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I finally got it working. Agreed its an older version, we are a little limited due to Vendor older product.

The solution was :

(1) Update to Ubuntu kernel 5.4.0-150-generic
(2) sudo apt-get update
(3) sudo apt-get install linux-modules-extra-5.4.0-150-generic

Then I plugged in the USB GPS device, it found it, mounted /dev/ttyUSB0 and off it went.

Seems even though I was running 5.4.0-84-generic previously, it seems the -84 version it wasnt quite good enough to handle the USB serial properly.

Thanks everyone for your help.

Edit :

If you want to run the identical python code on a Rapsberry Pi 4 B ( because the powers that be possibly wont let you upgrade your linux kernel ) then for a Raspberry Pi 4 B with a kernel 6.1.0-rpi7-rpi-v8 and with all the latest Rapsberry Pi 4 B updates ( as at 14/01/2024 ) installed from inside the Rapsberry Pi 4 B - once you plug in the same GlobalSat BU-353N5 USB GPS, it accesses the ttyUSB0 port ( but make sure the pyserial python package is installed first! ), and then it just works. Hint - if you enable the rapsberry pi as an access point, you will have a wifi-enabled GPS unit that can be used for many uses if wired or other connectivity issues stop using existing hardware for GPS use.

import serial
from decimal import Decimal

ser = serial.Serial('/dev/ttyUSB0',4800,timeout=5)

while 1:
    line = ser.readline().decode()
        print(line)
        break

I finally got it working. Agreed its an older version, we are a little limited due to Vendor older product.

The solution was :

(1) Update to Ubuntu kernel 5.4.0-150-generic
(2) sudo apt-get update
(3) sudo apt-get install linux-modules-extra-5.4.0-150-generic

Then I plugged in the USB GPS device, it found it, mounted /dev/ttyUSB0 and off it went.

Seems even though I was running 5.4.0-84-generic previously, it seems the -84 version it wasnt quite good enough to handle the USB serial properly.

Thanks everyone for your help.

Edit :

If you want to run the identical python code on a Rapsberry Pi 4 B ( because the powers that be possibly wont let you upgrade your linux kernel ) then for a Raspberry Pi 4 B with a kernel 6.1.0-rpi7-rpi-v8 and with all the latest Rapsberry Pi 4 B updates ( as at 14/01/2024 ) installed from inside the Rapsberry Pi 4 B - once you plug in the same GlobalSat BU-353N5 USB GPS, it accesses the ttyUSB0 port ( but make sure the pyserial python package is installed first! ), and then it just works. Hint - if you enable the rapsberry pi as an access point, you will have a wifi-enabled GPS unit that can be used for many uses if wired or other connectivity issues stop using existing hardware for GPS use.

import serial
from decimal import Decimal

ser = serial.Serial('/dev/ttyUSB0',4800,timeout=5)

while 1:
    line = ser.readline().decode()
    print(line)
    break

I finally got it working. Agreed its an older version, we are a little limited due to Vendor older product.

The solution was :

(1) Update to Ubuntu kernel 5.4.0-150-generic
(2) sudo apt-get update
(3) sudo apt-get install linux-modules-extra-5.4.0-150-generic

Then I plugged in the USB GPS device, it found it, mounted /dev/ttyUSB0 and off it went.

Seems even though I was running 5.4.0-84-generic previously, it seems the -84 version it wasnt quite good enough to handle the USB serial properly.

Thanks everyone for your help.

Edit :

If you want to run the identical python code on a Rapsberry Pi 4 B ( because the powers that be possibly wont let you upgrade your linux kernel ) then for a Raspberry Pi 4 B with a kernel 6.1.0-rpi7-rpi-v8 and with all the latest pi updates installed ( as at 14/01/2024 ) , once you plug in the same GlobalSat BU-353N5 USB GPS, it accesses the ttyUSB0 port ( make sure you install pyserial python package first ), and it just works.

I finally got it working. Agreed its an older version, we are a little limited due to Vendor older product.

The solution was :

(1) Update to Ubuntu kernel 5.4.0-150-generic
(2) sudo apt-get update
(3) sudo apt-get install linux-modules-extra-5.4.0-150-generic

Then I plugged in the USB GPS device, it found it, mounted /dev/ttyUSB0 and off it went.

Seems even though I was running 5.4.0-84-generic previously, it seems the -84 version it wasnt quite good enough to handle the USB serial properly.

Thanks everyone for your help.

Edit :

If you want to run the identical python code on a Rapsberry Pi 4 B ( because the powers that be possibly wont let you upgrade your linux kernel ) then for a Raspberry Pi 4 B with a kernel 6.1.0-rpi7-rpi-v8 and with all the latest Rapsberry Pi 4 B updates ( as at 14/01/2024 ) installed from inside the Rapsberry Pi 4 B - once you plug in the same GlobalSat BU-353N5 USB GPS, it accesses the ttyUSB0 port ( but make sure the pyserial python package is installed first! ), and then it just works. Hint - if you enable the rapsberry pi as an access point, you will have a wifi-enabled GPS unit that can be used for many uses if wired or other connectivity issues stop using existing hardware for GPS use.

import serial
from decimal import Decimal

ser = serial.Serial('/dev/ttyUSB0',4800,timeout=5)

while 1:
    line = ser.readline().decode()
        print(line)
        break

I finally got it working. Agreed its an older version, we are a little limited due to Vendor older product.

The solution was :

(1) Update to Ubuntu kernel 5.4.0-150-generic
(2) sudo apt-get update
(3) sudo apt-get install linux-modules-extra-5.4.0-150-generic

Then I plugged in the USB GPS device, it found it, mounted /dev/ttyUSB0 and off it went.

Seems even though I was running 5.4.0-84-generic previously, it seems the -84 version it wasnt quite good enough to handle the USB serial properly.

Thanks everyone for your help.

I finally got it working. Agreed its an older version, we are a little limited due to Vendor older product.

The solution was :

(1) Update to Ubuntu kernel 5.4.0-150-generic
(2) sudo apt-get update
(3) sudo apt-get install linux-modules-extra-5.4.0-150-generic

Then I plugged in the USB GPS device, it found it, mounted /dev/ttyUSB0 and off it went.

Seems even though I was running 5.4.0-84-generic previously, it seems the -84 version it wasnt quite good enough to handle the USB serial properly.

Thanks everyone for your help.

Edit :

If you want to run the identical python code on a Rapsberry Pi 4 B ( because the powers that be possibly wont let you upgrade your linux kernel ) then for a Raspberry Pi 4 B with a kernel 6.1.0-rpi7-rpi-v8 and with all the latest pi updates installed ( as at 14/01/2024 ) , once you plug in the same GlobalSat BU-353N5 USB GPS, it accesses the ttyUSB0 port ( make sure you install pyserial python package first ), and it just works.