Yahoo Groups archive
Messages
Page 85 of 307 · 15341 messages matched
2008-03-19 by Roy E. Burrage
It looks like this application is handled, Steven. You might also want to keep the following in mind for future apps: Silver alloys are fine for "power" applications but they're severely limited when you get down in the mud with really low currents because the contacts will build
2008-03-18 by subscriptions@aeolusdevelopment.com
Steven Hodge Wrote >Thanks for all your input. Got it. I'll use the 28 VDC rating for 12 v. >I need to make/break 3.5A so I'll have to switch (pun intended) to a switch >rated at 4 A at 28 VDC instead of the 3 A one I was hoping to use (for >aesthetic compatibility with adjacent
2008-03-18 by subscriptions@aeolusdevelopment.com
David VanHorn Wrote >The voltage ratings on switches are similar to those on fuses. >Above that voltage, the switch is not guaranteed to be able to break >the circuit. >This has to do with inductance in the load, and for a large enough >inductor, no reasonable switch will work. T
2008-03-18 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, "Brian Fairchild" wrote: > Does anyone know of any adaptor modules > with mounted Mega640/1280/2560 Although it is intended primarily to be used as a prototyping/development board for ZX-1280 applications, the ZX-1280 Development Board can be also
2008-03-18 by Steven Hodge
Thanks for all your input. Got it. I'll use the 28 VDC rating for 12 v. I need to make/break 3.5A so I'll have to switch (pun intended) to a switch rated at 4 A at 28 VDC instead of the 3 A one I was hoping to use (for aesthetic compatibility with adjacent switches). Steve From:
2008-03-18 by Dyan Fassett
The STK600 comes with a soldered on ATMega2560 demo routing card ... $199 at Mouser, several in stock now. You might also look at the STK600-TQFP100 adaptor card with a socket this mounts to the STK600 it is $99 at Digi-key. If your just looking at the 640-2560 family then the ST
2008-03-18 by David VanHorn
On Tue, Mar 18, 2008 at 2:07 PM, Zack Widup wrote: > > I believe Sander is right. I'd keep the same current rating for lower > DC voltages as for 28 volts. Right, current is just current, the voltage across a closed switch is essentially zero.
2008-03-18 by David VanHorn
The voltage ratings on switches are similar to those on fuses. Above that voltage, the switch is not guaranteed to be able to break the circuit. This has to do with inductance in the load, and for a large enough inductor, no reasonable switch will work.
2008-03-18 by David Kelly
On Mar 18, 2008, at 11:59 AM, Sander Pool wrote: > I'm no expert but looking at Ohms law I think it's safe to say that > the > current rating is voltage independent. After all the resistance of the > switch is more or less constant as is the power dissipation capacity. Yes, an am
2008-03-18 by Zack Widup
I believe Sander is right. I'd keep the same current rating for lower DC voltages as for 28 volts. Part of the reason the AC and lower voltage DC ratings are different is because of the arcing potential when you turn the switch off. Zack --- In AVR-Chat@yahoogroups.com, Sander Po
2008-03-18 by Sander Pool
Hi Steve, I'm no expert but looking at Ohms law I think it's safe to say that the current rating is voltage independent. After all the resistance of the switch is more or less constant as is the power dissipation capacity. Voltage rating deals with how much voltage can be applied
2008-03-18 by Steven Hodge
I know this isn't anything about uC's but I have a general question regarding toggle switch ratings, and there seem to be a lot of very knowledgeable people on this list. Typically a data sheet rates a switch for, say, 125 VAC, 250 VAC and 28 VDC. My applications, however, are ty
2008-03-18 by David Kelly
On Mar 18, 2008, at 9:54 AM, rakesh modi wrote: > Hello > Can i use a 16-bit timer/counter as an 8-bit in atmega32? Reply me plz Yes. Clearly you haven't tried. Set an output compare register to 0x00ff and run it in one of the modes that interrupts and/or resets on the chosen OCR
2008-03-18 by Praveen
Dear All, I have recently bought the RF development kit using AT86RF211 DO any one have the AT86RF211 PC Software? waiting to hear from you. Thank you. With regards, Praveenlal E.V. Tech Asst-C (Electronics Div), Institute for Plasma Research, Near Indira Bridge, Bhat P.O., Gandh
2008-03-18 by rakesh modi
Hello Can i use a 16-bit timer/counter as an 8-bit in atmega32? Reply me plz R.P.Modi Chat on a cool, new interface. No download required. Go to http://in.messenger.yahoo.com/webmessengerpromo.php [Non-text portions of this message have been removed]
