diff --git a/testaukset.py b/testaukset.py
index 08f1a57..37bec3d 100644
--- a/testaukset.py
+++ b/testaukset.py
@@ -2,11 +2,17 @@ import time
 from grove.gpio import GPIO
 import RPi.GPIO as rGPIO
 
+
+
 led = GPIO(5, GPIO.OUT)
 button = GPIO(6, GPIO.IN)
 
 # create PWM instance
-pwm = rGPIO.PWM(12, 10) # pin 12
+pwmPin = 12
+pwm = rGPIO.PWM(pwmPin, 10)
+rGPIO.setmode(rGPIO.BCM)
+rGPIO.setup(pwmPin, rGPIO.OUT)
+
 pwm.start(0) 
 # 1000 Hz sound
 pwm.ChangeFrequency(1000)