SIM800L + UART + network module?

[headshaker]

You have very interesting part in your code:

Code: Select all

ppp = network.PPP(simcom.simcom) 

So, you have some simcom object in uart class?

[kinno]

I tried to extract just the code that would help but I think I may have led to some confusion.

The simcom.simcom that you are referring to is a module I wrote myself to handle all the functions related to simcom in my project. I didn't want to upload hundreds of lines of code so I copied the parts I thought would be important.

So,

Code: Select all

simcom = UART(1, 9600)  # Create with given baudrate
simcom.init(baudrate=9600, bits=8, parity=None, stop=1, rx=26, tx=27)  # init with given parameters check rx and tx.

AT('+CIPSHUT', success='SHUT OK')
AT('+CFUN=1,1', timeout=30, success="SMS Ready")

print("Running Modem Setup Scripts")
AT('', timeout=1)
AT('+IPR=9600')
AT('+GSN')
AT('+CPIN?')
AT('+CFUN=1')
AT('+CMNB=1')
AT('+CSTT="' + apn + '","",""')
AT('+CGDCONT=1,"IP","' + apn + '"')
AT('S7=10')

AT('+CGDATA="PPP",1', success='NO CARRIER', timeout=5)             # TODO First call often fails.... Why?
if AT('+CGDATA="PPP",1', timeout=0)[0] == 'Timeout':               	   # TODO Second Call Connects Immediately. Why?
        print('PPP Call Established.')
    else:
        print('PPP Call Failed.')

Is actually in the module I wrote titled simcom.py. That's why you see the simcom.simcom. I did not correctly edit it for the example. I missed that.

[eldstado]

Hi, did you find out about this? I'm struggelig with similar issues, cant get IP from ppp.
Modem is working when using sockets directly, but no PPP.

using firmware 1.12 with spiram. nimbelink skywire modem on UART2

[imliubo]

Hi, did you find out about this? I'm struggelig with similar issues, cant get IP from ppp.
Modem is working when using sockets directly, but no PPP.

using firmware 1.12 with spiram. nimbelink skywire modem on UART2

Hi, I got same issue, did you find any solution?

[imliubo]

Hi, did you find out about this? I'm struggelig with similar issues, cant get IP from ppp.
Modem is working when using sockets directly, but no PPP.

using firmware 1.12 with spiram. nimbelink skywire modem on UART2

Hi, I got same issue, did you find any solution?

I find the reason:
https://github.com/micropython/micropython/pull/6453