Why i can show the final value of variable?

Question

I have this code that read the Raspberry Pi RPIO pin number 24, that is connected to coin acceptor and the datasheet of it is:

0,05€ - 1 pulse
0,10€ - 2 pulse each pulse in 0,025ms
0,20€ - 4 pulse each pulse in 0,025ms
0,50€ - 10 pulse each pulse in 0,025ms
1€    - 20 pulse each pulse in 0,025ms
2€    - 40 pulse each pulse in 0,025ms

And i have this code:

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setup(24,GPIO.IN)

count = 0
euroCoin = 0

def coin(value):
  euro = value * 5
  return euro

while True:
   inputValue = GPIO.input(24)
   if (inputValue == True):
    count = count + 1
    euroCount = coin(count)
    print ("Euro "+str(euroCount)+".")
   time.sleep(.025)

That show, for example, for 0,20€ coin show:

0,05
0,10
0,15
0,20

I only need to show the final value, how i do that? Thanks

@JimFasarakis-Hilliard Looks like OP is triggering on a GPIO pin. Process can run forever — OneCricketeer, Dec 07 '16 at 22:42
How does the hardware (or the user) tell you when what you've gotten is "final"? — Charles Duffy, Dec 07 '16 at 22:50
@cricket_007 doesn't that contradict the concept of a "final" value? — Dimitris Fasarakis Hilliard, Dec 07 '16 at 23:02
@JimFasarakis-Hilliard I can't speak for what OP thinks the code should be doing — OneCricketeer, Dec 07 '16 at 23:08

score 0 · Answer 1 · edited May 23 '17 at 12:30

0

If you're terminating the program with a signal, like CTRL-C (SIGINT), you'll need to write a handler to catch that signal. Otherwise, you can't capture the value you're after.

See How do I capture SIGINT in Python?

edited May 23 '17 at 12:30

Community

1
1

answered Dec 07 '16 at 22:46

dwerner

6,462
4
30
44

I don't need to close the program, i need to show the final value that i put and await for more coins, did you understand me? – user3332475 Dec 07 '16 at 22:58
1

If you wait for more coins how do you know what the final value is? – Dimitris Fasarakis Hilliard Dec 07 '16 at 23:01

Why i can show the final value of variable?

1 Answers1