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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: 0.925)
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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: 0.925)
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| | Re: int/float to string routines?%nu
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| [Jeff Keyzer] spake unto the ether: (...) Look at my serial I/O routines (Fred has them on the HB ftp/website with the other user-contributed software), specifically the functions in conio.c and serialio.c. I have both float-to-ASCII and (...) (27 years ago, 2-Aug-97, to lugnet.robotics.handyboard)
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fred
(score: 0.925)
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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: 0.924)
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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: 0.924)
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| | Re: legOS corruption
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| (...) Agree with you totally there! However, I have always found it useful to have a debugging version of the kernel which allows you to use something like gdb to debug your embedded system through a serial port. (...) Sadly, the last embedded (...) (26 years ago, 27-Nov-98, to lugnet.robotics)
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fred
(score: 0.924)
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| | Thanks fro the reply...
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| Well, so thanks fro your reply, you make feel live. You are rigth , Fred are right and so chuck are rigth.I'm very obsesive and may be not exist a answer short to my questions , sorry for my self. Your answer is very useful for my, but i don't know (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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fred
(score: 0.924)
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| | Re: your mail
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| (...) Yep. You used the wrong phone cord between the HB and the serial interface board. Fred recently answered that question on this group, I'd direct you to the archives of this list but I don't know where that is. The phone cord, I *think*, is (...) (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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fred
(score: 0.924)
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| | Re: legOS (-> Interdisciplinary Learning?)
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| (...) Are there no bitwise operators? The scheme you described would be much easier to implement [and a damn sight faster] using a bitwise and operator [& in C]. Like the concept though... Hoping to get Mindstorms for Christmas when I will turn the (...) (26 years ago, 2-Dec-98, to lugnet.robotics)
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fred
(score: 0.924)
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| | Re: 3V motors
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| Also, something to keep in mind regarding the motor drivers is that "lowering the power" doesn't change the drive voltage. I assume (ok, here's a chink in the argument, if this is wrong, I hope Fred or someone will correct me) that the handyboard (...) (27 years ago, 6-Aug-97, to lugnet.robotics.handyboard)
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fred
(score: 0.924)
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fred
(score: 0.924)
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fred
(score: 0.924)
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| | Re: sensor input mux calculations
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| I've been looking at the multiple sensor input problem... wouldn't it be simpler to use a series resistor network, rather than parallel, something like this: --|--[ 10 ohm ]--|--[ 20 ohm ]--|--[ 40 ohm ]--|--[ 80 ohm ]--|-- | | | | | (...) (26 years ago, 29-Dec-98, to lugnet.robotics)
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fred
(score: 0.924)
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fred
(score: 0.923)
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| | Magnetic card readers
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| Thanks for don't replly to none of my e-mail!!! All it's cool , but i can accept nobody know wath i answer??? Well i really want somebody tell me: "well i don't want to reply you" . I can do work the reader with code in c , and i want to know how i (...) (27 years ago, 9-Aug-97, to lugnet.robotics.handyboard)
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fred
(score: 0.923)
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fred
(score: 0.923)
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| | Space Shuttle Costs
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| (...) Well in excess of 5,000 Million US dollars (if you don't include the one that blew up). [The humour impaired may require a smiley but I don't do smileys...] (26 years ago, 15-Dec-98, to lugnet.robotics)
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fred
(score: 0.923)
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| | Re: Fw: Space Shuttle Costs ** OFF TOPIC **
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| (...) One Billion is a Million Million. One Trillion is a Million Million Million. It seems that on your way across the Atlantic you threw the thousands overboard with all the "u"s... [That's a joke, don't flame me!] (26 years ago, 16-Dec-98, to lugnet.robotics)
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fred
(score: 0.923)
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| | Re: Space Shuttle Costs
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| (...) Actually No! * The Packet Switching technology that underlies the Internet was developed at the National Physics Laboratory in England. * The HyperText Transfer Protocol that underlies the World Wide Web was invented by an Englishman at CERN (...) (26 years ago, 16-Dec-98, to lugnet.robotics)
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fred
(score: 0.923)
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| | Re: All-around-the-robot bump detection
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| (...) Nice idea, just one problem though... It gives you no idea as to the direction of the collision so the robot would need some other means of locating the cause of the collision and taking remedial action. Still, if you can solve that problem... (26 years ago, 18-Dec-98, to lugnet.robotics)
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fred
(score: 0.922)
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