# -*- coding: utf-8 -*-
#!/usr/bin/env python
import os, subprocess, signal, time
import RPi.GPIO as GPIO
import datetime
PIR = 23
LED = 24
BUTTON = 25
pirState = False
pirVal = False
#pirValButton = False
initialRecTime = 0.0
recordvalue = False
#maximum duration of the sound file
maxRecordingTime = 60.0
GPIO.setmode(GPIO.BCM)
GPIO.setup(PIR,GPIO.IN)
GPIO.setup(LED,GPIO.OUT)
GPIO.setup(BUTTON,GPIO.IN)
#static starts and ends of the commands, the counter variable goes in between them
myname = 'PINK-'
commandRecordBegin='arecord -q -f cd -t wav > file sounds/'
commandRecordEnd='.wav'
commandPlayBegin='aplay '
lastSoundName = ' '
from subprocess import check_output, CalledProcessError
FOLDER = "/home/pi"
def get_free():
i = os.statvfs(FOLDER)
free_mb = (i.f_bavail * i.f_frsize) / 1000.0 / 1000.0
return free_mb
def delete_if_full():
print "delete_if_full"
free = get_free()
minfree = 275.0
while (free < minfree):
print free
sfiles = check_output(["/bin/sh", "-c", "ls -t /home/pi/sounds/*wav"]).strip().split("\n")
oldest = sfiles[-1]
oldest = os.path.join ("/home/pi/sounds/", oldest)
print oldest
print 'I am in the loop'
os.remove (oldest) #deleted oldest file
print "deleted oldest"
free = get_free()
print free
def play():
print "PLAY"
try:
#it changes the permissions of the folder of the sever so it can played from the website
check_output(["ssh", "oyo@91.250.112.182", "chmod o+x leaveamessage/test/"])
#play the last sound file in the server
ls = check_output(["ssh", "oyo@91.250.112.182", "ls -t leaveamessage/test/sounds/*.wav"])
mostrecent = ls.split("\n")[0]
print "mostrecent", mostrecent
cmd = "ssh oyo@91.250.112.182 'cat "+mostrecent+"' | aplay"
print cmd
os.system(cmd)
except CalledProcessError:
print "oops, error ls ing server. Playing local files."
playLocal()
except IndexError:
print "oops, error ls ing server. Playing local files."
playLocal()
def playLocal():
print "PLAY LOCAL"
lsLocalSounds = check_output(["ls -t sounds/*.wav"], shell=True)
mostRecentSound = lsLocalSounds.split("\n")[0]
print mostRecentSound
commandPlay=commandPlayBegin+mostRecentSound
os.system(commandPlay)
def stopRecording():
global recordvalue
global initialRecTime
recordvalue = False
initialRecTime = 0.0
print "stop recording called"
GPIO.output(LED, False)
os.kill(proc1.pid, signal.SIGKILL)
os.kill(proc1.pid+1, signal.SIGKILL)
print "finished recording and killed process"
#os.system("rsync -avz /home/pi/sounds/*.wav oyo@91.250.112.182:leaveamessage/test/sounds/")
scpCommandStr = "scp sounds/"+lastSoundName+" oyo@91.250.112.182:leaveamessage/test/sounds/"
os.system(scpCommandStr)
delete_if_full()
#We use this variable for forcing the user to release the buttons to start recording or playing again
needToReleaseRec = False
needToReleasePlay = False
while True:
pirValButton = GPIO.input(BUTTON)
if(pirValButton == True):
if(recordvalue == False and needToReleaseRec == False):
recordvalue = True
needToReleaseRec = True
initialRecTime = time.time()
print "initialTime",initialRecTime
GPIO.output(LED, True)
print "REC"
timestampNow = datetime.datetime.now().strftime("%Y_%m_%d-%H_%M_%S")
lastSoundName = myname+timestampNow+commandRecordEnd
commandRecord=commandRecordBegin+lastSoundName
proc1 = subprocess.Popen(commandRecord, shell = True)
print "hello stranger"
else:
needToReleaseRec = False
if(recordvalue == True):
if(pirValButton == False):
stopRecording()
else:
currentRecTime = time.time()
diffRecTime = currentRecTime - initialRecTime
if(diffRecTime > maxRecordingTime):
print "You pressed the REC button for too long! ",diffRecTime
stopRecording()
if(pirValButton == False): #in case the REC button is no pressed we check the PLAY one
pirVal = GPIO.input(PIR)
if(pirVal == True):
if(needToReleasePlay == False):
needToReleasePlay = True
print 'PLAY button pressed'
play()
print 'back from playing'
else:
needToReleasePlay = False
