LoPy asynycio as_GPS

[romeotango]

os.uname()
(sysname='LoPy', nodename='LoPy', release='1.20.1.r2', version='v1.11-06dfad0 on 2019-11-30', machine='LoPy with ESP32', lorawan='1.0.2', pybytes='1.3.0')

For a project for motorcyclists I need current GPS data.
I would like to determine and record data for the simulation during the ride.
Therefore I found the wonderful libraries of Peter Hinch.
I use
uasyncio in the fast_io version
as_GPS

os.listdir("as_GPS")
['as_GPS.py', 'as_GPS_utils.py', 'as_rwGPS.py']

asyncio works in simple tests.

But as_GPS does not want to start:
I can't find any typos.
No difference when using the original uasyncio version
(DeepL helped me to translate)

(2020, 1, 4, 11, 6, 55, 480879, None)
Pycom MicroPython 1.20.1.r2 [v1.11-06dfad0] on 2019-11-30; LoPy with ESP32
Pybytes Version: 1.3.0
Type "help()" for more information.
import uasyncio as asyncio
import as_GPS
from machine import UART
uart= UART(1, baudrate=9600, pins=('P20','P21'))
sreader = asyncio.StreamReader(uart) # Create a StreamReader
gps = as_GPS.AS_GPS(sreader, fix_cb=callback) # Instantiate GPS
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'AS_GPS'

[robert-hh]

@romeotango Importing as_GPS on a Fipy returns the proper set of class members:

Pycom MicroPython 1.20.1.r1 [ed31fe1] on 2019-11-16; FiPy with ESP32
Type "help()" for more information.
>>> import as_GPS
>>> dir(as_GPS)
['__class__', '__name__', 'const', '__file__', 'LONG', 'modf', 'asyncio', 'DD', 'DMS', 'DM', 'KML', 'KPH', 'MPH', 'KNOT', 'MDY', 'DMY', 'RMC', 'GLL', 'VTG', 'GGA', 'GSA', 'GSV', 'POSITION', 'ALTITUDE', 'DATE', 'COURSE', 'AS_GPS']
>>> 

You could try to erase your module and make a fresh new start.

[romeotango]

Hallo,
i do not think, it is am memory problem.
I have got some Py's at kickstarter. So I tried a FiPy today.
See the screenshot:

import gc
gc.mem_free()
2549728
import uasyncio as asyncio
gc.mem_free()
2533104
import as_GPS
gc.mem_free()
2532832
uart= UART(1, baudrate=9600, pins=('P20','P21'))
gc.mem_free()
2532480
sreader = asyncio.StreamReader(uart)
gc.mem_free()
2532256
gps = as_GPS.AS_GPS(sreader, fix_cb=callback)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'AS_GPS'
gc.mem_free()
2531776

[jcaron]

@romeotango the original LoPy didn’t have much RAM, so if you are loading lots of scripts and they in turn use quite a bit of memory that may be an issue.

[romeotango]

Hallo,
thank you for your answer.
In the meantime I have performed several complete resets.
System reloaded with delete.
The error messages are not very meaningful. And refer once to missing memory, can't allocate.
I reduced the packages for uasyncio and as_GPS with mpy-cross.
Then this error does not occur anymore.
But I still can't get over this point:
AttributeError: 'module' object has no attribute 'AS_GPS'

I can't think of any reason for the mistakes, except:
LoPy is incompatible with these packages.
Maybe I have to buy a PyBoard and try it on it.
Have a nice Sunday!

[jcaron]

@romeotango are you sure the right file is imported? Check via FTP for any other as_gps.py files, for instance.