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1  Using Arduino / General Electronics / Re: is a USB charger OK to use as power source - w/o regulators? on: April 11, 2014, 09:37:42 pm
Generally no.  But without looking at the output you can't tell for sure.

Assuming it is a USB power supply and not a true battery charger circuit, it should be outputting voltages within the USB spec.

Smoothing caps can't hurt.
2  Using Arduino / Programming Questions / Re: make http post on: April 11, 2014, 09:30:31 pm
Since your sub-thread appears to have nothing to do with the original thread, maybe you should click the "report to moderator" button on your initial post.  Then ask to have the topic split so you can rename it to something more appropriate.  Like "GET requests with http [SOLVED]"
3  Products / Arduino Yún / Re: Issues with Yun + I2C on: April 11, 2014, 09:26:10 pm
I'm having quite the same issue with a no name "MPU-5060 type" sensor.
How about a link to the hardware you are actually using.
4  Using Arduino / Motors, Mechanics, and Power / Re: Servo Motor problem on: April 08, 2014, 06:56:34 pm
How much current does the motor draw?
5  Using Arduino / Programming Questions / Re: make http post on: April 08, 2014, 04:37:24 pm
Now I have to figure out how to close an existing connection before I open one...
client.stop();
6  Using Arduino / Programming Questions / Re: make http post on: April 08, 2014, 09:40:37 am
Funny to see I am trying to do the same thing and have the same issues.
No you aren't.  The original thread was about POST requests and you are doing a GET request.

Please use [code][/code] tags when posting code.

You shouldn't need 
Code:
client.println("Host: 192.168.1.140");
since you aren't connecting to a virtual host.

It does not work.
What does the server's access and error logs say?
7  Using Arduino / Installation & Troubleshooting / Re: How to reset the serial ports on a Mac ? on: April 06, 2014, 06:25:31 pm
Is it normal that the "ls -las | grep usb" command returns absolutely nothing, even with at least one busy serial port ?
I'm not sure what the intent of that command was.

I'd recommend what I explained in my post:
"lsof | grep usb"
which will list all open serial ports (devices are given file handles, which is why the list of open files command works)
 
or

"ls -l /dev/ | grep usb"

Which will tell you if an active serial port is available.
8  Using Arduino / Installation & Troubleshooting / Re: Blinking LED sketch to work on Arduino DUE on: April 05, 2014, 12:53:30 pm
It seems I got a problem in my Arduino DUE.
You haven't stated the problem.

I got the following message on Serial Monitor:
To avoid confusion:  That is not the serial monitor.  That is the output console.  The serial monitor is different and must be opened separately.

Verify successful
Set boot flash true
CPU reset.
This is not an error.

HELP ME! What should I do? Can you ship another one to me?
This is not a customer service support forum.  If you want a return, you should contact the seller directly.
9  Using Arduino / Installation & Troubleshooting / Re: Analog input, different values on pins 14 and 15 on: April 05, 2014, 12:47:55 pm
Take your divider out.  What happens when connected to 0V and 5V?
10  Using Arduino / Installation & Troubleshooting / Re: How to reset the serial ports on a Mac ? on: April 05, 2014, 12:44:25 pm
If you're getting "serial port in use" when this occurs, it is probably because avrdude is still holding the port open.

Here's a couple of things to check if that's the error you are getting:
http://www.baldengineer.com/blog/2012/10/08/arduino-fixing-serial-port-in-use/
11  Using Arduino / Installation & Troubleshooting / Re: Reset button doesn't work on: April 04, 2014, 12:10:20 am
On the broken one I have no connection between the contacts when I push the reset button
You found the problem.

Is button broken? How can I fix it?
Yes.

Either the button needs to be replaced, the button isn't soldered correctly, or there is a bad trace on the PCB.
12  Using Arduino / Installation & Troubleshooting / Re: How to reset the serial ports on a Mac ? on: April 03, 2014, 10:43:12 pm
What do you mean by "bad transmission"?
13  Using Arduino / Installation & Troubleshooting / Re: Error Message On Mac OS X on: April 03, 2014, 10:42:18 pm
Hey. I just got my Arduino Uno.  I downloaded the Arduino IDE onto my Mac and when I try and run a sketch I get the error message:
avrdude: stk500_recv(): programmer is not responding
What serial port are you selecting in the Serial Port menu?  (Hint, "bluetooth" is not correct).

Gently pry the chip out out of its seat rotate 180 and replace.
Please do not suggest this.
14  Using Arduino / Installation & Troubleshooting / Re: Reset button doesn't work on: April 03, 2014, 10:41:11 pm
RESET starts the program over.  It does not erase it.
15  Using Arduino / Installation & Troubleshooting / Re: Arduino Uno R3 With Mac OS X 10.9 Mavericks Not Detected/ No Serial USB on: April 03, 2014, 10:39:36 pm
Does the Arduino show up in "System Information" under USB?
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