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241  Using Arduino / Installation & Troubleshooting / Re: Arduino UNO smells funny when power is connected to it on: June 18, 2012, 01:42:09 pm
Is it me, or does the smaller Atmega (USB controller) look like what smoked?
Is it me, or does the smaller Atmega (USB controller) look like what smoked?

It looks the same way to me.
242  Using Arduino / Programming Questions / Re: Arduino Mega Problem :( on: June 18, 2012, 01:32:01 pm
Have you verified that the baud settings on all serial devices involved are the same?
243  Using Arduino / Installation & Troubleshooting / Re: Unable to Install Arduino Uno Acer Aspire One Windows 7 on: June 17, 2012, 02:00:24 pm
Glad that you got it installed. 
244  Using Arduino / Installation & Troubleshooting / Re: Unable to Install Arduino Uno Acer Aspire One Windows 7 on: June 17, 2012, 02:23:09 am
The admin command prompt will probably open to C:\Windows\System32 - just run it right there.
245  Using Arduino / Installation & Troubleshooting / Re: Unable to Install Arduino Uno Acer Aspire One Windows 7 on: June 17, 2012, 01:54:01 am
You followed the steps exactly as stated on the Arduino site?
Are you logged in as an administrator?

If so, try booting into safe mode and doing the driver install from there.

If that fails, open up the start menu and type cmd, then right click and
select run as administrator or press Ctrl+Shift+Enter at once, and then
type sfc /scannow to check for corrupt system files.
246  Using Arduino / Installation & Troubleshooting / Re: Unable to Install Arduino Uno Acer Aspire One Windows 7 on: June 17, 2012, 01:09:27 am
It gives that message because it tried to load a driver and could not find one.  Follow those steps and your Uno will work.
247  Using Arduino / Installation & Troubleshooting / Re: Unable to Install Arduino Uno Acer Aspire One Windows 7 on: June 17, 2012, 12:53:28 am
Take a look at this http://arduino.cc/en/Guide/Windows#toc4
248  Using Arduino / Project Guidance / Re: Phidgets Temperature Sensor on: June 15, 2012, 07:23:42 pm
Take a look at this: http://www.adafruit.com/products/269

And this: http://www.ladyada.net/learn/sensors/thermocouple.html
249  Using Arduino / Programming Questions / Mega2560 settings for eXtreme Burner - SOLVED on: June 13, 2012, 03:26:28 pm
Hello,

I am trying to use eXtreme Burner as a GUI for avrdude.  I need to add the Mega2560 to the xml file of boards, and I am not sure of all the settings that I need.
As always, any help is greatly appreciated.

I found the correct settings:
      <NAME>ATmega2560</NAME>
      <FLASH>262144</FLASH>
      <EEPROM>4096</EEPROM>
      <SIG>0x0001981E</SIG>
      <PAGE>256</PAGE>
      <LFUSE layout="2">YES</LFUSE>
      <HFUSE layout="4">YES</HFUSE>
      <EFUSE layout="4">YES</EFUSE>
      <LOCK>YES</LOCK>
      <CALIB>YES</CALIB>
250  Using Arduino / General Electronics / Re: The inexpensiveness of foreign component dealers relative to US dealers. on: June 11, 2012, 12:11:54 pm
TI has always been very accommodating with my sample requests.  STM as well. In fact I just got an email that STM are sending me 4 ULN2803's that I requested yesterday.
251  Using Arduino / General Electronics / Re: The inexpensiveness of foreign component dealers relative to US dealers. on: June 11, 2012, 11:13:25 am
You have to remember tho, the cost of owning a wedsite is different than the cost of owning a store with utility bills, employees, taxes etc
probably some of that is just overhead, 2$ is ridiculous but then again its not like that many people buy that kinda stuff these days that they can lower there price and go for quantity sales

If your business model necessitates a 9900% markup then you have some serious problems.

If I can buy a part for $.02, then I KNOW that a business such as RS can buy them for even less in the quantities that they can purchase in.

There is no way to explain away the greed and essential usury.
252  Using Arduino / General Electronics / Re: The inexpensiveness of foreign component dealers relative to US dealers. on: June 11, 2012, 11:09:14 am
I think what helps a lot is that I have my own business domain, so my email is not a public email address.  In addition to that I give them detailed information on what I want to use the parts for.
253  Using Arduino / General Electronics / Re: The inexpensiveness of foreign component dealers relative to US dealers. on: June 11, 2012, 02:18:29 am
I buy virtually all my components from either eBay or Terry King's YourDuino.com.  I have only had one semi-bad experience, and that was an ENC28J60 that I ordered from a brand new seller on Ebay with zero feedback.  It never arrived.  The seller refunded my money right away, but I would have preferred the ENC28J60.

I get A LOT of my components as free samples from the manufacturers, including a couple MAX7219CNG+ that seemed to be the root of this topic.  Transistors, MOSFET's, TRIAC's, etc. all free for the asking.  Even got two of the brand new MAX44005 RGB Color, Temperature,and Infrared Proximity Sensors for free.

The best deal that I have found for general IC restocking is the IC Assortment V2 from YourDuino.com - 12 various IC's in quantities of 5 each, 10 NE555's, and 20 1N4148 diodes for $12.25.  Also got a great price on RGB LED's there.  I have mentioned this before, but the wiki that Terry provides is top-notch.

I would love to buy from a local supplier, but it's their own greed that drove me to look elsewhere.  I never begrudge someone trying to make an HONEST buck.  But trying to sell me a component that I know cost them $.20 for $2.00 is just plain robbery.
254  Using Arduino / Project Guidance / Re: Programming Colorduino with Mega2560 serial passthrough on: June 10, 2012, 02:41:44 am
Thank you clarifying that.  I edited the title of my post to reflect what I was actually doing.
255  Using Arduino / Project Guidance / Programming Colorduino with Mega2560 serial passthrough on: June 10, 2012, 01:56:09 am
I spent several days trying in vain to program my Colorduino using my Mega2560.
None of the tutorials that I found seemed to work for me.

This is what I came up with that worked right away:

Mega2560           Colorduino
-----------------------
RX0 (pin 0)  ->>  RXD
TX0 (pin 1)  ->>  TXD
RESET         ->>  DTR
5V              ->>  VDD
GND           ->>  GND

Mega2560
Reset -> 4.7uF capacitor -> 5V

When I uploaded the sketch, as soon as the size of the sketch appeared in the window, I held down the RESET switch on the Mega2560 until the upload completed.

I am now happily able to program my Colorduino using my Mega2560.
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