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3166  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: whats the point? on: December 01, 2009, 07:38:24 pm
unlike pic or avr, *which arduino uses an ATMega*, the software is about a TON easier to deal with (no endless pages of ASM), and it also provides a common form factor (electrically) so everything we do can be done by anyone else with an arduino fairly easily

add in no programmer, excellent community and cross platform support (still waiting for linux port there microchip) and a very low entry barrier and you will be saying "why any other way"

I haven't touched my pic stuff since I got a arduino
3167  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Arduino board minus the power supply-just battery? on: December 01, 2009, 09:15:00 pm
lol nevermind
3168  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Arduino board minus the power supply-just battery? on: December 01, 2009, 08:44:10 pm
is this something that could be solar recharged?
3169  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Searching on: November 30, 2009, 05:17:16 pm
the forums are acting bad today, when they are working well the search does too

and its not THAT bad (when it works) but you will have better luck with google, and if your lazy the homepage search box is linked to google
3170  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Have a Question regarding resistors and placement on: November 30, 2009, 11:02:05 am
Yes the resistor can go on either side, its restricting the amount of current that is flowing tru the whole circuit
3171  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Extremely Simple Transistor Questions on: November 20, 2009, 07:31:20 pm
well when you look at the datasheet its totally different numbers, so either the shack is retarded (im mad at them atm anyways) or those are minimum values

http://www.learn-c.com/tip120.pdf

Vce = voltage across the collector and out the emitter
Vbe = voltage across the base and the emitter
Ic    = the current that the the collector can deal with (which if you look at the datasheet is only 5 amps constant)

look at the datasheet for more info  smiley-razz
3172  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Extremely Simple Transistor Questions on: November 20, 2009, 04:57:55 pm
Here is a very brief and basic page on transistors in switching applications

http://www.technologystudent.com/elec1/transis1.htm
3173  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Guitar String Rheostat on: November 19, 2009, 08:49:17 pm
I dont have an answer for you but I do know 1 thing

1) the resistance over that length of wire is going to be very tiny

you can make a rheostat using some paper and a heavy marking of pencil graphite, but I doubt that would stand up long with guitar strings, maybe something else to think of is connecting the frets to increasing sized resistors.

(and another idea, but totally made up out of thin air, if its an electric guitar maybe use the pickups and a half wave rectifier, to turn the ac output into a 50% pulse train and time using pulse in, again totally made up, no idea if that is even possible)
3174  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Nano or Duemilanova? on: November 16, 2009, 08:54:10 pm
nano sits on a breadboard sucking up valuable space, the big models sit off to the side and you just jumper what you need over
3175  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: im new and got an idea on: November 17, 2009, 10:08:21 pm
There is this but once you add in even the cheapest arduino and a RS232 to TTL serial converter (~5 $ kit) you are costing more than the arduinoBT

the advantage is, if you decide you really like arduino your not tied into a BT board if you dont need one
3176  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: im new and got an idea on: November 17, 2009, 07:07:12 pm
If you have 4 motors on 4 wheels you already have steering by varying the speed of the motors
3177  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Using FAT with an Arduino/ Atmega328 on: November 16, 2009, 07:35:50 pm
Fat 16 seems to be too big for the 328 also, (2k isnt much to work with when looking at Fat) ufat is the most suggested solution I have seen on the forum
3178  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Can I program a mega like a mini? on: November 13, 2009, 10:01:02 pm
modern devices sells a usb <->ttl serial thingie for 12 bucks, which is half the cost of an average ftdi cable

it may not be free or even stupid cheap, but its cheaper

then you still have to worry about hooking it up, which i can tell you wire from an old floppy drive cable (or non pata ide cable) just happens to fit surface mount stuff pretty well
3179  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Input on this oscilloscope please on: November 12, 2009, 04:46:36 pm
one could argue that an arduino could be used as a logic analyzer
3180  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Input on this oscilloscope please on: November 10, 2009, 12:37:15 pm
its about 704$ more expensive than mine

Its a nice unit, but I guess my question is,...  are you in a position where you would get good use out of such a machine?

TBH I really don't use mine a whole bunch, Its darn handy when I do so I am glad I have it, but also I got it for free (with the horrible repair task of plugging the crt back in), so its not a 700$ chunk of equipment collecting dust
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