Dark Mute for bathroom pi

darkmute.py

+#!/usr/local/bin/python
+
+import RPi.GPIO as GPIO
+import time
+
+GPIO.setmode(GPIO.BOARD)
+
+pin_to_circuit = 7
+
+def rc_time (pin_to_circuit):
+    count = 0
+
+    GPIO.setup(pin_to_circuit, GPIO.OUT)
+    GPIO.output(pin_to_circuit, GPIO.LOW)
+    time.sleep(0.1)
+
+    GPIO.setup(pin_to_circuit, GPIO.IN)
+
+    while (GPIO.input(pin_to_circuit) == GPIO.LOW):
+        count += 1
+
+    return count
+
+try:
+    while True:
+        print rc_time(pin_to_circuit)
+except KeyboardInterrupt:
+    pass
+finally:
+        GPIO.cleanup()
+