Getting a button to control code - Raspberry Pi Forums

first of all, have raspberry pi model 2 running raspbian. want connect button (in case adafruit 30mm arcade button).

i've based connections , code best of abilities using this adafruit tutorial can't python code react button press.

connections pictured in attachment. script below.

when run script (as sudo), doesn't thing.

appreciated!

code: select all

from time import sleep import rpi.gpio gpio gpio.setmode(gpio.board) gpio.setup(40, gpio.in)  while true:     if (gpio.input(40) == true):         print("pressed")     sleep(0.1);

hello,
meaning of 'doesnt thing' ? no error message, no printouts ?

place printout gpio-value loop:

code: select all

from time import sleep import rpi.gpio gpio gpio.setmode(gpio.board) gpio.setup(40, gpio.in)  while true:     print( gpio.input(40) )     if (gpio.input(40) == true):         print("pressed")     sleep(0.1);

not clear picture whether have pullup or pulldown hardware setup. if yellow 3.3, white gnd, should expect 'low' or '0' when pressed. other way round '1'.

hope helps
gerhard

raspberrypi