gistfile1.txt

from gpiozero import Motor, InputDevice
from time import sleep, time

SAMPLETIME = 1

r = Motor(forward=5, backward=6)
state = False
b = InputDevice(4)

r.forward()

count = 0
sleep(1)
start = time()
while time() - start < .1:
    status = b.is_active
    if state != status:
        state = status
        count += 1

r.stop()
print('Done')
print(count)