New USB Ultimate GPS not receiving data
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Please be positive and constructive with your questions and comments.
- pieperml
- Posts: 3
- Joined: Mon Oct 03, 2022 6:20 pm
New USB Ultimate GPS not receiving data
I purchased a new USB Ultimate GPS and it is not receiving any data while outside with direct view of a clear sky. I have it connected to a RPi3b. I'm getting no data when checking it directly through cat /dev/ttyUSB0. The red LED is flashing every 10-12 seconds. I followed the setup from the Adafruit Learn site. I'm posting the pictures of the connections. Any suggestions?
- adafruit_support_carter
- Posts: 29483
- Joined: Tue Nov 29, 2016 2:45 pm
Re: New USB Ultimate GPS not receiving data
Based on the FIX LED rate, it seems like it's getting a fix.
Have you verified that /dev/ttyUSB0 is the correct port?
Have you verified that /dev/ttyUSB0 is the correct port?
- pieperml
- Posts: 3
- Joined: Mon Oct 03, 2022 6:20 pm
Re: New USB Ultimate GPS not receiving data
It is the correct port - /dev/ttyUSB0, as there is only one USB connection at this time. I also verified by listing the folder when it was attached and not attached. Another bit of information is that when I try cat /dev/ttyUSB0, though I get no output, the GPS Rx and Tx LEDs flash amber.
- adafruit_support_carter
- Posts: 29483
- Joined: Tue Nov 29, 2016 2:45 pm
Re: New USB Ultimate GPS not receiving data
Does the cat command return right away when you run it? Or does it sit there with no output?
Try running the following command to see what baud rate the /dev/ttyUSB0 is set to:
It should be on the first line of text. If it's not 9600 baud, try setting that using:
Try running the following command to see what baud rate the /dev/ttyUSB0 is set to:
Code: Select all
stty -F /dev/ttyUSB0 -a
Code: Select all
stty -F /dev/ttyUSB0 9600
- pieperml
- Posts: 3
- Joined: Mon Oct 03, 2022 6:20 pm
Re: New USB Ultimate GPS not receiving data
Thank you! It was the baud rate. I'm now confident the GPS is working. Now I just need to get the data using a python script. Thanks, again.
Please be positive and constructive with your questions and comments.