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- #!/usr/bin/python
- #+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- #|R|a|s|p|b|e|r|r|y|P|i|-|S|p|y|.|c|o|.|u|k|
- #+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- #
- # pir_1.py
- # Detect movement using a PIR module
- #
- # Author : Matt Hawkins
- # Date : 21/01/2013
- # Import required Python libraries
- import RPi.GPIO as GPIO
- import time
- import subprocess
- import os.path
- # Use BCM GPIO references
- # instead of physical pin numbers
- GPIO.setmode(GPIO.BCM)
- # Define GPIO to use on Pi
- GPIO_PIR = 7
- print "PIR Module Test (CTRL-C to exit)"
- # Set pin as input
- GPIO.setup(GPIO_PIR,GPIO.IN) # Echo
- Current_State = 0
- Previous_State = 0
- try:
- print "Waiting for PIR to settle ..."
- # Loop until PIR output is 0
- while GPIO.input(GPIO_PIR)==1:
- Current_State = 0
- print " Ready"
- # Loop until users quits with CTRL-C
- while True :
- # Read PIR state
- Current_State = GPIO.input(GPIO_PIR)
- if Current_State==1 and Previous_State==0:
- # PIR is triggered
- Dateida = os.path.exists("/var/www/go.info")
- if Dateida == True:
- subprocess.call(['/home/pi/Alarm/scripts/alarm.sh'])
- print " Motion detected!"
- # Record previous state
- Previous_State=1
- elif Current_State==0 and Previous_State==1:
- # PIR has returned to ready state
- print " Ready"
- Previous_State=0
- # Wait for 10 milliseconds
- time.sleep(0.01)
- except KeyboardInterrupt:
- print " Quit"
- # Reset GPIO settings
- GPIO.cleanup()
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