The biggest mistake newbies make is an unintentional lack of tact caused by excitement at having found a bunch of people who share their interest in...
33827
Leon Heller
leon_heller
Oct 1, 2006 8:55 am
... From: "Roy J. Tellason" <rtellason@...> To: <Electronics_101@yahoogroups.com> Sent: Sunday, October 01, 2006 7:39 AM Subject: Re: [Electronics_101]...
33828
Stefan Trethan
stefan_trethan
Oct 1, 2006 11:53 am
On Sun, 01 Oct 2006 04:35:03 +0200, <william.kroyer@...> ... Is there no suitable solid-state option? How'd the relay smoke after you power the...
33829
Barry Savage
paliodude2004
Oct 1, 2006 12:08 pm
Jack, you might try Linear Technology's LTSpice. It was designed for switchers, but will simulate almost anything that SPICE will. I have used it in the...
33830
Leon Heller
leon_heller
Oct 1, 2006 12:17 pm
... From: "Barry Savage" <sofistic@...> To: <Electronics_101@yahoogroups.com> Sent: Sunday, October 01, 2006 1:11 PM Subject: Re: [Electronics_101]...
33831
Dave Mucha
dave_mucha
Oct 1, 2006 12:41 pm
... least). ... I should have been more clear. I have a 12 volt relay with 12 volts on the coil. I wanted to control it with a 5 volt signal. Using a PNP...
33832
rtstofer
Oct 1, 2006 1:20 pm
... side ... If you used a PNP transistor below the relay coil (as in +12V to relay, relay to emitter, collector to ground), it won't work with 5V on the base....
33833
Leon Heller
leon_heller
Oct 1, 2006 1:24 pm
... From: "Dave Mucha" <dave_mucha@...> To: <Electronics_101@yahoogroups.com> Sent: Saturday, September 30, 2006 4:11 PM Subject: [Electronics_101] Re:...
33834
YD
yd_br
Oct 1, 2006 1:30 pm
... If it's only for schematics try TinyCAD. Of course, LTSpice (circuit simulation) and kicad (PCB layout) also have a schematic capture mode but then you...
33835
Stefan Trethan
stefan_trethan
Oct 1, 2006 1:42 pm
... Somehow i doubt it is the joints. I'd hit the thing with the heat gun to reflow it again just to make sure. Chances that you made the same bad joint that...
33836
Stefan Trethan
stefan_trethan
Oct 1, 2006 1:47 pm
On Sun, 01 Oct 2006 14:03:29 +0200, Stefan Trethan <stefan_trethan@...> ... Yea well.. would you believe it if i claimed on a german keyboard n and r are...
33837
william.kroyer@...
laranis1
Oct 1, 2006 1:50 pm
I didn't smoke any relay because I haven't added it yet. A cap wouldn't do me any good because I need to ground the V+ pin after power down. If I tie the...
33838
Stefan Trethan
stefan_trethan
Oct 1, 2006 2:17 pm
On Sun, 01 Oct 2006 15:46:52 +0200, <william.kroyer@...> ... Yes, this way it would work. Is there a reset pin on the display that you can use?...
33839
rtstofer
Oct 1, 2006 2:18 pm
... wouldn't do ... If I tie ... Have you tried something like putting a 10k resistor across the V+ and Gnd? That would probably discharge the power supply...
33840
Andrew Turner
andrewsoc
Oct 1, 2006 3:36 pm
Hi everyone - First post here. I'm a total newbie to electronics and only really have a general understanding of the way things work; that said, I'm ready to...
33841
Leon Heller
leon_heller
Oct 1, 2006 3:55 pm
... From: "Andrew Turner" <turner410@...> To: <Electronics_101@yahoogroups.com> Sent: Sunday, October 01, 2006 1:57 PM Subject: [Electronics_101]...
33842
william.kroyer@...
laranis1
Oct 1, 2006 4:23 pm
Yeah, I tried that. It worked but only if I gave it some time to bleed off. Because of the nature of the project though it's concievable that the circuit...
33843
lcdpublishing
Oct 1, 2006 4:25 pm
Regarding the Atmel - There is very little connected to it - most everything had been removed during the "trials" to get it working. I tried re-soldering it...
33844
lcdpublishing
Oct 1, 2006 4:30 pm
No need for excuses - fast fingers always seem to hit the wrong keys :-) ... <stefan_trethan@...> ... n and r...
33845
william.kroyer@...
laranis1
Oct 1, 2006 4:32 pm
I'd have to tie the V+ low through a resistor and pull it high. I don't know how well that would work for me since I was having some problems with consitency...
33846
william.kroyer@...
laranis1
Oct 1, 2006 4:36 pm
I'm a little confused. Do you want to dim them or light them sequencially? Or both? If you just want to dim them you can just make an array and add a pot...
33847
Tony Smith
dropcat2001
Oct 1, 2006 4:40 pm
... The simple way is to hook all 100 LEDs together, and use pulse width modulation (PWM) to control the brightness. PWM is just another term for turning them...
33848
william.kroyer@...
laranis1
Oct 1, 2006 4:43 pm
In regards to your O-scope. Who's the manufacturer? The problem with having to work the dials around to get a good signal sounds like a dirty switch. I see...
33849
Roy J. Tellason
rtellason
Oct 1, 2006 6:32 pm
... Ah, the shotgun approach to troubleshooting... <...> ... B&K, probably. I've got a couple of items of their equipment, and have used some others....
33850
Roy J. Tellason
rtellason
Oct 1, 2006 6:48 pm
... Why? Do-able easily with a couple of cascaded 4017 chips, for one example. -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest...
33851
gaurav verma
gaurav_verma...
Oct 1, 2006 9:38 pm
Hi Background of the question I am a software engineer by trade. In computersoftware design we always design a solution with extendibility in mind. Forexample...
33852
Leon Heller
leon_heller
Oct 1, 2006 10:03 pm
... From: "gaurav verma" <gaurav_verma_mca@...> To: <Electronics_101@yahoogroups.com> Sent: Sunday, October 01, 2006 10:25 PM Subject: [Electronics_101]...
33853
Stefan Trethan
stefan_trethan
Oct 1, 2006 10:16 pm
On Sun, 01 Oct 2006 23:25:16 +0200, gaurav verma ... In programming, things aren't real, they are virtual. The fake cart can take wares of any size. ...
33854
gaurav verma
gaurav_verma...
Oct 1, 2006 10:23 pm
v\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}w\:* {behavior:url(#default#VML);}..shape {behavior:url(#default#VML);} Hi Leon VHDL as I...
33855
gaurav verma
gaurav_verma...
Oct 1, 2006 10:32 pm
Hi Stefan I exactly meant what you said. On the concept of modularity I understand how to divide things and how to group them into modules. I do that all the...
