I recently bought an arduino uno and when I plugged it into my computer, both the on LED and the L LED turned on. I am using mac os x version 10.7.5. My computer doesn't recognize the arduino as a modem and i get no notifications when I plug it in . Nothing happens when I press reset, either. When I tried to upload the blink sketch, the TX and RX lights didn't flash or anything, and I get this from avrdude in orange:
avrdude: Version 5.11, compiled on Sep 2 2011 at 18:52:52
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "Users/XXXX/Desktop/Arduino.app/Contents/Resources/Java/hardware/tools/avr/etc/avrdude.conf"
User configuration file is "/Users/XXXX/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/tty.usbmodem621
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: Send: 0 [30] [20]
avrdude: Send: 0 [30] [20]
avrdude: Send: 0 [30] [20]
avrdude: ser_recv(): programmer is not responding
avrdude: stk500_recv(): programmer is not responding
avrdude done. Thank you.
I am new to this community and programming in general, so i replaced the name of my computer in the avrdude code with XXXX. Sorry if that was the wrong thing to do.
Thank you in advance for your time and help.
You won't, this is a Mac not a PC.
The error message says the arduino is not responding. Do you see the modem show up in the tools menu? If not doing anything else is a waste of time.
Have you opens up the network preferences?
What does USB prober tell you?
the modem does show up in tools. I have opened up network preferences but nothing shows up. What i meant by notifications is I wasnt told to open up network preferences as the getting started guide told me was going to happen.
So that means the Mac is seeing it. The opening up of system preferences only happens (if at all) the first time you plug it in. Ever after that there is no response from simply plugging it in.
Have you selected it in the tools menu?
Can you download sketches in the normal way?
i am out of jumper wires for now, but i recently ordered a 40-pack, so i should be able to do that soon. i have just standard electrical wire for now, along with wire cutters/strippers. will that work?
ok so i am trying out the loop back test now. this may seem like an incredibly stupid question but which ground do i connect reset to? sorry like i said im new to this
how would I reflash the 8u2/16u2 firmware? would i need to buy anything to do so? Also i bought it from radio shack so do you think they had anything to do with it being broken? The package was opened but they claimed it wasnt a returned item but you never know.