i use eclipse to programm to arduino.I had to reinstall the whole package these days.

I installed the tm plugin for terminal and rxtx also.

when i try to connect to the serial port i get error that another unknown program uses the serial communication.Do you know how to solve this?

This sounds like a question that should be asked on the Eclipse forums.

You would also need to disable the trickle charge at the time of the voltage measurement, otherwise you're just going to get 14v 100% of the time.

This just seems like a really bad idea, unless the idea is to turn your arduino into slag.

Perhaps something like this would work better:
https://www.sparkfun.com/products/251

Or an infared sensor?

Ok
Go it!
Cool idea! Thx!
I think that could be the way to go...
Now just need to get my LianLi case and figure out, how to make arduino to helm me to reach the goal

An arduino can easily take temperature readings, control fans, and turn a compressor on/off.

air "jets" ?
Hmmm...doesnt know what is it... will search bout this

If you take an air compressor and force a high volume of air through a small opening, you get a "jet" of air. A really small tube (something like an IV drip line, or those straws you see on the canned air products), would work quite well at increasing air pressure I think.

I know thats an issue with LiPo batteries (one cell discharges so rapidly into another that the heat can cause the pack to burst into flame), but I didn't think it would be a problem with lead-acid batteries. I have seen many vehicles (primarily diesels) that use two batteries in parallel for starting.

Whereas the Generac generator requires a minimum of 525 CCA's which can be provided by one battery.   

My thinking is that if you have two 525 CCA rated batteries in parallel, and one fails, you still have 525 CCA worth of starting power. If you buy two batteries at different times, the chances of them failing at the same time would be fairly low (unless the failure was caused by a problem with the electrical system). I guess the one working battery would discharge into the failed one, trying to charge it, but that wouldn't really be a problem since you have a constant trickle coming from the wall when the power is on, and a constant trickle coming from the generator when its on. The second battery would not be able to discharge entirely in the short amount of time it takes for the generator to start after a power failure.

This is just my theory though, I'm not really familiar with charging systems. I'm not sure how fast the second battery would discharge into the first, or what hazard that would present.

What if you use air "jets" instead of fans? Run thin tubing to all the places that dust collects (grills, heatsinks, hard drives). You could run all the tubing into one fitting, that plugs into a small DC air compressor. It would be like automating those "air duster" cans. Turn off the intake fans, and leave the exhaust fans on, and they will suck all the agitated dust out of the system.

My gaming PC has 3x 200mm fans, and it still collects a lot of dust. I believe this is because the dust becomes statically bound to stuff it is sitting on, making it take a significant amount of air pressure to blow it off.

Well, I did post the question as to whether I could use two batteries on my generator.  It was definitely nixed by the Generac Dealer/Installers  as a potential drain on the second battery if one battery fails.

I also submitted the question to Generac via email and am waiting on a reply.

I previously posted a link to Generac dealer discussion on this issue but it was probably deleted by the mods.

I know thats an issue with LiPo batteries (one cell discharges so rapidly into another that the heat can cause the pack to burst into flame), but I didn't think it would be a problem with lead-acid batteries. I have seen many vehicles (primarily diesels) that use two batteries in parallel for starting.

My compiler hates me.

So you are saying that when Richard Stallman started GCC project which had its first release in 1987, he knew somehow that there would be  a programmer who goes by the handle 'retrolefty', and put in special code just to torment this particular person.  And after control of GCC was moved to the GCC steering committee, all of us involved, keep this special code around just to make things difficult for you personally?

Somehow, even though I've been involved with the GCC project since 1988 (except for a small stint when I was working on other compilers), I seem to have missed out on this ultra-secret 'feature'. 

Obfuscation.

I recently got a small 4KW gasoline generator for $250 at Harbor Freight. I'd like to figure out how to hack it to convert it to propane and build an Arduino control system for it. Biggest problem is to hack an electric starter on an engine that doesn't have one... Hmmmm.

Buy a starter motor for a small car and replace the pullchain with a gear?

I present to you the "amalgam scene specification error", aka the .ass error:

http://halo.wikia.com/wiki/.ass

Apparently Microsoft didn't think the error and accompanying picture were funny, so they patched it out after it hit the press.

Still can have your Big Gulp so it's not all large capacity feeding devices.

Wouldn't that exceed the 3oz fluid limit for carry-on baggage?

How many files should a library need for programs to fit and run on a freaking MCU?

Honestly, some people just can't search:

http://www.arduinodev.com/codeblocks/

WOW. Something useful actually came out of this thread. That IDE looks interesting, i'll have to check it out.

It seems like a laptop computer and an Arduino board would be a great way to pass the time on long flights, as long as it doesn't attract the wrong kind of attention. I was wondering whether anyone has tried this.

Laptop, fine. Attached to an arduino with lots of wires sticking up all over, LOL. Air Marshal to the rescue.

Lefty

Yeah, god help you if they find out its linked to "hackerspaces". They'd probably just shoot you and push you out the emergency exit.

Why not a PCB under the foam with regular tact switches lined up under each hole. Wire them up like a matrix keypad. Shouldn't need as many pins that way. Just spit-balling here.
TomJ

Or somthing like these small momentary pushbuttons:
http://www.digikey.com/product-detail/en/MSPS103C/450-1110-ND/525747

That would require less force that way, plus more room for error.