Error With Arduino Uno R3 from Uno smt

Other Hardware 3rd Party Boards
1

I am doing a project involving an adafruit E-ink display and everything is working great when I was using the smd. The display worked and I was able to make adjustments to display images that I made and it was all fun. :slight_smile:

The issue is when I use the Arduino Uno R3, it is necessary for me to use it as well but it doesn't work. There is an error that says:
avrdude: ser_open(): can't open device "/dev/cu.usbmodem1411": No such file or directory
ioctl("TIOCMGET"): Inappropriate ioctl for device
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

I really thought that they would work without any problems since they are somewhat the same right? Am I wrong?

Any guidance on this is highly appreciated. I am fairly new to Arduino so thanks for your time!

2

Have you selected the right serial port? If it's like Windows, the IDE will remember the last used serial port, even if it no longer is present (because it's a different board - different enough that the OS can tell them apart)

3

Im using a mac, and have not changed anything. I just literally moved the pins from one arduino to the other, and use a usb to connect it to the mac. How can I check this?

4

Tools -> port

5

oh wow, thanks it worked. lol I never had to go and change anything there before.

6

Every time you change what board is plugged into your computer, you will need to check that, especially if you don't restart the IDE between board changes.