Newbie confusion on RTC pin numbering

[schuh8]

I am a relatively new esp32 + arduino IDE programmer trying to hold a pin low during sleep. The problem is that all the documentation refers to the RTC pins by two different designations. i.e. GPIO pin 14 on all diagrams is also referred to as RTC_GPIO16. When using that pin as an RTC pin do I refer to it as 14 or 16 ? Or ... am I making this harder than it really is?

[ESP_Minatel]

Hi,

On Arduino, you can use the GPIO from the GPIO column.

Are you going to use the ULP co-processor?