New USB Ultimate GPS not receiving data

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pieperml
 
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New USB Ultimate GPS not receiving data

Post by pieperml »

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?
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adafruit_support_carter
 
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Re: New USB Ultimate GPS not receiving data

Post by adafruit_support_carter »

Based on the FIX LED rate, it seems like it's getting a fix.

Have you verified that /dev/ttyUSB0 is the correct port?

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pieperml
 
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Re: New USB Ultimate GPS not receiving data

Post by pieperml »

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.

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Re: New USB Ultimate GPS not receiving data

Post by adafruit_support_carter »

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:

Code: Select all

stty -F /dev/ttyUSB0 -a
It should be on the first line of text. If it's not 9600 baud, try setting that using:

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stty -F /dev/ttyUSB0 9600

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pieperml
 
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Re: New USB Ultimate GPS not receiving data

Post by pieperml »

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.

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