Testing Rotary Encoder

well been playing rotary encoder last few days, , got rotation figured out , strange occurs when push button in getting random responses. can move whole sensor unit, twist , begins count serial monitor. leads me believe may wrong sensor unit. best way test unit make sure works alright. rotary works well, push button i'm having random issues with. used button state change example code
http://arduino.cc/en/tutorial/buttonstatechange#.uyyr_lyfvsu
for testing , still randomness.
anyways can test push button multi meter, maybe check current? or need probe?

hi, debouncing button input?

http://arduino.cc/en/tutorial/debounce#.uyzkbpmszcs

also using pullup or pulldown resistor.

tom.....

Arduino Forum > Using Arduino > General Electronics > Testing Rotary Encoder

arduino