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studio_sensors.py
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studio_sensors.py
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from __future__ import division
import struct
import socket
import fcntl
import getopt
import spidev
import time
import sys
from time import sleep
import pigpio
import urllib2
import httplib
import Adafruit_DHT
import datetime
import os
import contextlib
import subprocess
from subprocess import call
zone = ""
studio = ""
TSL235_pin = 7
DHT22_pin = 17
sensor_id = -1
IP = "54.191.189.58"
PORT = "3000"
def bitstring(n):
s = bin(n)[2:]
return '0'*(8-len(s)) + s
def readADC(adc_channel=0, spi_channel=0):
conn = spidev.SpiDev(0, spi_channel)
conn.max_speed_hz = 500000 # 1.2 MHz
conn.mode = 0
cmd = 192
if adc_channel != 0:
cmd += 32
reply_bytes = conn.xfer2([cmd, 0])
reply_bitstring = ''.join(bitstring(n) for n in reply_bytes)
reply = reply_bitstring[5:15]
conn.close()
return int(reply, 2)
def get_ip_address(ifname):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
return socket.inet_ntoa( fcntl.ioctl( s.fileno(), 0x8915, struct.pack('256s', ifname[:15]) )[20:24] )
def downUp():
subprocess.Popen(["ifdown", "wlan0"],close_fds=True)
sleep(10)
subprocess.Popen(["ifup", "wlan0"],close_fds=True)
sleep(20)
def rebootWlan0():
downUp()
hasIP = False
while(hasIP == False):
try:
ip = get_ip_address("wlan0")
hasIP = True
except IOError:
downUp()
request = urllib2.Request('http://'+IP+':'+PORT+'/update_ip?id='+sensor_id+'&ip=' + ip)
# recursively calls itself, could be bad
try:
response = urllib2.urlopen(request)
except urllib2.HTTPError, e:
#response.close()
print(str(datetime.datetime.now()) + 'HTTPError = ' + str(e.code) )
rebootWlan0()
except urllib2.URLError, e:
#response.close()
rebootWlan0()
print(str(datetime.datetime.now()) + 'URLError = ' + str(e.reason))
except Exception:
#response.close()
import traceback
print(str(datetime.datetime.now()) + 'generic exception: ' + traceback.format_exc())
rebootWlan0()
print(str(datetime.datetime.now()) + " http error " )
def getHwAddr(ifname):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
info = fcntl.ioctl(s.fileno(), 0x8927, struct.pack('256s', ifname[:15]))
return ''.join(['%02x' % ord(char) for char in info[18:24]])
# now begin the actual loop
####################################################################################################
if __name__ == "__main__":
# Read command line args
#myopts, args = getopt.getopt(sys.argv[1:],"s:z:")
###############################
# o == option
# a == argument passed to the o
###############################
#for o, a in myopts:
# if o == '-s':
# studio=a
# elif o == '-z':
# zone=a
# else:
# print(str(datetime.datetime.now()) + "Usage: %s -s studio -z zone" % sys.argv[0])
# FIRST
# do we know our zone and studio?
print( str(datetime.datetime.now()) + "start ")
has_studio_zone = False
if os.path.isfile('studio_sensor_studio_zone') == False:
print(str(datetime.datetime.now()) + " no studio + zone, getting one from server ")
mac = getHwAddr("wlan0")
print(str(datetime.datetime.now()) + " my mac is " + str(mac))
while has_studio_zone == False:
print(str(datetime.datetime.now()) + " going to mac request from " + IP + ":" + PORT)
request = urllib2.Request("http://"+str(IP)+":"+str(PORT)+"/get_studio_zone?mac="+str(mac))
try:
response = urllib2.urlopen(request)
studio_zone = response.read()
print(str(datetime.datetime.now()) + " got studio + zone " + str(studio_zone).split(':')[0] + " " + str(studio_zone).split(':')[1])
f = open('studio_sensor_studio_zone', 'w')
f.write(str(studio_zone))
f.close()
response.close()
has_studio_zone = True
except IndexError, e:
print( str(datetime.datetime.now()) + " service didn't find this MAC address, add for this device and restart ")
sys.exit()
except urllib2.HTTPError, e:
if(e.code == 409):
print(str(datetime.datetime.now()) + ' DB error configure MAC ' + str(e.code))
sys.exit()
print(str(datetime.datetime.now()) + 'HTTPError = ' + str(e.code))
#print(str(datetime.datetime.now()) + 'HTTPError = ' + str(e.code))
downUp()
except urllib2.URLError, e:
downUp()
print(str(datetime.datetime.now()) + 'URLError = ' + str(e.reason))
