Bit of a back story of what i am trying to achieve.
I am building a Vewlix Clone arcade running a computer with HDMI Output and a LED TV for the display.
The Computer doesn’t support CEC so i am looking for a simple/creative way to power on the TV.
The power button on the TV is a momentary push button. I understand the Arduino can detect voltage up to 5V.
What i want to do is use the Arduino to detect voltage on one pin (3.3v) and when detected to momentary press (close) the power button turning on the TV, and when power is lost momentary pressing the button again turning the TV off.
Just wondering if this is possible?