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Topic: Unresponding Arduino (Read 1 time) previous topic - next topic

seanz2003

Power the arduino (just the arduino, remove everything else that might be plugged into it) by connecting an external source(7-12v) to the barrel jack. Does it turn on? If it does, what is the voltage at the 5v pin? 
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I tried doing it but unfortunately my computer doesn't recognize the Arduino...
make sure you have the right drivers installed. You may even try reinstalling the IDE software all-together. If that doesn't work, look into DFU mode for the USB chip. You might try simply resetting it before re-uploading the firmware.

Arduino99

Did you install the driver for it on the computer to recognize the arduino?

KobiSexy


I've been doing electronics for many years, but trying to troubleshoot a board
with a bunch of tiny tiny surface mount devices is probably more trouble than
I'd like to go through myself [for a $30 board].

Look, the price of this little board in Israel (where I live) is very expensive compared to the price in USA or other countries.
For me it's worth to fix it, and I appreciate the money even if it's 10$ board, I'll do anything to fix this.
This is my attitude to this and I see that yours is totally opposite.
If you don't want to help for 30$ board, I don't make you doing it...
Thank you anyway.


Power the arduino (just the arduino, remove everything else that might be plugged into it) by connecting an external source(7-12v) to the barrel jack. Does it turn on? If it does, what is the voltage at the 5v pin? 
Quote
I tried doing it but unfortunately my computer doesn't recognize the Arduino...
make sure you have the right drivers installed. You may even try reinstalling the IDE software all-together. If that doesn't work, look into DFU mode for the USB chip. You might try simply resetting it before re-uploading the firmware.

I turn the board on by connectiong into Vin input 5V fron 7805 from another board.
I do have the right drivers, you ,misunderstood that it was working till I did the huge mistake of connecting 5V from 7805 to 5V output on the Arduino board.
Do you have any idea fixing it?
I love your idea of DFU mode, please guide me how to do it.

Did you install the driver for it on the computer to recognize the arduino?

Yes, I did. Everything went great untill I connect 5V from 7805 from another board to 5V input on the Arduino to turn it on.
Since that accident my computer can't recognize my Arduino.
Do you have the solution?

seanz2003

#13
Dec 10, 2012, 11:59 pm Last Edit: Dec 11, 2012, 12:01 am by seanz2003 Reason: 1
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I turn the board on by connecting into Vin input 5V fron 7805 from another board.

This does nothing for trying to see if the onboard regulator is functional, and does not answer my questions:
(#1)what is the voltage at the 5v pin?  
Now, if you do not have a 2.1mm plug that's a different issue, but (#2) what are you powering the 7805 with, and (#3) what is the measured voltage output of the 7805?
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5V from 7805 from another board to 5V input
If everything is connected properly and operating normally, this shouldn't have caused a problem. You can feed 5v (from a well-regulated source) directly to the 5volt rail, I do it all the time.
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Do you have any idea fixing it?

Google does...  "Arduino DFU mode"

KobiSexy


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I turn the board on by connecting into Vin input 5V fron 7805 from another board.

This does nothing for trying to see if the onboard regulator is functional, and does not answer my questions:
(#1)what is the voltage at the 5v pin?  4.2v
Now, if you do not have a 2.1mm plug that's a different issue, but (#2) what are you powering the 7805 with? 12v ADAPTER and (#3) what is the measured voltage output of the 7805? 5v
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5V from 7805 from another board to 5V input
If everything is connected properly and operating normally, this shouldn't have caused a problem. You can feed 5v (from a well-regulated source) directly to the 5volt rail, I do it all the time.
Quote
Do you have any idea fixing it?

Google does...  "Arduino DFU mode"
OK

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