API request: Automatically detecting the voltage at which a external module operates.

[EstebanFuentealba]

Description of the feature you're suggesting.

Is it possible to electronically implement (adding a resistor to some pin) or using the "Expansion Module Protocol," for F0 to activate 5V automatically? This would involve sending a signal to utilize furi_hal_power_enable_otg.

With this capability, each external module could communicate to F0 the voltage at which it operates, thereby avoiding some voltage drops that occur at 3.3V, it would eliminate the need to route through GPIO / 5V on GPIO ON

Anything else?

No response

[skotopes]

We can not keep 5v by default on. The only viable option is to start module with 3.3V, then use RPC to enable 5V.

If that sounds good then we can expose 5v through RPC.

[EstebanFuentealba]

Yep, it sounds good, it's what I had imagined.