I am using tactile buttons. I am using the pull down configuration with a 100ohm resistor going to the digital pin and 10K going to ground, as per the tutorial. I am just curious as to why we are using only 100ohms. Would this send 50mA to the digital pin and exceed the max current value the pin can handle? Also if it were 50mA would a 1/4W resistor be insufficient? Please correct me if I am looking at this wrong. Thank you.