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Arduino Uno -Ghost
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Arduino Uno -Ghost

by bobbybrand on Wed Mar 05, 2014 10:27 am

Hi,

I purchased a Arduino Uno kit on 8-1-2014. After a lot or theory and reading about it. I finally find the time to work with it. This week i started a new project, my second. And I believer that there is a ghost in my Arduino...
When i setup my arduino with all the wires and the inputs and outputs in my computer and breadboard, it all looks perfectly fine. But then when i come close with my finger, the input starts to work, the button. I do not touch anything, but i just come close with my finger.
I happend twice now..
Here I have 2 videos that you can see what i mean.
http://www.youtube.com/watch?v=zFpeg8PeI74&feature=youtu.be
http://www.youtube.com/watch?v=GG1vmbETCjM

Now i borrowed my friends Arduino and it works fine!
What can i do with this? Is there any possibility that i could send it back for a replacement?

Thank you very much
bobbybrand
 
Posts: 5
Joined: Tue Mar 04, 2014 9:58 pm

Re: Arduino Uno -Ghost

by adafruit_support_bill on Wed Mar 05, 2014 1:15 pm

There are a few possible explanations. Bad ground, dodgy connection, missing pullups, wrong pin-mode.

Post a still photo clearly showing all the connections.
And also post your code.

adafruit_support_bill
 
Posts: 81542
Joined: Sat Feb 07, 2009 10:11 am

Re: Arduino Uno -Ghost

by adafruit_support_rick on Wed Mar 05, 2014 1:19 pm

I think you probably have a bad ground connection. Try a different jumper wire and a different breadboard socket.

adafruit_support_rick
 
Posts: 35095
Joined: Tue Mar 15, 2011 11:42 am
Location: Buffalo, NY

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