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1  Forum 2005-2010 (read only) / Bugs & Suggestions / Re: Enhanced LiquidCrystal on: January 30, 2010, 10:17:05 am
Nevermind, I noticed in the original post that the file is named LiquidCrystal440.zip.  I was able to download that one.

http://healthriskappraisal.org/LiquidCrystal440.zip
2  Forum 2005-2010 (read only) / Bugs & Suggestions / Re: Enhanced LiquidCrystal on: January 30, 2010, 10:08:49 am
I would like to try this out, but the .zip is not found when I click the link!

Should it be available there now?
3  Forum 2005-2010 (read only) / Syntax & Programs / Re: Duplex communication on: February 03, 2009, 08:58:58 am
Also in regards to examples I have seen to emit an IR signal, the ones I have seen do not consider the possibility of receiving an IR signal in the middle of transmitting one out.  So I am wondering about how to handle these situations without losing any data in or out.
4  Forum 2005-2010 (read only) / Syntax & Programs / Re: Duplex communication on: February 03, 2009, 08:40:32 am
I have seen examples to read IR that use pulseIn().  It seems an easy way to read IR in, but the examples all seem to wait for IR to come in and then process it.  While in my application I want to be able to have the user shoot the laser gun, thus sending out an encoded IR signal while also being able to read an incoming IR signal as well, without missing it and being able to process both.  Hopefully that helps explain this some.

One worry I have is that if someone is continuously shooting, the arduino will never have a rest to read incoming IR to see if anyone has shot them.  And if I did stop to read incoming IR it seems that I would then have messed up my timing of an outgoing signal.  Seems to me if I detect an incoming IR signal I would have to stop everything else and wait for the complete signal to come in before continuing.

MILESTAG is the particular protocol I am hoping to implement.
http://www.lasertagparts.com/mtformat.htm

Thanks for your replies!
5  Forum 2005-2010 (read only) / Syntax & Programs / Duplex communication on: February 02, 2009, 08:29:55 pm
I have been looking into duplicating a laser tag protocol on the Arduino.  One thing I am having trouble with is the duplex nature of needing to emit over IR while sensing and reading incoming IR.  Is this a possibility with the Arduino?  The IR data is based on pulse codes and I have read about delay and how it is better to use millis for timing delays.  However the pulses are on the order of 600 microseconds.  I have thought through how to emit IR and how to read IR but not exactly how to do both simultaneously.

Looking for any ideas or examples for this type of thing.  Can serial communications drive 0 to 5 volts on a pin while reading at the same time?
6  Forum 2005-2010 (read only) / Interfacing / Re: Large Graphic LCD/T6963 or Sparkfun Serial on: January 25, 2010, 03:53:15 pm
True, re:glcd lines and characters.  I haven't used the library though and didn't know if it handled line wrapping of text when using a custom font.

I was hoping for an easy way to get it working. smiley
7  Forum 2005-2010 (read only) / Interfacing / Large Graphic LCD/T6963 or Sparkfun Serial on: January 25, 2010, 03:24:00 pm
I am interested in finding a large graphic lcd to use in a project.  All of the 128x64 are a bit small to fit much text on.  I did see there is a setfont function but it wasn't clear if that will actually increased the number of characters per row and the screens are small anyway.

I've looked at the Sparkfun 160x128 screen but saw a few comments on the Sparkfun forum mentioning that the serial backpack was not well designed and may in fact have a lot of bugs.  I'm not interested in doing a lot of complicated stuff with it, mostly text and probably some simple shapes.  Does anyone have any experience with this Sparkfun GLCD?

I've also seen that there is a T6963 library available, but not much documentation on it.  Has anyone worked much with these chips?

Seems like the most common is the 128x64 GLCD, just hoping I could get something working that is a bit larger.

Thanks for the replies...
8  Forum 2005-2010 (read only) / Exhibition / Re: Media Player Classic Info LCD on: October 19, 2009, 01:21:59 pm
Would anyone happen to have a valid link to the zip file referenced in this thread?
9  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: My Super Surprise box. on: February 03, 2010, 09:05:50 am
I bought an Electronics Grab Bag-Large from Surplus Shed (http://www.surplusshed.com/pages/item/egb3.html).  It is pretty expensive though ($50), but shipping is only $5.  I got a ton of stuff.  Not sure if I'll be able to use it all though.  I probably got 5 or 7 nice toggle switches that would have run $4 or $5 new.  Some neat PCB mounted push switches with led indicators.  And a bunch of 1% resistors in a few values.  By a bunch I mean probably 3,000.  There were some large caps a bunch of fuses, some header, ribbon cable and what look to be a few 60V power supplies.  There were also a few circuit boards that do video overlay text (I'm guessing based on the chips on them).  It looks like there is a RTC IC on one.  Then there was one large electronic item and I have no idea what that is.

I'll try to post some pics later today.  I probably got my money's worth.
10  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Custom Enclosures and Materials on: January 29, 2010, 09:22:57 pm
koyaanisqatsi - Very nice.  I'd like to do one in that fashion some day.  It looks like the sheet metal is the same thickness as the angle pieces?  I guess there is no reason an enclosure would necessarily need a flush face.

How do you make your labels/markings?  They look very nice as well.
11  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Custom Enclosures and Materials on: January 29, 2010, 05:55:26 pm
cr0sh2 - definitely like the ideas on soldering together a case.  Sounds challenging.  I actually did pick up a nibbling cutter from Harbor Freight just the other day, thinking I would try it out on a panel.

One question though regarding cutting metal.  I would just have aviation snips to cut it, nothing like a big sheering machine.  Is there an easy way to clean up a cut from snips or is there another method?
12  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Custom Enclosures and Materials on: January 29, 2010, 03:36:30 pm
Thanks for the info.  For the acrylic do you just fasten it together with adhesive?

I had wondered how hard it would be to work with the metals.  I saw that a brake would be useful.  Although I had not though of the usefulness of the flat pliers.

I'll check out the enclosures link, but I think it will be too expensive for the size I am looking for in general.
13  Forum 2005-2010 (read only) / Frequently-Asked Questions / Custom Enclosures and Materials on: January 29, 2010, 08:47:03 am
I've got a prototype I've been working on and made a simple case for it out of plywood and hardboard.  It turned out ok, but I'd like a much more professional looking case for the finished project.  I've been thinking about different materials but have not tried making a case from anything else yet.

I have switches that would be much easier to mount in a sheet metal top panel.  I'd like to keep cost low, so wood is good.  I thought about using aluminum sheet and angle bar with blind rivets to build something.

Does anyone have some good resources or ideas and experience building their own enclosures?  What materials have you liked working with best?  I have access to general shop tools like table saw/drill press, band saw.

Ideally I'd like to figure out a process with materials to build fair sized enclosures such as 8x11x3 inches.

Thanks for your replies!
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