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241  Forum 2005-2010 (read only) / Bugs & Suggestions / Re: Mac IDE Annoyance on: May 15, 2009, 10:28:39 am
Check the OS X system log to see if anything is being reported there.  It appears that the running JVM is not accepting the (equivalent of) HUP or INT being sent to it.  Since it cannot shut down cleanly of its own accord, the OS rightly abandons the shutdown.

Depending on how the VM is launched by the system UI server, it may be that the Arduino JVM process proper has been disconnected from the parent somehow.
242  Forum 2005-2010 (read only) / Interfacing / Re: Advice on a CMOS cookbook on: April 05, 2009, 03:53:35 pm
Yeah, I figured a lot of the 4000-series refs would be obsolete.

Really, I need something a little less terse than the data sheets or application notes.  Though, I could get away with those if I had a reference that reminded me on the various shorthands they use in data sheets.

For example, a pin labelled "foobar" with a line over it.  I recall that we mean to say that this is triggered for the purposes of the function chart by taking it low.  Once I have that clear I can verify based on the chart and have some sort of idea what I'm doing.

(Note that I'm not really asking a specific question here, but suggesting the sorts of things I run into.)

I guess I can try and sort this out via Google.
243  Forum 2005-2010 (read only) / Interfacing / Advice on a CMOS cookbook on: April 05, 2009, 09:35:15 am
This might be a little off-topic.  Sorry about that.

I have not played with digital electronics for years, but yesterday I went to the local shop to pick up some parts for Arduino hacking.  I really like how so much of what we used to do with discrete parts can now be done in software.  However, classic techniques like serial-to-parallel shift registers and such are still handy.  I want my blinky lights!

Trouble is, like I said: out of practice.

I re-learn easily from books, so my usual technique is to grab a cookbook of some sort.

I remember Lancaster's "CMOS Cookbook" from the old days.  Is this still mostly relevant after all these years?  Still a recommendation? Any other recommendations for a "cookbook" style book from a CMOS circuit design POV?  Something aimed at the hobbyist is ok; honestly, I've forgotten the little I once knew.  I'm best now with an example circuit and some gentle reminders.  Must be my aging brain.

Thanks.
244  Forum 2005-2010 (read only) / Interfacing / Re: Detecting lightning with sensor on: April 02, 2009, 01:32:53 pm
D'oh.  Just found http://www.glacialwanderer.com/hobbyrobotics/?p=11

I thought I'd checked the Playground.  Bad developer.  No doughnut.

Feel free to add hints or horror stories.

(and this)
http://www.glacialwanderer.com/hobbyrobotics/?p=16
245  Forum 2005-2010 (read only) / Interfacing / Detecting lightning with sensor on: April 02, 2009, 01:00:45 pm
Anyone have any ideas on detecting lightning using a light (or some other) sensor I could hook up to an Arduino?

I have vague ideas of using a photodetector of some sort to trigger some behaviour.  It sounds like a hard thing to calibrate.

I know most commercial strike detectors use a radio/magnet detector, but I just need to know when there is a distant flash in an otherwise dim location.

Anyone else done this?  I'm probably reinventing the wheel, I know.

Feel free to tell me that my approach is FOS. I'm of to the local 'lectronics shop tomorrow and I'm going to pick up an assortment of stuff that I think might work.  Anything I should add to the list?
246  Forum 2005-2010 (read only) / Bar Sport / Re: Edge Timing Charts on: May 02, 2009, 09:40:44 am
I bet Gnuplot would work.  The x-axis would be your timing, and you would define several y-axes in their own 0-1 range.  I'm not that well-versed with Gnuplot, but I gather this can be done.
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