 | | Re: before I reinvent the wheel
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before I reinvent the wheelI haven't actually done this, but I'm pretty sure the theory is ok... On the handyboard web page is the pa79600 icb file which lets you use port a bit 7 as serial i/o. I have successfully used this to control some (...) (27 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | before I reinvent the wheel
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Has anyone used their HP48 to talk to a handyboard? (27 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | Using 12V supply with Expansion Board?
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Hello 'Botter, I think I am about to ask a stupid question but as a precaution, will the Expansion board be "ok" with a new 12V motor supply rather than the 9.6V connected to the Power Expansion header (J13)on the HB since the Expansion board and HB (...) (27 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | (canceled)
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| | Re: Shaft encoder
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(...) The shaft encoder library routine available from the Handy Board web site works great for me. Just follow the links to Software, then Libraries, then Shaft encoders. Good luck! -- Will , , __@_/ \_@__ |/ | /__, o @_/ )\ ) ( \ (\/\\, ~~~...~~~ (...) (27 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | RE: OVER 1 AMP
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You can also stack a few of the original chips to make em work in parrallel. (...) (27 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | OVER 1 AMP
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Oh yeah, one more thing, how about connecting a 5 ohm resistor in series with a DC motor and there are 2 amps flowing, then the resistor is dissipating 20 watts of heat. Now I could have a higher value for the resistor, like 7, 10 ohms, I think that (...) (27 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | OVER 1 AMP
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Thanks everyone for your help, Now, I recieved two good answers for my problems. 1) Built an H-Bridge 2) Use the LMD18200 Now has any one any documentation on an easy H bridge that I could build without wasting much time? The same goes for the (...) (27 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | Shaft encoder
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To anybody, I have build a shaft encoder. Where can I get the software driver to evaluate the encoder data? Thanx, Jens (27 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | Re: OVER 1 AMP
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Do you know where the Caps Lock key is on your keyboard? Look for it, there is a little diode lighting up when it's on. If you see the little light, please do me a favor and before typing your email press the caps lock key once. GET IT? THANKS FOR (...) (27 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Re: OVER 1 AMP
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(...) Yes. (...) Built my own H-bridge. (...) No, they would burn up. (...) Yes, it would burn them up. It is much easier to build and H-bridge. (...) A simple common collector H-bridge made out of TIP120 and TIP125 power transistors will handle (...) (27 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Re: [OT] decoding the LEGO #9738 IR Remote Control
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Matt - - Downloaded Max Davies' files, ran them on my HandyBoard ... decoded the IR signal from both RCA and GE TV/VCR remotes with no problem, but with the LEGO remote it says "RC-5 NOT SUPPORTED". I guess that RC-5 is an IR encoding protocol ... (...) (27 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | OVER 1 AMP
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HAS ANY ONE USED MOTORS RATED OVER 1 AMP WITH THE HANDY BOARD? IF SO, HOW DID YOU GO ABOUT INTERFACING WITH THE HB? DID ANYONE USE THE L293 D/B, OR THE SNJ74 ? IS IT A BAD IDEA TO PIGGY-BACK MORE THAN TWO OF THESE CHIPS IN PARALLEL, SAY 3 OR 4? THIS (...) (27 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Purchase 6811s
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BG Micro has 'em. go to www.bgmicro.com, click on "Shop Online," and search for "68HC11". fred In your message you said: (...) (27 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Purchase 6811s
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Anyone know where I can purchase some MC68HC11A1FNs. A Motorola web-site or something. - Thanks (27 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | [OT] decoding the LEGO #9738 IR Remote Control
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Hello All: This LEGO IR remote control (#9738) is making me crazy!!!! For those of you who haven't been reading this thread, what I want to do is the following: The LEGO IR remote control is GREAT for use with 'bots using the LEGO RCX for brains. (...) (27 years ago, 19-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Is there a device that...?
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I'll vouch for the efficacy of the Fascinating Electronics board. I got one years ago after reading the series in Electronics Now/Radio-Electronics using it as a weather monitor. It works fine connected to an HP48 calculator for control of I/O as (...) (27 years ago, 19-Sep-99, to lugnet.robotics.handyboard)
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| | noice
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Hi everybody, I'm a novice in the field of microcontrollers, and I'm trying to use the handyboard with ICC11V5 and NoICEV2.5.2. The compiler gave me no problem (thanks to a search on this list archive!) but I can't get NoICE to work. Has anybody on (...) (27 years ago, 17-Sep-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard and Jini
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(...) Since the HB does not support Java/RMI/TCP etc it's not likely that you'll see Jini on the HB any time soon. However, it would be fairly straightforward to create Jini proxies on a host computer that act on behalf on the HB functions. I plan (...) (27 years ago, 16-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Boolean operators in IC
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Booleans work the same as in most languages. If you want to test for a certain condition or set of conditions, then break it down into things that can be answered as true or false. You can use equalities, such as: if (sky == blue) printf ("you're on (...) (27 years ago, 16-Sep-99, to lugnet.robotics.handyboard)
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