Search found 13 matches

by muntron
Wed Dec 31, 2008 11:41 am
Forum: General Discussion
Topic: cool clock sighting..
Replies: 34
Views: 5195

ok, i think i got it now.. if i understand it right, i think i had this problem once when i tried to light a infra red led and a red led, for some reason i was not able to run them in parallel, but they did work in series, my guess is that one draws more power from one than the other ?? No, it is n...
by muntron
Fri Dec 12, 2008 1:05 pm
Forum: General Discussion
Topic: VGA signal 'splitter' ?
Replies: 16
Views: 4677

Re: VGA signal 'splitter' ?

This is perfect. I only really have one other question. How do I send only the portion of the screen I want to each satellite screen? I imagine I need to somehow define a window inside of the 'bigger picture' in terms of pixels and then only that portion would get sent on port 1 to screen 1 for exa...
by muntron
Tue Jun 03, 2008 2:20 pm
Forum: General Discussion
Topic: PC Based Multimeter (USB)
Replies: 8
Views: 2189

Well, Pico Scopes start at $400. The data loggers they make (which is apparently my goal, in their terms) Start at $190. I would say $100 -$150. If I can't find something is this range, I will just forgo and use the old fashioned way...Measure and write it down periodically (LOL)! There are a numbe...
by muntron
Tue Jun 03, 2008 1:17 pm
Forum: General Discussion
Topic: PC Based Multimeter (USB)
Replies: 8
Views: 2189

ktomecek wrote:But rather, there are PC scopes out there that are simply an interface to the PC. I could use that, but I wanted to reduce the cost, since right now I am don't need a scope.
What kind of price range were you thinking about?
by muntron
Fri Apr 18, 2008 8:54 am
Forum: Computer Programming
Topic: looking for 3 digit frequency counter using PICAXE
Replies: 8
Views: 4992

More Freq Counters

There are more Freq Counter projects on the web than you can count. Take a look at This Page.
Image
by muntron
Tue Apr 15, 2008 7:38 am
Forum: Computer Programming
Topic: help with pic
Replies: 9
Views: 4417

Re: help with pic

Most PIC ADCs are 10bit, so 1 bit is 5/1024 or 0.00488V. A little math can convert, or you can calibrate your divider circuit. I really don't undrstand how you would program that into the pic. Several compilers offer floating point routines, but of course this takes a lot of memory. The usual alter...
by muntron
Wed Apr 09, 2008 4:20 pm
Forum: Computer Programming
Topic: help with pic
Replies: 9
Views: 4417

Re: help with pic

i am new to programming the pic microcontroller. I need help wiht a project. I would like to use the adc to convert voltage to serial data i.e 9.5 volts are coming in so it outputs 9.5 volts. my voltage range would be from 0-20. also does the pic output TTL or RS232 serial data The PIC (you don't s...
by muntron
Wed Apr 09, 2008 3:54 pm
Forum: General Discussion
Topic: High Voltage Power Supply Unit Article
Replies: 15
Views: 3754

Re: High Voltage Power Supply Unit Article

I've been trying out the Eagle Cadsoft free version but the board size is limited and it looks like it would cost about $600 to get the schematic, pcb layout and autoroute functionality from EAGLE Standard (Limitations: 4 signal layers, 160x100mm routing area). Cadsoft does have a "Not For Profit" ...
by muntron
Tue Apr 01, 2008 12:49 pm
Forum: General Discussion
Topic: Front Panels
Replies: 23
Views: 4590

Re: Front Panels

I didn't leave it out, here you go: All of the panels that I posted are around $30.00 each. (Standard turn around time of 5 days, more for expedites) .... Perhaps the other posters will provide pricing (or labour time) for their methods? Comments Welcome! Thanks, and yes, it would be nice if others...
by muntron
Tue Apr 01, 2008 10:36 am
Forum: General Discussion
Topic: Front Panels
Replies: 23
Views: 4590

Re: Front Panels

Recently I've turned to my PC and CAD programs that are emailed to a CNC shop. This is the minimum equipment or supplies that anyone would need. "Hobby Outsourcing"! The resulting metal panels feature high accuracy, tough anodized finish, and paint filled engraved text and logos. Comments Welcome! ...
by muntron
Mon Mar 31, 2008 10:10 am
Forum: General Discussion
Topic: Numeric LED Displays
Replies: 18
Views: 3882

just out of currioucity,,is there something simple like this for alpha-numerics displays or no ? No, it won't be quite as simple. There are two kinds of alpha numeric displays that could be used. The 16 segment display might lend itself to this solution with twice as many dip switches. http://www.e...
by muntron
Tue Mar 04, 2008 3:54 pm
Forum: General Discussion
Topic: Voltage to serial data
Replies: 15
Views: 4276

dyarker wrote:Many PICs (and other uControlers) contain an ADC and a UART, so it can be done with one IC.
Yes, but RS232 needs conversion so another chip is needed, for example max232.
by muntron
Wed Feb 13, 2008 10:47 am
Forum: General Discussion
Topic: Used Oscilloscope Buyer's Guide?
Replies: 22
Views: 9611

I found This Article interesting. It is written by a manufacturer and thus a little self serving (examples reference their device), but at the same time relatively unbiased.