GPIO voltage

[Per Johan Groland]

What is the voltage and input voltage tolerance of the GPIO ports?

[Boken Lin]

@Per-Johan-Groland GPIOs on the Omega uses 2.7v for logic. Anything 1.5v and up are considered HIGH.

[Kit Bishop]

@Boken-Lin And, given that the Omega runs off 3.3v, what is the highest safe voltage one can apply to a GPIO pin for input?

[Per Johan Groland]

Thanks. How much current can the 2.8V output supply?

[Boken Lin]

Sorry, I made a mistake. GPIO uses 2.7v for logic, not 2.8v.

@Kit-Bishop I wouldn't go higher than 2.8 to be safe.

@Per-Johan-Groland I believe the max output is 20mA.