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| Hi Fred: Thank you for returning my call. The problem I am having is with the serial interface. The green light is not coming on when it is connected to the computer. I tried to jiggle it to see if there was a loose connection, and I found that (...) (28 years ago, 22-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.962)
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| | Re: Neglection of U8 on Parts List
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| Bill is right, U8 is a '374. Peter, where exactly are you looking that you don't see U8 listed? It's there at (URL) post URLs if you're trying to help me maintain the site. Thanks. -Fred In your message you said: (...) (28 years ago, 26-Mar-97, to lugnet.robotics.handyboard)
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fred
(score: 0.962)
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fred
(score: 0.962)
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fred
(score: 0.962)
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| | Handyboard serial interface
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| Hi Fred: Thank you for returning my call. The problem I am having is with the serial interface. The green light is not coming on when it is connected to the computer. I tried to jiggle it to see if there was a loose connection, and I found that (...) (28 years ago, 22-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.962)
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| | Re: IR Subsystem confusions.
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| In your message you said: (...) main purpose: allowing HB's to transmit IR codes that can be rec'd by other HB's or circuits. example -> let an HB run an IR beacon that can be found by another HB. sub-purpose: run IR transmitters for reflective IR (...) (28 years ago, 28-Mar-97, to lugnet.robotics.handyboard)
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fred
(score: 0.962)
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| | is IC compatible with the MC68HC11F1
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| hi from France, I already have a handy-board running with a 11A1 chip and I plan to adapt the circuit for a 11F1 chip, with the same memory map. Does someone have any experience about running IC with this chip? Will it work with the pcode_hb.s19 (...) (26 years ago, 21-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 0.961)
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fred
(score: 0.961)
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fred
(score: 0.961)
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fred
(score: 0.960)
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| | L293E sense output ??
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| Hi, I'm using a L293E to drive my motors. Each driver has a "sense" output and I don't understand the use of it. How can I use those outputs with the Handy-Board ? Thanks for any help, ......... Fred, Cannes, France EMail: fred.maillet@wanadoo.fr (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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| | Re: Handyboard to Vector 2X compass
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| OK everyone. I put Tom's stuff online, see the HB HP (handy board home page :-). -Fred P.S. Tom, check your color table the next time you make a GIF. Somehow your black and white schematic GIF got saved with 256 colors (255 blacks and 1 white), (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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| | Questions, questions, questions......
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| Hi I've just built my first HandyBoard (thanks for the great service Prabal), and have a few questions (that I can't find in the FAQ). What are the hardware-imposed software differences between the HandyBoard and the 6.270/Rug Warrior boards ? ie it (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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| | battery life
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| (1) the memory should last about a month if the board is turned off, as several have noted. (2) please be aware that the serial interface will *DRAIN POWER FROM THE HB* if the interface itself is not plugged into power. thus do not expect anywhere (...) (27 years ago, 16-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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| | Re: status of the expansion board
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| Hi I think that Fred's idea for the expansion board is OK, but I'd also like to see a "bare-bones" expansion board for those hardware hackers amongst the HB community. What I mean is just a simple board with a few more analog input's, and two sets (...) (28 years ago, 12-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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| | HOW TO UNSUBSCRIBE
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| Greetings all, This is the periodic reminder on how to be removed from the Handy Board mailing list: Write to me, Fred Martin, fredm@media.mit.edu, and ask. Also, please note that the Media Lab sysadmins changed some internals of the mailing list (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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| | Re: I have a good schematic to post
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| Hi Keith. Send it to me and I'll post it for all. Please send as a GIF not JPG as this is better for line art & text (i.e., a schematic). I can decipher just about any encoding format so use whatever's easiest for you. -Fred In your message you (...) (27 years ago, 22-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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| | Re: serial connection
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| (...) and then Chuck McManis wrote: (...) Not necessarily. There could be a problem with the memory circuit that is preventing pcode_hb.s19 from loading properly. Tunde, use a multimeter to check all of the connections in the memory circuit (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.960)
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fred
(score: 0.960)
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| | ICC Multitasking...
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| (...) Raj, Thanks for the reply. According to the ICC web page they have two multitasking options: ---...--- REXIS Subsumption Architecture Multitasking Executive REXIS (Real-time EXecutive for Intelligent Systems) is a multitasking executive with (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 0.959)
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