SIM_DET pin in use or not ?

[J Jarmuzek]

I need to know in which case the SIW_DET pin is used. Does it depend on the version of the nRF9160 ? Then which versions ?

And is this detection function better in software or hardware ?

[Albrecht Markus Schellenberger]

Hello,

according to the Pin assignments of the nRF9160 Product Specification, SIM_DET is not used and needs to be left floating.

Regards,

Markus

[J Jarmuzek]

Hi, thanks for your answer

The problem is that on the thingy91 this pin is connected to the sim holder which have a switch mounted. It can be disconnected by removing an R0 but I don't undstand why the design would be made this way if the SIM_DET is not in use in every versions of the nRF9160.

Regards,

Jean