setExternalPowerEnabled(false) in Standby mode

[felipecookh]

Hi, I’m using an Arduino Portenta H7 rev1, and when using the function setExternalPowerEnabled(false) in setup() it correctly turns off the 3.3V pin.

But then going into Standby mode, standByUntilWakeupEvent with enableWakeupFromRTC after setExternalPowerEnabled(false), the 3.3V pin goes ON again.

Am I doing something wrong? It would be very useful if the function setExternalPowerEnabled(false) could extend into Standby mode, in order to preserve battery due to peripherals consumption when 3.3V is on, and eliminate the need for an external transistor or MOSFET as a switch.

Regards,

[alrvid]

We'll have a look at it. I'm the author of a library that this library uses underneath, so I have to consult a bit with @cristidragomir97 about it since he wrote this library, and see what we can come up with together.