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Messages 6741 - 6770 of 8841   Oldest  |  < Older  |  Newer >  |  Newest
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6741
All: It seems that if one specifies #device = ICD, then the fuse setting for the power up timer (PUT) is not honoured by CCS. It does this silently except for...
Albert den Haan
albert_den_haan
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May 2, 2006
3:46 am
6742
Reminder from the Calendar of ORE_bits http://groups.yahoo.com/group/ORE_bits/cal Monthly meeting Monday May 8, 2006 7:00 pm - 10:00 pm (This event does not...
ORE_bits@yahoogroups....
Send Email
May 7, 2006
10:58 pm
6743
Great meeting guys. Nice to see all the mini-sumo action and some new members. Aaron, you've finally got some competition for your mini-sumo bots :) Cheers, ...
Ron Clough
khufuca
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May 9, 2006
3:00 am
6744
Firstly, it was great fun at the meeting! Glad Aaron took the extra effort to ensure the mini sumos and the ring were there! I'll try and have some videos...
picdude777
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May 10, 2006
2:05 am
6745
Hi Guys; I've started a blog at http://robot-tics.blogspot.com to provide a place to debate the future of robotics. I've put up the first couple of posts and...
dalehov
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May 10, 2006
4:46 pm
6746
Here's some of the action from the Mini Sumo battles that took place May 08. meteor.rchomepage.com/sumo_edit.wmv Although I didn't include them, I did lose a...
picdude777
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May 11, 2006
12:04 pm
6747
Hey! What's the idea of beating up my poor black minisumo when the batteries were dead and it was in line following mode? <grin> My miniore sumo is underweight...
aaron_ramsey
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May 11, 2006
5:57 pm
6748
Do MOSFETs require a driver IC to get the proper gate voltage? I'm looking to make a constant-current discharger, and I'm wondering how to interface the...
picdude777
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May 13, 2006
12:26 am
6749
It depends on the MOSFET. Most take more than 5V on the gate to be fully turned on, but for others 5V is enough and can be connected directed to the PIC. The ...
Micro
micro223
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May 13, 2006
1:49 am
6750
Correction: I meant IRFZ44N Guy ... http://us.click.yahoo.com/.7bhrC/MGxNAA/yQLSAA/2OlolB/TM ... http://us.click.yahoo.com/DHchtC/3FxNAA/yQLSAA/2OlolB/TM ... ...
Micro
micro223
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May 13, 2006
3:42 am
6751
... You can look for "logic level MOSFETs" which work well with digital outputs without requiring any extra drive circuitry. Troll through the digikey catalog...
Ian Gough
igough57@...
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May 13, 2006
12:53 pm
6752
Is there an assembly guide for the miniore board? I started assembling mine and some parts are not solscreened on the board the first one that comes to mind is...
peterman921
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May 14, 2006
1:14 pm
6753
... I haven't put together an assembly guide for it. The current documentation for the board can be found in the file area for the mailing list: ...
Aaron Ramsey
aaron_ramsey
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May 14, 2006
1:23 pm
6754
Hi! I have both IRF540N and IRF1010N FETs. Are eitther of these "logic level"? If not, what parameter is relevant when looking at a FET spec sheet? Thanks....
picdude777
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May 15, 2006
2:15 am
6755
on the polarized caps the drawings mark the positive are the caps marked the same or is it the neg thats marked Jon -- 109 Mardan Dr Grants Pass,OR 97527 541...
Jon & Tammy
peterman921
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May 15, 2006
5:43 am
6756
Hi Jon, The miniore design uses an older layout library from before I added silkscreen markings for the positive side of the polarized caps. The PDF of the...
Aaron Ramsey
aaron_ramsey
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May 15, 2006
11:48 am
6757
In the Digikey catalog (dunno about others) the International Rectifier MOSFETs are listed by type and package and the logic level devices are listed for...
Ian Gough
igough57@...
Send Email
May 15, 2006
12:22 pm
6758
... I downloaded the pdf and see the + markings but is the *capacitor* marked negative or positive are they the same as discrete components that have the...
Jon & Tammy
peterman921
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May 15, 2006
2:37 pm
6759
Caps will have a stripe down the side with what looks like dashes for the negative side. Also, the negative lead is shorter. Hope that helps....
klmckinnon
kmuck4
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May 15, 2006
11:22 pm
6760
thats for discrete I want to know if surface mount is marked on the negative or positive Jon ... -- 109 Mardan Dr Grants Pass,OR 97527 541 474 7782 Wherever...
Jon & Tammy
peterman921
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May 15, 2006
11:31 pm
6761
Ah, my apologies..... in that case... http://rocky.digikey.com/WebLib/Nichicon/Web%20Data/WX%20Series%20Alum%20Elec%20Chip%20Cap.pdf it would appear the marked...
klmckinnon
kmuck4
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May 15, 2006
11:43 pm
6762
... Discrete electrolytic capacitors have their negative lead marked, but tantalum caps can have their positive lead marked. I don't know if that practice is...
michael taylor
plcurechax
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May 16, 2006
3:13 am
6763
... well it was one of those "doh" moments just look up the datasheet dummy in this case it was the positive marked so all caps are now installed the next big...
Jon & Tammy
peterman921
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May 16, 2006
4:47 am
6764
Looking at the schematic, it looks like the MINIORE board will work with a 16F876A (I happen to have one!) as well, with a few caveats... - an external...
picdude777
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May 16, 2006
6:02 pm
6765
Spamming my own thread here, but it occurred to me that it should be easy to port all of the MkIII Mini Sumo code samples to a 16F876-based MINIORE. I'll...
picdude777
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May 16, 2006
7:21 pm
6766
... That would be cool. I hadn't considered that before. ... This could be possible. Some of the general I/O pins from the header on the lower right could be...
Aaron Ramsey
aaron_ramsey
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May 16, 2006
11:21 pm
6767
... The power led is just to the right of the PWR silkscreen, just above R1. The anode side (positive) is on the PWR silkscreen side. The user LED is just...
aaron_ramsey
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May 16, 2006
11:42 pm
6768
What line sensor devices are used on the Miniore? There are three lines on the PCB for each, which is a bit confusing, as most are 4-wire devices (IR...
picdude777
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May 17, 2006
12:10 am
6769
... The grounds can be combined on the emitter and receiver. Saves a bit of space on the layout. <grin> I use both QRB1114 and QRD1114 devices, but pertty much...
Aaron Ramsey
aaron_ramsey
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May 17, 2006
12:21 am
6770
Duh! :) Makes sense now... I have wondered why they "waste" an A/D channel on what is basically a binary input. Could you not adjust the gain to ignnore the...
picdude777
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May 17, 2006
1:35 am
Messages 6741 - 6770 of 8841   Oldest  |  < Older  |  Newer >  |  Newest
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