Any unused GPIOs?

[FauthD]

Hi,
do you know unused GPIOs that could be used to sense a door sensor (a reed switch)?
Had use the T1 in the past, there I found a GPIO that flags my door status to Tasmota.
Now I want to use the T5 for that door (balkony).

PS: I had the T1 mounted sideways, so the buttons show the functions: Upper is open, lower is closing.
For the T5 I plan the same, but that means changing quite some led stuff.

LG, Dieter Fauth

[danielscheidler]

sonoff_T5_Development_Material.pdf
perhaps this can help?