Hey guys!A couple months ago I bought an Arduino Uno SMD. I loaded the drivers and started programming like mad (The arduino functioned as expected). Recently I bought some XBEE series 1 Modules, and during my experimentation with these I seem to have done something horrible to my device.When I plug in the arduino to my USB port, the green power light comes on, but the "Serial Ports" menu in the IDE remains greyed out. (tools-> Serial Ports)I hopped over to the troubleshooting page (http://arduino.cc/en/Guide/Troubleshooting#toc15) and was lead to my control panel to try to change the COM port number.When I open the device manager while the arduino is plugged in I do not get a dropdown menu icon labeled "ports". I have a second (working) arduino uno , so for comparison's sake I plugged it in and, as expected, a little icon labeled "ports (COM & LPT)" appeared with a dropdown arrow. I perused the internet for a couple of hours trying to figure out what the issue is with the malfunctioning arduino and I stumbled upon a couple of possibilities:The first is that the microcontroller chip is "bad" (http://www.me.umn.edu/courses/me2011/arduino/technotes/debug/arduinodebug.html)The second is that I have somehow broken the bootloader. (I drew this conclusion from various readings)Because the chip is SMD I cannot (easily) remove & replace it to see if that is the problem. My questions for you guys are as follows:What exactly does it mean for a chip to be "Bad"? (internal melting? something else?)What do you think is wrong? andWhat can I do about it!?Cheers and thanks in advance -Tommy
I attempted the Loop-Back Test but could not complete Step 6 because the arduino is not being recognized by my computer. When I try to open the serial Monitor I get the Error "COM 4 not found", and as I mentioned before the "Serial Port" option in the IDE is greyed out so I can not change the Port #. As before, the Uno does not appear at all in the control panel. Additionally, no "unknown devices" appear in the control panel.After leaving the Uno plugged in for 5 minutes nothing on the board becomes hot. :SDo you still suspect a broken Chip?Cheers & thanks for your response -Tommy
When I plug in the malfunctioning arduino I get no sound at all from my computer. The LED labeled 'L' on the board blinks 3 times then stays off , and the "ON" Led turns and stays on. Other than that I get nothing When I plug in my working arduino I get the typical windows "device connected" sound.