Arduino Serial Port Problem

What OS are you using?  Linux?  ALso what is giving you those options, the arduino IDE?

Sounds like it is either some form of Linux or a Mac.

I assume you are connecting to your Arduino using a USB interface.

If Linux run lsusb and check to see if the USB to serial device shows up (also look at the /log/messages (or equivalent) when you plug the device in).

If Mac, you can look at the system profiler under USB

https://pim.famnit.upr.si/blog/index.php?/archives/165-OS-X-equivalent-to-lsusb.html

I don't know what the library you downloaded would have changed but the first thing to check is if your OS is seeing the device.

First of all thank you for responding to my question.I am using Mac 10.6.8. and and the Arduino IDE gave me these options.

                                        -Lucas

I tried what you recomended  but could not find my arduino in the system profiler.

                                   -Lucas

You should see:

/dev/tty.usbmodem621 or /dev/tty.usbserial-A02f8e

It most likely will not say anything about Arduino...

Are you going through a USB hub or directly in?

Do you have anything connected to the Arduino (digital pins 0 and 1 are shared with the serial port)?

You may need to reinstall the USB - serial drivers:

Can't install driver on Mac OS 10.4.5

Thanks for the help.After looking at the link from the comment above, I am still confused as what I should do.Where would I find this site where I could download these drivers?Sorry if this is a stupid question!

                            -Lucas

HELLO,

not stupid question, but need to know what arduino or arduino-like board do you have. Based on this information you see what serial to USB chip your board is using so it is possible to find a workaround for the problem checked for the right drivers. I am using a Mac too and I have never had problems with Arduino but it is 90% a problem of the right driver installed on the system.

Take in account that it is very probably the your board uses the FTDI232 chip that is very common. But this information is strategical to find the right solution.

Enrico

I am using the Arduino Uno.What should I do now.Do I install the right drivers for Uno,where would I find the download page ?

                  -Lucas

Hi Lucas,

As I was supposing with the Arduino UNO no drivers are needed, accordingly with the UNO installation notes on Max. Please take a look to this link https://www.arduino.cc/en/Guide/MacOSX and double check your procedure. Then if the Max again is not able to recognize your device we can investigate the problem on the Mac settings side.

Enrico

Sorry I have not responded sooner. I tried what you recomended but it sadly didn't work.

                         -Lucas