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Messages 17872 - 17901 of 41161   Oldest  |  < Older  |  Newer >  |  Newest
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17872
This topic has probably been covered before, but I missed it. I'm looking for a place to buy soldering tools in North Seattle. I don't really need anything...
cbc2287
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May 1, 2004
1:07 pm
17873
There is Vetco in Bellevue (they recently moved again?), Westlake electronic supply in, well, Westlake. There is Radar Electric in Bothell Canyon Park which...
Larry Barello
lbarello
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May 1, 2004
1:12 pm
17874
Charles, You could go to http://outpost.com/ This is Fry's online store and you could order what you want there. John Edwards botbuilder@... ...
John Edwards
robomaster47
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May 1, 2004
1:45 pm
17875
fry electronics. they have all of this and more ... From: cbc2287 To: SeattleRobotics@yahoogroups.com Sent: Friday, April 30, 2004 9:43 PM Subject:...
tbrenke@...
trbrenke
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May 1, 2004
3:04 pm
17876
Thanks Larry (and others), The ordering online idea had occured to me, but I'm looking for immediate gratification. Well, actually, I'm hoping to do some ...
cbc2287
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May 1, 2004
3:40 pm
17877
I may be mistaken, but aren't these the same, only cheaper and more versatile? http://www.qprox.com -S [Non-text portions of this message have been removed]...
samthemagical@...
samthemagical
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May 1, 2004
4:28 pm
17878
Vetco and Fry's are likely the only place open on Saturday. ... From: cbc2287 Thanks Larry (and others), The ordering online idea had occured to me, but I'm...
Larry Barello
lbarello
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May 1, 2004
4:45 pm
17879
I posted your question to the ThereminVision Discussion group. http://groups.yahoo.com/group/thereminvision/ Bob Leonard samthemagical@... wrote: I may be...
Bob Leonard
bestbobleonard
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May 1, 2004
6:53 pm
17880
Hi, I snagged a pair of Innomedia radio modems off e-bay a while back and have been using them to provide a data link to my "rover": ...
Brian Dean
bsd512
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May 3, 2004
12:07 am
17881
... Many/most radio links perform badly with asymmetrical data. Normally, you have to manchester encode decode, or go through some other mechanism to insure...
David VanHorn
dvanhorn2001
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May 3, 2004
12:22 am
17882
... Very true, but I think these modems take care of all that internally. I think these are supposed to be a "cable replacement" solution. -Brian...
Brian Dean
bsd512
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May 3, 2004
12:28 am
17883
... I can't think why they would lock out nulls then. Not very handy, since the workaround is rather ugly (send in hex ascii)...
David VanHorn
dvanhorn2001
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May 3, 2004
1:23 am
17884
if you have the posablity of XORing the data then XOR it by &H55 before sending it. decode at the other end with XOR &H55 also this is only valid IF you can...
tbrenke@...
trbrenke
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May 3, 2004
1:28 am
17885
... And the Xor of 0x55 and 0x55 is? It just moves the problem....
David VanHorn
dvanhorn2001
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May 3, 2004
1:40 am
17886
If you are sure that you can not send 0 the best solutions I can think of are either sending two bytes for each data byte or compressing the data so 8 ...
SOLID Corp.
swillia921
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May 3, 2004
2:17 am
17887
... Very inefficient. FEC would be a better bet, and I think it only needs 3 bits per nybble IIRC. Check the docs on the link, something's amiss....
David VanHorn
dvanhorn2001
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May 3, 2004
2:21 am
17888
Would base-64 (uuencode) work for you? There are a number of archaic modem protocols from the bad old days of non-transparent connections. For example, you can...
Chuck Harrison
c_f_harrison
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May 3, 2004
2:42 am
17889
... I agree. It just doesn't make sense that a 0 won't make it through. It's got to be something else. I'll keep digging. -Brian...
Brian Dean
bsd512
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May 3, 2004
2:46 am
17890
... Well, I think I've ruled out the radio link. I am able to reproduce this with a direct wired link. In my previous test where I thought I ruled out...
Brian Dean
bsd512
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May 3, 2004
3:18 am
17891
... Problem solved. The moral to this story is to never use a value of 0 as the return value from the function to get serial data to mean that there were no...
Brian Dean
bsd512
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May 3, 2004
4:00 am
17892
... Erg. Sounds like NSBasic. They can't send a null, because they use null terminated strings instead of counted strings.. But wait, it gets better. Since...
David VanHorn
dvanhorn2001
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May 3, 2004
4:13 am
17893
... Hmm.. That would make sense I guess....
David VanHorn
dvanhorn2001
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May 3, 2004
4:35 am
17894
... And the second moral is when you think you've ruled out everything else except for the one thing you think is causing the problem because it's the first...
Brian Dean
bsd512
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May 3, 2004
4:59 am
17895
Ouch! I feel your pain... On the lighter side............ Zappe's rule #1: Never underestimate the ability of anyone to do something stupid, even yourself....
Mr S
szinn_the1
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May 3, 2004
6:18 am
17896
the problem with most of these is that they have a max "no change" time. IE sending a 0 (8 bits low) is longer then the time allotted for a non transition. I...
tbrenke@...
trbrenke
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May 3, 2004
6:37 am
17897
LOL ... From: Brian Dean To: SeattleRobotics@yahoogroups.com Sent: Sunday, May 02, 2004 9:00 PM Subject: Re: [SeattleRobotics] Innomedia Radio Modem question ...
tbrenke@...
trbrenke
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May 3, 2004
6:39 am
17898
Beautifully spoken sir. I commend you your abilities as a word smith and your even finer abilities to speak the truth. LMAO ... Lee S. Johnson ...
Lee Johnson
ljohnson@...
Send Email
May 3, 2004
11:24 am
17899
Congratulations on solving a tough problem. It's still an interesting topic... Re. Very inefficient. FEC would be a better bet, and I think it only needs 3...
SOLID Corp.
swillia921
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May 3, 2004
12:34 pm
17900
There could be some setting option that instructs the modem to interpet a null byte as a command to produce a break code. A radio break would be to send...
Barry Smith
bdsmith@...
Send Email
May 3, 2004
1:02 pm
17901
... Agreed. I was just looking to get the most bang for the buck. As to complexity, the AVR is a pretty capable machine, it wouldn't be starved for cycles. I...
David VanHorn
dvanhorn2001
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May 3, 2004
1:25 pm
Messages 17872 - 17901 of 41161   Oldest  |  < Older  |  Newer >  |  Newest
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