[McHUG] Mason Dixon Hamfest Update

[n3sb at qis.net]

Hi Rich;

Looking forward to seeing how you made this library. It will be nice to have
encapsulated functions like this available to folks to just drop into their own
programs.

I will have some EEPROM chips and 567 tone decoders available at the hamfest.
The EEPROM chips are useful in datalogger applications. The 567 chips are
useful in making all kinds of tone detector circuits including PL detectors,
touchtone decoders, RTTY demodulators, and CW decoders.

I've been able to try my CW decoder software on the air, using a 567 tone
decoder chip. The software works amazingly well in copying both hand-sent and
keyer-sent CW. It's also very adaptive to sending speed. I will have to try
adding an LCD library so that the Arduino talks to an LCD. Then I'll have a
stand-alone, light-weight CW decoder that can easily run all day on a couple
small flashlight batteries. 

73; Steve, N3SB

Quoting Rich Mitchell <geobra at att.net>:

> McHUGgers,
> 
> Success with making a library out of Pete's Morse generation code.  It's now
> working as an Arduino library and even has an example.  There were 3 issues
> that needed to be resolved.
> 1) the writing a library tutorial is a bit old.  It wanted you to include
> "WProgram.h" which caused errors.  Removing that include statement resolved
> that.
> 2) After you compile the library (close down and reopen the Arduino
> Integrated Development Environment), if you need to make a change, you have
> to delete the dot o (object) file for it to recompile.  If you don't, no
> change will occur.
> 3) Originally we had defined the lookup array at definition time.  With a C++
> class that was a bit tough to do so the easy solution was to define an empty
> array of the right size and fill it at constructor time.
> 
> Now for the seminar I don't want to go into creating a library, but I want to
> show how to use one if you download one from the web or want to use our
> ascii2morse.
> 
> I also have ordered a video splitter that will take the console output from
> the computer, amplify it and send it to 4 monitors.  That should get here
> Monday.  If it works okay I plan to use it at the seminar.  I have 2 LCD
> monitors and can grab a couple from the club's excess pile of CRTs (like the
> 21" and one other).  That way everyone should be able to see what we are
> doing.
> 
> 73, Rich, N3III
> 
> --
> McHUG - Physical Computing ;) 
> MicroController Ham User Group
> 
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