except httplib.HTTPException, e:
if(e.code == 409):
print(str(datetime.datetime.now()) + ' DB error configure MAC ' + str(e.code))
sys.exit()
downUp()
print(str(datetime.datetime.now()) + 'HTTPException')
except Exception:
import traceback
print(str(datetime.datetime.now()) + 'generic exception: ' + traceback.format_exc())
sleep(10)
# we know our zone and studio, lets load it in
if os.path.isfile('studio_sensor_studio_zone') == True:
f = open('studio_sensor_studio_zone', 'r')
studio_zone = f.read()
studio = str(studio_zone).split(":")[0]
zone = str(studio_zone).split(":")[1]
f.close()
print (studio + " " + zone)
pir_pin = 18
pi = pigpio.pi()
pi.set_mode(pir_pin, pigpio.INPUT) # activate input
sensor = Adafruit_DHT.DHT22
pir_triggered = False
has_id = False
# if you have an ID file then you don't need to do this
if os.path.isfile('studio_sensor_id') == False:
print(str(datetime.datetime.now()) + " no ID, getting one from server ")
ip = get_ip_address("wlan0")
print(str(datetime.datetime.now()) + " my IP is " + str(ip))
while has_id == False:
print(str(datetime.datetime.now()) + " going to request from " + IP + ":" + PORT)
request = urllib2.Request("http://"+str(IP)+":"+str(PORT)+"/get_id?studio="+str(studio)+"&zone="+str(zone)+"&ip="+str(ip))
#request = urllib2.Request("http://54.191.189.58:3000/get_id?studio=SEA&zone=1&ip=127.0.0.1")
try:
response = urllib2.urlopen(request)
sensor_id = response.read()
print(str(datetime.datetime.now()) + " got ID " + str(sensor_id))
f = open('studio_sensor_id', 'w')
f.write(str(sensor_id))
f.close()
response.close()
has_id = True
except urllib2.HTTPError, e:
print(str(datetime.datetime.now()) + 'HTTPError = ' + str(e.code))
downUp();
except urllib2.URLError, e:
downUp();
print(str(datetime.datetime.now()) + 'URLError = ' + str(e.reason))
except httplib.HTTPException, e:
downUp();
print(str(datetime.datetime.now()) + 'HTTPException')
except Exception:
import traceback
print(str(datetime.datetime.now()) + 'generic exception: ' + traceback.format_exc())
sleep(10)
if os.path.isfile('studio_sensor_id') == True:
f = open('studio_sensor_id', 'r')
sensor_id = f.read()
f.close()
sound_values = [0] * 150
sound_index = 0
last_send = time.time()
last_sound_sample = last_send
while 1:
sleep(0.05)
if pi.read(pir_pin) == False:
pir_triggered = True
else:
pir_triggered = False
if( time.time() - last_sound_sample) > 5:
sound_values[sound_index] = readADC()
sound_index += 1
last_sound_sample = time.time()
# every 5 minutes?
if (time.time() - last_send) > 300:
print(str(datetime.datetime.now()) + " sending ")
send = "i=" + str(sensor_id) + "&studio="+ studio+ "&zone="+ zone
if pir_triggered:
send += "&m=1"
else:
send += "&m=0"
light_value = readADC(1) #light is now just on MCP3002, tsl235 can stuff it
send += "&l=" + str(light_value)
sound_sum = 0
for val in range(sound_index):
sound_sum += abs( 512 - sound_values[val] )
send += "&s=" + str(sound_sum / sound_index)
# all done with sounds until next send
sound_index = 0
humidity, temperature = Adafruit_DHT.read_retry(sensor, DHT22_pin)
print(str(datetime.datetime.now()) + str(temperature) + " " + str(humidity))
if temperature != None:
send += "&t=" + str(int(temperature))
else:
send += "&t=0"
if humidity != None:
send += "&h=" + str(int(humidity))
else:
send += "&h=0"
print(str(datetime.datetime.now()) + send )
# we're going to want this to allow us to pull this out of the
# config file so it can be set from the desktop I'd think
request = urllib2.Request('http://'+IP+':'+PORT+'/?'+send)
try:
response = urllib2.urlopen(request)
response.close()
except urllib2.HTTPError, e:
#response.close()
print(str(datetime.datetime.now()) + " HTTP ERROR = " + str(e.code))
if( e.code == 409 ):
print(str(datetime.datetime.now()) + " We're getting a 409 which means a misconfigured request and resulting DB error ")
else:
rebootWlan0()
except urllib2.URLError, e:
#response.close()
rebootWlan0()
print(str(datetime.datetime.now()) + 'URLError = ' + str(e.reason))
except Exception:
#response.close()
import traceback
print(str(datetime.datetime.now()) + 'generic exception: ' + traceback.format_exc())
rebootWlan0()
print(str(datetime.datetime.now()) + " http error " )
last_send = time.time()
# end