I've been using the MKR 1500 board for some times now on the Orange network in France. I've been able to enable PSM on SARA using the Pass-through sketch.
Now I'm looking for a way to detect on SAMD21 side, if the SARA module is in PSM.
I found a way based on the V_INT pin of the SARA module (see 22.214.171.124 "Host application" on page 37), but when I look at the MKR 1500 schematics, it seems that this pin is not used (nor the RING pin).
Can anyone confirm this?
Is there a alternative way, that could ultimately be used as an external interrupt for the SAMD21?