2008-03-18 by dkelly@hiwaay.net
Quoting "Roy E. Burrage" : > Do you want schematics, pc board artwork, mechanical drawings, with CAM > > files, an operator's manual, service instructions, and code? If so, > we'll need: > > 1. Schematic capture file format requirement. > a. Do you also need spice models? > 2. Sa
2008-03-18 by Zack Widup
Well, it apparently hasn't been patented yet so I'm working on patent drawings. But I'd take all of the below if someone else wants to help, particularly #6! :-) Zack --- In AVR-Chat@yahoogroups.com, dkelly@... wrote: > > Quoting "Roy E. Burrage" : > > > Do you want schematics, p
2008-03-18 by Brian Fairchild
Does anyone know of any adaptor modules with mounted Mega640/1280/2560 (ie 4 USART chips) on? I'd rather like to prototype at 0.1" before committing to a SM board. Brian Fairchild No virus found in this outgoing message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.7
2008-03-18 by Roy E. Burrage
Do you want schematics, pc board artwork, mechanical drawings, with CAM files, an operator's manual, service instructions, and code? If so, we'll need: 1. Schematic capture file format requirement. a. Do you also need spice models? 2. Same for pc board artwork. 3. Do you want mec
2008-03-18 by Philippe Habib
Every time I tried to build one of those, I got horribly scratched by the cat when I tried to insert the shaft. Please send me a method in detail, suitable to submitting as a end of term project, for how it should be done. On Mar 17, 2008, at 3:54 PM, Zack Widup wrote: > > I have
2008-03-18 by John Samperi
At 11:05 AM 18/03/2008, you wrote: > Traffic Lights! So, I did this >(warning - self promotion!): Me too, BOTH :-) Except that mine run REAL traffic lights and pedestrians push buttons (call buttons). Well not on the road as such but things like demo system in briefcases for show
2008-03-17 by Graham Davies
--- In AVR-Chat@yahoogroups.com, John Samperi wrote: > ... mine run REAL traffic lights > and pedestrians push buttons ... Ah, there'd be no point to that here in Massachusetts. Coming from London, I thought I was a fairly hardened J-walker, but I have nothing on the Bostonians.
2008-03-17 by Graham Davies
--- In AVR-Chat@yahoogroups.com, M F wrote: > i am a student i am looking > for a practical project ... A while ago I thought I had the answer to this question, i.e. someone wants to try their hand at programming a microcontroller and wants a meaningful project of some sort. I me
2008-03-17 by Zack Widup
I have often wondered if you could use an AVR to control the speed of the infamous cat-and-butter motor. Since buttered bread always falls buttered side down, and cats always land on their feet, if you strap a piece of buttered bread to a cat's back (butter facing up) and drop hi
2008-03-17 by David Kelly
On Mon, Mar 17, 2008 at 05:22:43PM -0400, David VanHorn wrote: > > hmmm a "suicide spammer"... > > I did warn him, since he had also posted arguably related content > earlier. > > Generally, we require membership to be approved, and then they are > moderated until we see that the
2008-03-17 by Zack Widup
Hi Shervin, How simple or how complicated are you interested in? Writing a program that flashes lights when you push buttons is fairly simple. Writing a program to do serial comm using the built-in USART is a little more complicated. Something like reading a battery voltage with
2008-03-17 by Zack Widup
Pretty much the same idea over at the AVRClub group. I know it doesn't get as much activity as this one, but there is some activity. Spammers try to get in. Everyone is moderated at first and after someone has posted a few AVR-related messages, one of us two moderators eventually
2008-03-17 by dlc
Oops, sorry, you can delete my reply then. DLC David VanHorn wrote: > I have already replied to this user offline. > No further discussion here is needed. > > ------------------------------------ > > Yahoo! Groups Links > > > -- ------------------------------------------------- D
2008-03-17 by dlc
To Mr. or Ms. Anonymous, You are SO wrong. Please read the name of this group. Is it "Middle Eastern Political Viewpoints"? No, it is AVR-Chat, where we chat about the AVR microcontroller. I know of many groups that have been totally destroyed by random political mouthings such t
2008-03-17 by David VanHorn
I have already replied to this user offline. No further discussion here is needed.
