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1  Using Arduino / Project Guidance / Re: Smaller version of Arduino Mega on: February 17, 2014, 09:54:25 am
ATmega645 IPC-SM-782\QFP14X14-64

http://www.atmel.com/devices/ATMEGA645.aspx
2  Using Arduino / Project Guidance / Re: 16-channel relay board LEDs lighting but coils not activating on: September 23, 2013, 02:24:22 pm
The relays need 12VDC to actuate.  Each relay needs  ~ 30ma to energize, so if you are trying to use all of them at once, the 12VDC supply should provide at least 500ma to the relay board.  Connecting to the NC terminal will result in power being supplied to the load while the relay is in the normal, non-energized state, so you are correct that you should be connecting to the NO terminal if you want the lightbulbs to come on when the relay is energized.
3  Using Arduino / Project Guidance / Re: Arduino Vs commercial stepper controller on: August 13, 2013, 11:23:54 am
This has been done many, many times.

Plenty of information here: https://www.google.com/search?q=arduino+cnc&oq=arduino+cnc&aqs=chrome.0.69i57j0l3j69i62.2040j0&sourceid=chrome&ie=UTF-8
4  Using Arduino / LEDs and Multiplexing / Re: Very new to arduino (first day), need sample code to at least turn on a WS2811 on: May 08, 2013, 12:22:13 am
Take a look at this:

http://bleaklow.com/2012/12/02/driving_the_ws2811_at_800khz_with_a_16mhz_avr.html
5  Using Arduino / General Electronics / Re: About different ways of soldering on: May 08, 2013, 12:13:28 am
The fact that you cannot find information about these methods on the internet should answer your question.  Do you REALLY think that something that actually WORKED would not be all over the internet?
6  Using Arduino / General Electronics / Re: Soldering station recommendations on: April 04, 2013, 12:19:06 pm
I don't see where Bob is recommending a cheap knockoff of a Hakko, I see him telling people that HAKKO irons last a long time.  The knockoff's are NOT Hakko's and will NOT last like a Hakko.  You are just throwing away your money buying a something that LOOKS like a Hakko instead of buying an actual Hakko.   Not even a real Hakko 936 performs as well as the FX-888, and since the 936 is no longer made by Hakko, the best that you can do is buy a cheap knockoff.

With all the complaints on here about people buying knockoff Arduino's, I'm rather surprised to see someone advocating purchasing a knockoff soldering station.
7  Using Arduino / General Electronics / Re: Soldering station recommendations on: April 03, 2013, 05:11:17 pm
Go with the Hakko FX-888. It's worth every penny!  I have never used a finer soldering station in my life.  Rapid heat up, great heat retention.  The FX-888 will make soldering a totally worry-free, hassle-free experience.  Avoid ALL the Hakko imitations.  The FX-888 performs far in excess of it's price point.  Nothing cheaper, and nothing at less than twice the price, will perform at even half the level of the FX-888.
8  Using Arduino / Project Guidance / Re: watering system/timer Project help on: March 22, 2013, 05:52:09 pm
Take a look at this post http://arduino.cc/forum/index.php/topic,100757.0.html
9  Using Arduino / Sensors / Re: Dht22 arduino libary ? on: March 06, 2013, 12:04:11 pm
The DHT22 has a maximum .5 Hz sampling rate - once every two seconds.  Nothing in the library can change that.
10  Using Arduino / Project Guidance / Re: need help understanding code on: March 04, 2013, 01:12:22 am
The OP not only didn't post the code, he didn't even post a link to the code - he posted a link to an article that didn't even post a link to the code until someone asked for it in comment 32 out of 36.  I think it's a grave disservice to the people on this board that freely give their time to do the OP's work and post either the code, or a link the code for him as you did, and then expect help.  Perhaps next once of us should just catch a flight to the OP's house, buy all the components that he needs, wire it all up for him, and then fly ourselves back home.

The OP has provided NOTHING necessary to even BEGIN to answer the questions that he has not even asked yet.  The OP's contribution to this thread has been ZERO.  When he was asked about the code, he simply referred back to same article that he originally mentioned - STILL refusing to even post a link to the actual code.   

The OP deserves NOTHING from this forum until he can at least form a question and post the code that he is referring to.
11  Using Arduino / Project Guidance / Re: need help understanding code on: March 04, 2013, 12:05:18 am
The link to the code was in the 4th comment from the END of the article comments.  Even though I found the link for the code, I refuse to download it to help this person.  Come on, OP, put SOME EFFORT into asking for our help.  We WILL NOT do all the work for you.  Get the code, post it here, then ask your questions.
12  Using Arduino / General Electronics / Re: Looking for better soldering iron on: February 28, 2013, 08:53:59 pm
I have been very successful at soldering bundles of ATX wires with my Hakko FX-888, but if I were planning on soldering them frequently, I would still prefer a soldering gun.
13  Using Arduino / LEDs and Multiplexing / Re: Getting started with Colorduino on: February 28, 2013, 05:58:03 pm
For starters, the rainbowduino that you linked to is NOT the same as the colorduino, and does not use the same libraries as the colorduino.
If you actually have the rainbowduino, there is lots of great info here http://www.seeedstudio.com/wiki/Rainbowduino_v3.0

As for help getting it to work, a great place to start would be to post the code that you are using with your rainbowduino.  Click the # symbol in the menu, and paste your code between the code tags.
14  Using Arduino / General Electronics / Re: Looking for better soldering iron on: February 28, 2013, 05:27:27 pm
No single soldering iron is going to work for both large masses of wires such as from the ATX power supply as well as SMT work.  For the large masses of wires, I recommend a soldering gun such as one of the Weller guns.  For SMT work, you would be much better off with a hot air rework station such as a WEP 858D+

http://www.amazon.com/858D-Station-Soldering-Display-Nozzles/dp/B009PPRJHS/ref=wl_it_dp_o_pC_S_nC?ie=UTF8&colid=2X00B9RLPPQRA&coliid=I24ICZKG1NEEQU

http://www.amazon.com/Weller-D550PK-120-volt-Professional-Soldering/dp/B00002N7S1/ref=sr_1_1?s=hi&ie=UTF8&qid=1362090290&sr=1-1&keywords=weller+soldering+gun
15  Using Arduino / Project Guidance / Re: LED driver current help please on: February 25, 2013, 01:13:49 am
I presume that you are referring to pin 5 EN - the output ENable pin.  The square wave that you see in the datasheet is simply referring to a PWM input on that pin to provide dimming control.  The EN pin is totally optional unless you plan to use PWM for dimming of the output.  In your case, I believe that you would connect the EN pin to the PWM output pin on your Arduino to vary the brightness of the LED.
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