List ,
I am following this tutorial to get latitude and longitude data using
NEO6 GPS module and Py PICO to read the GPS data from the device.

I followed the code specified in this tutorial. https://microcontrollerslab.com/neo-6m-gps-module-raspberry-pi-pico-micropython/

I have installed thony IDE in my Desktop(windows PC) and run the code
after the devices all connected and using USB cable connected to my PC.

When I ran the program I am able to see the output of latitude and
longitude in the console of thony IDE. But between certain intervals of a
few seconds I am getting the latitude and longitude data ( its printing
GPS data not found ?? ) in the python console.

The satellite count from the $GGPA output showing 03 ..
and the GPS data not found repeating randomly for intervals of seconds.
Any hints why it is missing the GPS data (randomly) ??

PS:- The GPS device I placed outside my window and connected to the PC
with a USB cable from the PICO module. GPS device NEO6 light (Red LED
) blinking even though the " GPS data not found" messages in th python console.

Any hints ?? most welcome

Yours,
Krishane

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On Tue, 29 Nov 2022 17:23:31 +0530, KK CHN wrote:

When I ran the program I am able to see the output of latitude and
longitude in the console of thony IDE. But between certain intervals
of a few seconds I am getting the latitude and longitude data ( its
printing GPS data not found ?? ) in the python console.

I would guess the 8 seconds in

timeout = time.time() + 8

is too short. Most GPS receivers repeat a sequence on NMEA sentences and
the code is specifically looking for $GPGGA. Add

print(buff)

to see the sentences being received. I use the $GPRMC since I'm interested
in the position, speed, and heading. It's a different format but if you
only want lat/lon you could decode it in a similar fashion as the $GPGGA.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 30/11/2022 00.53, KK CHN wrote:

List ,
I am following this tutorial to get latitude and longitude data using
NEO6 GPS module and Py PICO to read the GPS data from the device.

I followed the code specified in this tutorial. https://microcontrollerslab.com/neo-6m-gps-module-raspberry-pi-pico-micropython/

I have installed thony IDE in my Desktop(windows PC) and run the code
after the devices all connected and using USB cable connected to my PC.

When I ran the program I am able to see the output of latitude and
longitude in the console of thony IDE. But between certain intervals of a few seconds I am getting the latitude and longitude data ( its printing
GPS data not found ?? ) in the python console.

The satellite count from the $GGPA output showing 03 ..
and the GPS data not found repeating randomly for intervals of seconds.
Any hints why it is missing the GPS data (randomly) ??

PS:- The GPS device I placed outside my window and connected to the PC
with a USB cable from the PICO module. GPS device NEO6 light (Red LED
) blinking even though the " GPS data not found" messages in th python console.

Any hints ?? most welcome

If it works (correctly*) some of the time, and there is only one look-up
in the code, it doesn't really sound like a problem with the Python.

* is it?

Does the unit also report the number of satellites it can 'see'? Is it
always more than one?

Other data not-discussed: change of cable, reducing length of cable, ...

--
Regards,
=dn

--- SoupGate-Win32 v1.05
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On 11/29/22 06:56, KK CHN wrote:

List ,
I am following this tutorial to get latitude and longitude data using
NEO6 GPS module and Py PICO to read the GPS data from the device.

I followed the code specified in this tutorial. https://microcontrollerslab.com/neo-6m-gps-module-raspberry-pi-pico-micropython/

I have installed thony IDE in my Desktop(windows PC) and run the code
after the devices all connected and using USB cable connected to my PC.

When I ran the program I am able to see the output of latitude and
longitude in the console of thony IDE. But between certain intervals of a few seconds I am getting the latitude and longitude data ( its printing
GPS data not found ?? ) in the python console.

The satellite count from the $GGPA output showing 03 ..
and the GPS data not found repeating randomly for intervals of seconds.
Any hints why it is missing the GPS data (randomly) ??

PS:- The GPS device I placed outside my window and connected to the PC
with a USB cable from the PICO module. GPS device NEO6 light (Red LED
) blinking even though the " GPS data not found" messages in th python console.

Any hints ?? most welcome

Yours,
Krishane

From a retired broadcast engineer, intimately familiar with vswr:

std, wire only usb cables can get to acting flaky at 5 feet. If the
cable to the receiver is more than that, a higher quality cable may be required. The better cable will probably have active electronics in the
molded on ends that treats the cable as a transmission line,
Which if done right can go as much as ten meters at usb2 speeds.

Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>

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List,

Just commented the // gpsModule.readline() in the while loop, (
refer the link https://microcontrollerslab.com/neo-6m-gps-module-raspberry-pi-pico-micropython/
)


while True: # gpsModule.readline() // This line commented out and the "GPS
not found message disappeared". buff = str(gpsModule.readline()) parts = buff.split(',')


The GPS not found error which appears intermittently in the output python console for few seconds ( say 7 to 8 seconds its printing the lines "
GPS data not found" ) now disappears.

Any thoughts? How the above line comment made it vanish the "GPS data
not found" error output.

Krishane

On Wed, Nov 30, 2022 at 3:58 AM rbowman <[email protected]> wrote:

On Tue, 29 Nov 2022 17:23:31 +0530, KK CHN wrote:

When I ran the program I am able to see the output of latitude and longitude in the console of thony IDE. But between certain intervals
of a few seconds I am getting the latitude and longitude data ( its printing GPS data not found ?? ) in the python console.

I would guess the 8 seconds in

timeout = time.time() + 8

is too short. Most GPS receivers repeat a sequence on NMEA sentences and
the code is specifically looking for $GPGGA. Add

print(buff)

to see the sentences being received. I use the $GPRMC since I'm interested
in the position, speed, and heading. It's a different format but if you
only want lat/lon you could decode it in a similar fashion as the $GPGGA.

--
https://mail.python.org/mailman/listinfo/python-list

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 30 Nov 2022, at 10:58, KK CHN <[email protected]> wrote:

List,

Just commented the // gpsModule.readline() in the while loop, ( refer the link https://microcontrollerslab.com/neo-6m-gps-module-raspberry-pi-pico-micropython/
)

while True: # gpsModule.readline() // This line commented out and the "GPS not found message disappeared". buff = str(gpsModule.readline()) parts = buff.split(',')

The GPS not found error which appears intermittently in the output python console for few seconds ( say 7 to 8 seconds its printing the lines "
GPS data not found" ) now disappears.

Any thoughts? How the above line comment made it vanish the "GPS data
not found" error output.

Show the full text of the error that you see. Is it a traceback?

What I would do then is read the code that raised the "GPS data not found" error and find out why it reports that error.

Barry
p.s. Please reply in line, do not top post.

Krishane

On Wed, Nov 30, 2022 at 3:58 AM rbowman <[email protected]> wrote:

On Tue, 29 Nov 2022 17:23:31 +0530, KK CHN wrote:

When I ran the program I am able to see the output of latitude and
longitude in the console of thony IDE. But between certain intervals
of a few seconds I am getting the latitude and longitude data ( its
printing GPS data not found ?? ) in the python console.

I would guess the 8 seconds in

timeout = time.time() + 8

is too short. Most GPS receivers repeat a sequence on NMEA sentences and
the code is specifically looking for $GPGGA. Add

print(buff)

to see the sentences being received. I use the $GPRMC since I'm interested >> in the position, speed, and heading. It's a different format but if you
only want lat/lon you could decode it in a similar fashion as the $GPGGA.

--
https://mail.python.org/mailman/listinfo/python-list

--
https://mail.python.org/mailman/listinfo/python-list

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