2008-03-17 by David VanHorn
> hmmm a "suicide spammer"... I did warn him, since he had also posted arguably related content earlier. Generally, we require membership to be approved, and then they are moderated until we see that they are posting appropriate content, before they can directly post to the list.
2008-03-17 by John Samperi
At 12:20 AM 18/03/2008, you wrote: >This thread, and its originator, have been terminated. hmmm a "suicide spammer"... Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel.
2008-03-17 by John
The possibilities here are endless. What type of projects interest you? If you are looking for some inspiration, I would suggest looking over the AVRFreaks web-site. While I wouldn't endorse plagiarism, you can use the variety of projects there as good food for thought on the ran
2008-03-17 by David VanHorn
This thread, and its originator, have been terminated.
2008-03-17 by David Appleton
Well put John! [Non-text portions of this message have been removed]
2008-03-17 by M F
hi friends i am a student i am looking for a practical project with AVR i have looked the net but i didnot find a good one what is your suggestion do u have a new project? may u help me?i myself like power supply with avr i also find one but the instruction was in french!!!other
2008-03-17 by Zack Widup
I am not without feeling; it's just that there's a place where some things belong and other places where they don't belong. You wouldn't go into a dentist's office lobby and start selling his patients life insurance. You wouldn't go into a hardware store for medicine. This group
2008-03-16 by John Samperi
At 09:33 AM 17/03/2008, you wrote: >information about ARABS, not by "annoying excitation" !!!! Thank you Ahmed. If more people were as sensible as you the world would be a better place. Regards John Samperi ******************************************************** Ampertronics Pty
2008-03-16 by David VanHorn
On Sun, Mar 16, 2008 at 7:01 PM, Roy E. Burrage wrote: > Hay! > > Has anyone heard from Kat the ListMom lately? She's been awfully quiet > for a while. Not for a while.. But she's been busy.
2008-03-16 by Roy E. Burrage
Hay! Has anyone heard from Kat the ListMom lately? She's been awfully quiet for a while. REB David VanHorn wrote: >> And u give yourself the right to reduce my level .... >> I hope to talk to people with Open mentality!!!! >> > > Yes, actually I have that right as co-moderator. >
2008-03-16 by David VanHorn
> And u give yourself the right to reduce my level .... > I hope to talk to people with Open mentality!!!! Yes, actually I have that right as co-moderator. I did warn you.. Bye.
2008-03-16 by ahmed nabil
Yes, Plz STOP this "aimless" talking, many messages are sent in vain !!!!! these messages couls be better sent in an AVR topic we all are here to get knowledge not to talk in other topics. For the Egyptian man, i am also Egyptian but i think you are somehow enthusiastic, i am hap
2008-03-16 by sameh
TO WHO CALLED DAVID sorry ,you have no any rights to do that even though you are the co- moderator of this group plz, you should respect every one because as you said that you are co- moderator of this group so all your conducts taken as impression about this group so now I have
2008-03-16 by John Samperi
At 09:17 AM 17/03/2008, you wrote: >I hope to talk to people with Open mentality!!!! No problem. Are you of open mentality??? Start your own group to talk to other "open mentality" loonies!!!! Go away!! This is for AVR ONLY topics. Regards John Samperi ***************************
2008-03-16 by mido glgl
Thanks to everyone reply to my question , but all interested in that isn't the right group , you may be right.But why you don't interest in understand the question . Do u know why?? U are without feeling And u give yourself the right to reduce my level .... I hope to talk to peop
2008-03-16 by John Samperi
At 06:08 PM 16/03/2008, you wrote: > I want to ask you what you know about Arab. They are usually referred as "Mad Arabs" and you are showing why!!! Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham H
2008-03-16 by Zack Widup
Gooooood question! I don't know if it's the same people, but someone has been sending similar messages to the AVRClub group, which I'm a moderator of. I will be banning them shortly for spam. Zack On Sun, 16 Mar 2008, Roy E. Burrage wrote: > Kind of makes a feller wonder what the
2008-03-16 by David VanHorn
I've asked him to take it elsewhere. He has had some relevant, if poorly done questions, so I haven't banned him at this time,
2008-03-16 by David VanHorn
Sorry, wrong forum. Please take that discussion elsewhere.
2008-03-16 by Zack Widup
Typical spammers who sneak in once in a while. I'm sure they will be dealt with. Zack On Sun, 16 Mar 2008, none wrote: > If this is to become a political group perhaps I had better "undo my > subscription" > > Owen. > >