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3136  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Deploying the arduino on: December 30, 2009, 10:24:53 am
yea you can swap chips, far as wallwarts go, depends on what you need (and I dont really know I havent bought a power adapter in years, i have a small box of them of different sizes collected over the years from dead phone machines and ect)
3137  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Deploying the arduino on: December 29, 2009, 10:20:19 pm
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1257770762/12

http://www.arduino.cc/playground/Learning/AtmegaStandalone

http://www.moderndevice.com/products/arduino-programmed-atmega328-chips

~or~
something like
http://www.moderndevice.com/products/rbbb-kit
3138  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Data persistence on: December 28, 2009, 09:25:07 pm
maybe ...

http://www.arduino.cc/en/Tutorial/Memory

http://www.arduino.cc/en/Reference/EEPROM

would be more relevant   ;D
3139  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Device Prototype on: December 22, 2009, 10:29:00 pm
LoL, I bet most of us
3140  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Device Prototype on: December 22, 2009, 09:23:25 pm
yea "its a one time deal" as in you load it on the chip once and it stays on there until you overwrite it

but not "its a one time deal" as in if you screw up the sketch you toss the chip in the waste bin, the current storage technology can handle thousands of write cycles before it wears out
3141  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: A 595 question.. (Shift Registers) on: December 21, 2009, 10:17:43 am
which was mentioned in the third post as the OP's goal

Quote
to make a 4*4 LED matrix.

so that's where our focus shifted, that's what the snippet you quoted from me was talking about and that's what we all understood
3142  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: A 595 question.. (Shift Registers) on: December 21, 2009, 09:18:35 am
latch or not, refreshing at a high enough rate so as your displaying individual dots in a pattern and it doesn't flicker while it presents the entire image to the eye
3143  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: A 595 question.. (Shift Registers) on: December 19, 2009, 01:05:18 pm
yep, but a array and a loop would make it easier
3144  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: A 595 question.. (Shift Registers) on: December 18, 2009, 11:16:00 pm
lets say you have 8 led's and you send the shift register B10000000 only 1 led is lit

if you don't write to the register again that 1 led will remain lit, so you have to refresh the "screen" fast enough to display a dot matrix image to the eye that doesn't flicker

keeping that in mind what happens when you send B11111111 to the register?

you just turned on all 8 led's at once

3145  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Random Number? on: December 20, 2009, 09:56:53 pm
yay lua

it wont take you too long to get the basics down
3146  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Resistors on: December 19, 2009, 02:56:46 pm
4.7k is good for pull up/down's
3147  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Resistors on: December 19, 2009, 01:52:44 pm
the 5v pin should be connected directly to the regulator (at least on my bare bones board it is) so whatever the regulator can safely handle ...


and the ones they sell in the store are 1/4 or 1/2 watt ones (i usually get the half watt ones)
http://www.radioshack.com/product/index.jsp?productId=2062303&filterName=Price&filterValue=%246.00+-+%249.99

Yea its not a great deal compared to anywhere else but its a point of reference, and no you wont used some of the odd sized ones a bunch, but its nice to have a selection

that ebay link you posted seems just fine for most digital stuff
3148  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Resistors on: December 19, 2009, 01:07:50 pm
every few months I get that assortment pack at radio shack, its quite useful in terms of what values it has

If nothing else its a good list to go from
3149  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Newbie - Which board do I need? on: December 17, 2009, 08:15:41 pm
yea no mcu is going to handle large loads, so as far as the arduino goes anything that suits your fancy

there are some motor shields and some relay shields, some decide to make their own interfaces (like me!) and its not super hard

as far as 1 input power source yea you can feed an arduino 12 volts, the 7805 can handle it, so you would have 1 wall connection but wired to 2 points
3150  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Is it possible to... on: December 17, 2009, 11:40:16 am
yes its possible, but one major part is how your going to connect it to the net

like wired to a pc, Ethernet, wifi BT ect
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