Hi @felmue,
thanks for your answer, could you please share the code you used? Because I cannot wake up the modem in any way so I think I'm wronging something or if you prefer I can share my code and you have a look at it
Regards,
Roberto

Hi,
I'm trying to use the CAT-M module with SIM7080G with https://flow.m5stack.com, setting the PSM mode and wake up the modem, sending an MQTT message via unsolicited request.
Reading this document there are only two Wake-up conditions:

1. T3412 timer is expired
2. Pulling PWRKEY to low level

I want to use the PWRKEY way to wake up the modem, following this post I have to set the PIN to HIGH then to LOW (there is an inverted in the middle).
This is my UI FLow code

It works to change the PWRKEY status but if I try to send a new MQTT message after this code nothing happen and the message has not been delivered, so the modem seems to be in PSM mode yet.

Can someone help me figure out where am I wrong?
Thanks in advance
Roberto