What does I/O/T stand for in a pinout diagram? (esp32-s2)

A

Arjuna_1000

New Member

• Feb 28, 2021

• #1

I am looking at the pinout of an esp32-s2 board with LCD Display (see picture below) and I am wondering what I/O/T stands for. I am particularly looking at pin IO46 and wondering if it can be used only as input (in case the "I" stands for input).

 

Mickster

Well-Known Member

Most Helpful Member

• Feb 28, 2021

• #2

Check the datasheet.

https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf

Page 14:
"Note: • P: power pin; I: input; O: output; T: high impedance."

 

A

Arjuna_1000

New Member

• Mar 1, 2021

• #3

Mickster said:

Check the datasheet.

https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf

Page 14:
"Note: • P: power pin; I: input; O: output; T: high impedance."

Click to expand...

Thanks a lot, I'm very new to electronics, I will get into the habit of finding and reading data sheets.

 

P

Pommie

Well-Known Member

Most Helpful Member

• Mar 4, 2021

• #4

Got to ask, what is the difference between an input and a tristate (or high impedance) pin?

Mike.
P.S. serious question.