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 | | Walking robot and change of email
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| Hi, I wonder if this is a little off topic, but since I got a Handyboard I would like to use it in a walking robot application. Does anyone have any experience in making 2-legged robots? Hmm.... Umm...and a message for Fred....my email has changed (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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fred
(score: 0.106)
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| | LCD Removal
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| I was just wondering if there's any way to disable and remove the LCD screen and still have the HB work. My design does not require the LCD, so if i could remove it my robot would then be a little more balanced. Every time I remove the LCD my (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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fred
(score: 0.105)
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fred
(score: 0.104)
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fred
(score: 0.104)
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| | Pad sizes and hole sizes
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| I'm working on a board and I would like to avoid much trial and error. I have read much on selection of pad sizes/via sizes and hole sizes but there seems to be some contridiction. Does anyone know what the pad sizes (for ICs), hole sizes (for ICs) (...) (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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fred
(score: 0.103)
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fred
(score: 0.103)
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| | Trinity College contest report
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| Hi all, first, the URL: (URL) went to last weekend's Fire-Fighting Robot Contest at Trinity College, along with my colleague Steve Ocko, who had built a cute robot based on our network-cricket technology (see (URL) for more on that). We spent about (...) (26 years ago, 22-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.103)
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| | Re: IR Transmit ?!? HELP
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| (...) Did you follow the instructions in the HB Assembly debug? at (URL) says: Output Stage If LED9R fails to light after the poke command is issued, trace the following progression of signals. Please refer to the infrared output schematic: * 6811 (...) (26 years ago, 22-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.103)
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| | Re: 16 digital outputs as Fred suggested
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| 1. please read the Appendix B documentation in (URL) explains this in more detail than the FAQ. 2. you must the even-numbered Yx signals for output latches. Since Y6 is taken (by the on-board latch for the motor drivers), you're left with Y0, Y2, (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.103)
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| | Re: Using Port D of the Handy Board
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| In your message you said: (...) ve just read on the Handy Board FAQ that it was not possible. So, where is the truth ??? where in the FAQ does it say that it's NOT possible? If you look at the link (URL) explains how to use Port D as outputs. (...) (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.103)
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| | Re: 64K RAM?
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| This is a common question, so I went ahead and put an answer in the FAQ. Take a look at: (URL) what it now says: ---...--- IS IT POSSIBLE TO EXPAND THE HANDY BOARD'S MEMORY TO 64K? Actually, this is hard to do. Here's why: 1.There is a compromise in (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.103)
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fred
(score: 0.103)
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| | Re: Problems connecting 2 Handy Boards
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| The code found at (URL) was intended for connecting a Handy Board to the host PC. It is possible to connect two Handy Boards, but you must use a NETWORK style RJ11 cable, rather than the usual TELEPHONE style RJ11. See the FAQ, under entry "The R11 (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.103)
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| | Re: Big adapters?
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| In your message you said: (...) because if you put it into zap mode, you'll fry your batteries -- unless you've switched to a much higher amperage pack. (...) no, because you can't send that much current down the RJ11 cable. unless your robot draws (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.102)
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fred
(score: 0.102)
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| | Re: Help - Cannot download!
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| try using DL.EXE (part of the Interactive C distribution) after following the serial port options directions given the FAQ (under downloading problems). fred In your message you said: (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.102)
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| | Re: Servo Routines
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| can you ascertain whether the knob is returning the same value every time through the loop? i wasn't clear if "even when the knob is not changing" meant just that you weren't turning the knob, or whether you were sure it was always producing the (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.102)
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| | Re: SPI?
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| (...) this is correct... (...) but this is not. the Handy Board communicates with the desktop computer using the SCI: serial communications interface. The SPI is for high speed (up to 1 megabaud) sychronous (i.e., separate clock signal) transfer to (...) (26 years ago, 11-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.102)
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| | Re: dc motor blues
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| yup, here's what's going on. the motor percent argument controls the POWER, not the speed. if the motor is essentially unloaded, it will run at nearly full speed even at a low power percentage. if you build a gear train that makes the motor do some (...) (26 years ago, 10-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.102)
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fred
(score: 0.102)
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