Show Posts
Pages: 1 ... 15 16 [17] 18 19
241  Using Arduino / Installation & Troubleshooting / Re: Arduino Mega 2560 REV3 on: March 25, 2012, 01:08:29 am
I would take the mega back to Radio Shack - it's not a rev 3 board if it's missing the two pins.  I won't voice my opinion as to how the wrong board ended up the box...
242  Using Arduino / General Electronics / Re: Calculating led resistance? on: March 21, 2012, 04:09:32 pm
First of all, how many do you plan to use?  Then you need to decide what voltage you want to power them from.  Each one needs 2.2V, but the total voltage you will need to provide to them depends on whether you wire them in parallel, series, or a combination of the two.

This page http://led.linear1.org/led.wiz is what I use to design my led layouts.

Let us know more about how you want to hook them up, and we can provide more specific information.
243  Using Arduino / Installation & Troubleshooting / Re: Most peculiar thing about MEGA2560 that YOU WILL ALL WANT TO READ!!!! on: March 21, 2012, 02:49:44 pm
Is your system up to date on all updates?  There were some updates recently, including an EFI update.  You can also try resetting the SMC http://support.apple.com/kb/HT3964
Here is some info on USB troubleshooting: http://support.apple.com/kb/HT1151

The fact that it did not work in the new user account would normally indicate that it's a system-wide issue.  However, the fact that it works in the Parallels install throws a kink into that.
It's a bit of a long shot, but you could also try resetting disk permissions: http://support.apple.com/kb/HT1452
244  Using Arduino / Project Guidance / Re: Starting Arduino... Help needed on: March 20, 2012, 12:38:07 am
Well in the Piezoresistive effect page it does say:-
Quote
This section's factual accuracy is disputed.

The only thing that is disputed is whether metals are subject to the piezoresistive effect or not.
Reading the entire discussion, including the linked pages, results in a much more informed opinion.
245  Using Arduino / Installation & Troubleshooting / Re: help please... fustraded cant complile on my arduino uno or boarduino on: March 18, 2012, 11:41:22 pm
Quit the IDE.  Unplug EVERYTHING from the board.  Hook the usb cable back up, load the IDE, and try again.

If that fails, try pressing the RESET button just before clicking on UPLOAD.
246  Using Arduino / Installation & Troubleshooting / Re: Most peculiar thing about MEGA2560 that YOU WILL ALL WANT TO READ!!!! on: March 18, 2012, 11:31:14 pm
There is nothing wrong with the bootloader since it works in the Parallels install of Windows.

Create a new user on the Mac, install the Arduino IDE in that account, and try uploading. 
This will tell you if the problem is related to the original user profile, or if it's a system-wide issue.

Also, the Mac can be particular regarding which usb port you are using.  Are you connecting to a port
on the keyboard, or on the CPU itself?
247  Using Arduino / Installation & Troubleshooting / Re: Most peculiar thing about MEGA2560 that YOU WILL ALL WANT TO READ!!!! on: March 18, 2012, 02:48:39 pm
Go here: /Users/<USERNAME>/Library/Arduino/preferences.txt, delete the preferences file, reboot, and try again.
248  Using Arduino / Project Guidance / Re: Please help: Pins are not functioning! on: March 17, 2012, 05:03:19 pm
Can you please post the code that you are using?
249  Using Arduino / Project Guidance / Re: Tinkerkit relay on: March 16, 2012, 09:19:22 pm
The middle pin on the Tinkerkit connector is the signal pin, that would hook up to the digital pin that you want to use on the Arduino.  The Tinkerkit relay is a module that has the necessary transistor for switching it, as well as status LED's.  Just hook the + and - pins up to 5V and ground, and the middle pin the digital output pin that you want to use.
250  Using Arduino / Installation & Troubleshooting / Re: Most peculiar thing about MEGA2560 that YOU WILL ALL WANT TO READ!!!! on: March 16, 2012, 08:51:16 pm
My Mega2560 works just fine on my Mac with Lion.

Take a look here : http://arduino.cc/hu/Guide/MacOSX particularly sections 4 and 8, and see if that helps.
251  Using Arduino / Installation & Troubleshooting / Re: Unable to add library on: March 13, 2012, 05:03:48 pm
Did you extract the Morse folder from the zip file, then copy the Morse folder to the Libraries folder?

My sketch folder is Documents -> Arduino.  Then I have Libraries, so the the full path is Documents -> Arduino -> Libraries -> Morse.

Is that what yours looks like?



252  Using Arduino / Installation & Troubleshooting / Re: Cannot Open arduino_test.pde on MAC OSX 10.5.8 on: March 13, 2012, 04:53:07 pm
Definitely a weird file structure.  The mac Arduino download is a zip file with just the Arduino application inside that should be dragged into the applications folder.

253  Using Arduino / Installation & Troubleshooting / Re: Pardon my ignorance on: March 13, 2012, 01:44:30 am
Worked fine on OS X Lion using 1.0 for me as well.
254  Using Arduino / Project Guidance / Re: Wi-fi linked coffee jar on: March 12, 2012, 08:00:22 pm
I think that leaves your only option as using a weight-related sensing setup.
255  Using Arduino / Installation & Troubleshooting / Re: Arduino IDE - screen issues on: March 12, 2012, 07:30:10 pm
That could be a lack of resources issue.  Have you rebooted since this happened?
Pages: 1 ... 15 16 [17] 18 19