Yes, there must be an issue with my computer. Because IDE was not finding the com port before, and now, all I get is "avrdude: stk500_getsync(): not in sync: resp=0x30".
I have tried many things, once again, unplugging, replugging the usb. Tried plugging it into different ports. Tried uninstaling/reinstalling the driver. Tried restarting the computer with and without the usb attached to the uno. Tried uploading various sketches. Tried unplugging other usb devices. I have restarted the computer 4 times I've spent several hours on this now. Can someone please help me diagnose what is causing this error.
Thank you.
Stephen
I had this problem yesterday. Make sure you don't have a wire connected to pin 0 or it might do this while trying to upload. Some other possible causes:
Thanks, but none of the easy fixes work for me.
I have used a bluetooth module connected to 0&1 before but that wasnt the problem. I think I fixed it though.
I changecd the port number for the arduino to 1 by going into device manager, selecting the port named arduino, rt click for properties, under port settings tab select Advanced, theres a drop down menu for port number. It gives a listof 256 ports 1-256. Arduino was on 3, 2 was the only one that showed in use, so I selected port 1. Now dev. man. shows ard on com1, and I can select Com1 on the ide, now the ard communicates. Wish I understood the com system better.
Stephen