's the wrong one for your programming language or for the board you're using. In the version of IC I program with, the program would look more like the following. Maybe that can (...) (27 years ago, 21-May-97, to lugnet.robotics.handyboard)
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| | purchasing IC 3.1?
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Is there anywhere I can purchase IC 3.1 via check? I'm not the (un)lucky owner of a credit card, and paying by check would make things a lot easier for me... ---...--- Jeff Keyzer UCSD EE Major jkeyzer@ucsd.edu (URL) (27 years ago, 21-May-97, to lugnet.robotics.handyboard)
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| | Compiler errors.
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I am still getting a strange compiler error and I can't figure it out. The exact error is: Compiler error! 62 extra bytes left on board stack Sometimes the number of bytes is more and sometimes less. I'm sending along a copy of the code that is (...) (27 years ago, 21-May-97, to lugnet.robotics.handyboard)
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| | Re: IR signal
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Sounds to me like your LED is just not focused straight ahead. I found that sticking the IR LED in a Radio Shack panel mount LED holder (cat no 276-080a) worked the best for focusing the beam of IR. I had tried soda straws and other things, but the (...) (27 years ago, 21-May-97, to lugnet.robotics.handyboard)
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| | Re: buying Chips
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(...) I just ordered two 68HC11A1FN's today from B.G.Micro for $6.95 each. 62256 32x8 static ram's for $2.99 each. www.b.g.micro.com Terry Gathright 669@worldnet.att.net (27 years ago, 20-May-97, to lugnet.robotics.handyboard)
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