The internal pullup resistor for the up and down inputs is typical 110 k,
so you probably need no interface, you can drive the pins directly from the Arduino.
Given you run the PT2256 with 5V.
This datasheet is a bit more detailed.
The internal pullup resistor for the up and down inputs is typical 110 k,
so you probably need no interface, you can drive the pins directly from the Arduino.
Given you run the PT2256 with 5V.
This datasheet is a bit more detailed.