Strange question perhaps, but I was wondering if anyone knows if a Pi would in theory consume more energy when the GND pin is connected to pin #16? I have an interactive piece of software running on the oi that changes what video is playing when a switch is pressed and the connection between GND and pin 16 is made. I'm just trying to understand if my overall power consumption will be different if no one interacts with it, versus if that switch is constantly being interacted with all day.
Will the Pi consume more power if a GPIO is connected to ground?
If the GPIO is set to mode INPUT then the current draw will be effectively zero.
If the GPIO is set to mode OUTPUT and set LOW the current draw will be effectively zero.
If the GPIO is set to mode OUTPUT and set HIGH the current draw will be as high as the GPIO can supply (say 50 milliamps). This will likely destroy the GPIO and eventually the Pi.