Hello, I received my Uno R3 today and did a few simple starter projects (blinking LED and such) no problem while having the Uno powered through my USB on my computer. After completing a few projects I wanted to move away from my computer and take my Uno with me to show off my AMAZING blinking LED to some friends. I had purchased a kit through Adafuit which came with a 9v battery clip (9V battery clip with 5.5mm/2.1mm plug : ID 80 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits). When I plug the clip into the barrel jack I get nothing. Even with everything disconnected from the Uno I get no power lights on the board.
I have tried to look up answers and everything refers to using the Vin pin and various other methods but I would really like to be able to power the Uno from the barrel jack since that is what it is there for and I believe that one 9v should be enough power to at least get the board to show an on status light!
I feel rather foolish that I am just missing something....
Just to state again for the record in case anyone is to ask:
- I have a brand new Uno R3
- I get NO power lights on the Uno R3 when using the above mentioned battery clip with 1 fresh 9v battery; even with nothing connected to the board
- The Uno is disconnected from the USB and does have a program loaded on it ("Blink" from example programs)
- I have tried multiple batteries, disconnecting and reconnecting the power source, and reloading the program
If I am mistaken about the use of the barrel jack please let me know!
Also would someone be able to answer can you power the Uno by plugging the USB adapter into a phone charger?
Thanks!