How to use EXTINT pin to wake microprocessor at set alarm

Hello! I have a MAX-M10S GNSS board of yours and I would Like to utilse the EXTINT pin to wake a microprocessor at a set alarm time to switch between reading data and deep sleep mode. can you point me to any relevent inforation/example code to do this? I am using an rp2040 if this is relevant. Thank you very much!

Hi Oliver (@Oliver_K-C ),

The EXTINT pin is an input. You can use it to wake the M10 from sleep (power management request), or to record the time of events (UBX-TIM-TM2). But you can not use it as an output to wake an external microcontroller.

I hope this helps,
Paul

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