BG95 psm - signaling to external micro controller

IoT Modules LPWA Module
1

Hi,

I hope someone can assist with the following Q.

We want to use bg95 as at command modem.

We have an external microcontroller connected via uart i/f

When bg95 is set into PSM via AT command.

  • what happens when BG95 RTC timeout - how will this be reflected to the ext. microcontroller?
  • with UART i/f ?
    or/and with an gpio output on BG95?
    or else?
2

when BG95 module enter PSM mode , the state is similar to powndown ， there are nothing to output ， ( inculde UART)

in module internal ， only RTC is on ，when the PSM timer is time out ， the module will powerup automatically .

I attached one psm related doc for your reference .

https://cnquectel-my.sharepoint.com/:f:/g/personal/america-fae_quectel_com/ElrQukmsbmZCnCqWq3Br_3YB_lbEtSSutS3vphG2Am2NsA?e=y66LLC