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496  Using Arduino / Microcontrollers / Re: ATmega2560 @ 20MHz ? on: January 03, 2013, 08:25:48 pm
I know someone here on the forum posted a bootloader for a 20Mhz clock.  Might want to search here for that post.
497  Using Arduino / General Electronics / Re: Where I got my PCBs made on: January 03, 2013, 08:19:13 pm
Just received an order from Seeed myself, 21 days from placing the order to receiving the boards in North Carolina with the cheapest shipping option.  The boards look good, and they gave me 12 rather than the 10 I ordered.  There's no need to add the order number to your Gerbers any more, nor to e-mail them in--they now let you upload them on their web site.

I so hated emailing the files.  I think that's a good move to just upload them. 
498  Using Arduino / Microcontrollers / Re: Standalone Setup on: January 03, 2013, 11:34:06 am
Perhaps this is the case.  No matter what driver I try, I just have no luck getting it to work via the IDE on my 64 bit machine.  Not a big deal.  It's working via AVR Studio 6 and I've enjoyed learing about fuses and lock bits anyway.  Seems like I will have lots more options for chip configurations.  I got to spend some tme in the datasheet too!  :-)

I had the same problem with my Win7 x64 machine.  I found these drivers to work with my setup.

http://mightyohm.com/blog/wp-content/uploads/2010/09/avrispmkii_libusb-win32_1.2.1.0.zip - direct download

http://mightyohm.com/blog/2010/09/avrisp-mkii-libusb-drivers-for-windows-7-vista-x64/ - Web page that has the download link.

I know it has 32 in the title but it works for x64.
499  Using Arduino / Microcontrollers / Re: Just got a new Mega 2560 - full of hope, but fail :( on: January 03, 2013, 11:13:24 am
Coding Badly has a great tutorial on it.

http://arduino.cc/forum/index.php/topic,73748.0.html
500  Using Arduino / General Electronics / Re: Newbie question on designing your own 'board' instead of using wires on: January 03, 2013, 11:00:05 am
Fritzing is great for the first few PCBs while your learning.  But when you realize Fritzing is limiting your design, you will go to Eagle. 

There are dozens of tutorials for Eagle and it's actually not that hard to learn.  Eagle just has more options you can use.

I think that Sparkfun has the best tutorials for Eagle.

http://www.sparkfun.com/tutorials/108
http://www.sparkfun.com/tutorials/109
http://www.sparkfun.com/tutorials/115

IMHO, if you start out with Fritzing, it's going to make learning Eagle that much harder.  I started out using Fritzing, it's a great program, but is limiting as to what you can do with your designs.

Also, if you have specific questions about how to do something in Eagle, just ask in this forum, there are a lot of members here that have the knowledge to help.
501  Topics / Robotics / Re: What are some good servos to get started with Robotics projects? on: January 02, 2013, 02:16:02 pm
My daughter just installed two of these servos ....

I have 4 of these and they are nice servos for just a little over $3.  But be careful, Hobbyking can take a long time just to get you order in the mail.  Took 'em 3 weeks just to get it out of the warehouse for mine. 

Look through Ebay, can get good deals on multiple servos. 
502  Topics / Robotics / Re: What are some good servos to get started with Robotics projects? on: January 02, 2013, 11:37:43 am
The 9G servos are the Micro's.  Their pretty darn small but still powerful for their size.  When you pick your servos you need to find out how much weight you will be moving.  The more weight the more torque the servo needs.  With servos, like any other electronics you buy, you get what you pay for.  If you want quality, go for the Futaba and Hi-Techs.  But you really don't need to spend a ton on servos.

Analog servos are PWM controlled.  The Mega has 14 PWM outputs.  But if you get a dedicated servo controller, you can literally run dozens of servos off it. 

I prefer to design and build everything from scratch, so my advice would be to start off with a pan and tilt bracket with servos to learn the basics of getting stuff to move and the programming. 
503  Community / Exhibition / Gallery / Re: Bluetooth controlled ignitor for a spudgun (android app + arduino) on: December 31, 2012, 11:38:14 am
Very nice!  Could you post the values for C1 and K1 (I honestly don't know what K1 is).
504  Using Arduino / Audio / Re: Voice recognition question on: December 30, 2012, 11:51:05 am
Bitvoicer needs a PC connected at all times.  EasyVR needs a PC to program your commands only.  I have an EasyVR shield and it's standalone.  You just have to power the Arduino.
505  Using Arduino / Audio / Re: EasyVR Shield - can't connect in UP Flash update mode on: December 29, 2012, 10:25:58 am
We need more info.  Like, why are you putting it in "UP" mode.  The manual says you don't need to "connect" with VR Commander.  That's your first mistake. 

What, specifically, are you trying to do?

The only reason why you should be putting the shield in "UP" mode (Update) is if your installing a new version of the firmware, or uploading new sound tables to the shield.
506  Products / Arduino Due / Re: When is Due is due? on: December 26, 2012, 08:50:12 am
I think most of us use Eagle, so I would distribute the Eagle files as well.  You could try to find a script that will allow you import into Eagle, but I don't know if one even exists.
507  Using Arduino / Microcontrollers / Re: How would you go about building a stand alone atmega 2560? on: December 24, 2012, 11:41:41 pm
Quote from: westfw
You can learn a lot in the process of figuring out someone else's design.

Understood.  I am going off the schematic of the R3 Mega, but also putting my two hands in as well.

Quote from: westfw
Also, you weren't the original poster...

True, that's why I usually quote the person whom I'm speaking to.
508  Using Arduino / Microcontrollers / Re: How would you go about building a stand alone atmega 2560? on: December 24, 2012, 07:10:22 pm
What's the fun in that?  I am also here to learn. 
509  Using Arduino / Microcontrollers / Re: How would you go about building a stand alone atmega 2560? on: December 24, 2012, 04:00:44 pm
Yea, the schematic.  The package on the board is the same.  The new symbol you gave me was bigger and had the VCC and GNDs on one symbol so I had to reorganize everything.  I use the naming process to do mine as well.  Just had to line everything up in the schematic.  Like I said before, I didn't like how the traces were coming out on the board so I ripped them up and going to see if I can make it look more professional. 
510  Using Arduino / Microcontrollers / Re: How would you go about building a stand alone atmega 2560? on: December 24, 2012, 02:23:28 pm
The 2560 I was using had the IO pins and VCC/GND on separate symbols.  The one you gave me was also bigger.  It's ok, I didn't like how I had the traces ran anyway..
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