I’ve been using C&K KMR2 tact switches on my boards that require tact switches for a few months now. They are approx 4.2×2.8×1.9mm and the exposed SMT pads can be hand soldered.

How do you turn an LED on and off with a button on Arduino? We set the pinButton variable as integer 8 and we connect the button at pin 8 on the Board. Then the LED is connected to pin 2 using the ...