Re: NEO6 GPS with Py PICO with micropython

[Barry Scott]

> On 30 Nov 2022, at 10:58, KK CHN  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  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
>> 
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> https://mail.python.org/mailman/listinfo/python-list
> 

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Re: NEO6 GPS with Py PICO with micropython

[KK CHN]

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  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
>
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Re: NEO6 GPS with Py PICO with micropython

[rbowman]

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.

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Re: NEO6 GPS with Py PICO with micropython

[gene heskett]

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 

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Re: NEO6 GPS with Py PICO with micropython

[dn]

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
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NEO6 GPS with Py PICO with micropython

[KK CHN]

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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