print '-- %s: %s' % (e.__class__.__name__, e)
# Reset our 5 minute timer
sensorhistory.reset5mintimer()
# We're going to twitter at midnight, 8am and 4pm
# Determine the hour of the day (ie 6:42 -> '6')
currhour = datetime.datetime.now().hour
# twitter every 8 hours
if (((time.time() - twittertimer) >= 3660.0) and (currhour % 8 == 0)):
print "twittertime!"
twittertimer = time.time();
if not LOGFILENAME:
message = appengineauth.gettweetreport()
else:
# sum up all the sensors' data
wattsused = 0
whused = 0
for history in sensorhistories.sensorhistories:
wattsused += history.avgwattover5min()
whused += history.dayswatthr
message = "Currently using "+str(int(wattsused))+" Watts, "+str(int(whused))+" Wh today so far #tweetawatt"
# write something ourselves
if message:
print message
TwitterIt(twitterusername, twitterpassword, message)
if GRAPHIT:
def update_graph(idleevent):
global avgwattdataidx, sensorhistories, twittertimer, DEBUG, currday
# DAW - 5/18/11 - wrap the whole xbee packet inspection code in an exception handler
try:
# grab one packet from the xbee, or timeout
packet = xbee.find_packet(ser)
if not packet:
return # we timedout
xb = xbee(packet) # parse the packet
#print xb.address_16
if DEBUG: # for debugging sometimes we only want one
print xb
# DAW - 5/18/11 - prevent exception that was caused by invalid xbee packet address
if xb.address_16 < 0 or xb.address_16 > len(vrefcalibration):
LogMsg("ERROR - invalid packet address: " + xb.address_16)
return
# we'll only store n-1 samples since the first one is usually messed up
voltagedata = [-1] * (len(xb.analog_samples) - 1)
ampdata = [-1] * (len(xb.analog_samples ) -1)
# grab 1 thru n of the ADC readings, referencing the ADC constants
# and store them in nice little arrays
for i in range(len(voltagedata)):
voltagedata[i] = xb.analog_samples[i+1][VOLTSENSE]
ampdata[i] = xb.analog_samples[i+1][CURRENTSENSE]
if DEBUG:
print "ampdata: "+str(ampdata)
print "voltdata: "+str(voltagedata)
# get max and min voltage and normalize the curve to '0'
# to make the graph 'AC coupled' / signed
min_v = 1024 # XBee ADC is 10 bits, so max value is 1023
max_v = 0
for i in range(len(voltagedata)):
if (min_v > voltagedata[i]):
min_v = voltagedata[i]
if (max_v < voltagedata[i]):
max_v = voltagedata[i]
# figure out the 'average' of the max and min readings
avgv = (max_v + min_v) / 2
# also calculate the peak to peak measurements
vpp = max_v-min_v
for i in range(len(voltagedata)):
#remove 'dc bias', which we call the average read
voltagedata[i] -= avgv
# We know that the mains voltage is 120Vrms = +-170Vpp
voltagedata[i] = (voltagedata[i] * MAINSVPP) / vpp
# normalize current readings to amperes
for i in range(len(ampdata)):
# VREF is the hardcoded 'DC bias' value, its
# about 492 but would be nice if we could somehow
# get this data once in a while maybe using xbeeAPI
if vrefcalibration[xb.address_16]:
ampdata[i] -= vrefcalibration[xb.address_16]
else:
ampdata[i] -= vrefcalibration[0]
# the CURRENTNORM is our normalizing constant
# that converts the ADC reading to Amperes
ampdata[i] /= CURRENTNORM
#print "Voltage, in volts: ", voltagedata
#print "Current, in amps: ", ampdata
# calculate instant. watts, by multiplying V*I for each sample point
wattdata = [0] * len(voltagedata)
for i in range(len(wattdata)):
wattdata[i] = voltagedata[i] * ampdata[i]
# sum up the current drawn over one 1/60hz cycle
avgamp = 0
# DAW - 2/26/11 - check for less than 17 samples - would sometimes cause index out of range exception
if (len(ampdata) < 17):
return
# 16.6 samples per second, one cycle = ~17 samples
# close enough for govt work :(
for i in range(17):
avgamp += abs(ampdata[i])
avgamp /= 17.0
# DAW - average of all 18 amp readings
avgamp2 = 0
for i in range(len(ampdata)):
avgamp2 += abs(ampdata[i])
avgamp2 /= len(ampdata)
# DAW - average of all 18 volt readings
avgvolt = 0
for i in range(len(voltagedata)):
avgvolt += abs(voltagedata[i])
avgvolt /= len(voltagedata)
# sum up power drawn over one 1/60hz cycle
avgwatt = 0
# DAW - 2/26/11 - check for less than 17 samples - would sometimes cause index out of range exception
if len(wattdata) < 17:
return
# 16.6 samples per second, one cycle = ~17 samples
for i in range(17):
avgwatt += abs(wattdata[i])
avgwatt /= 17.0
# DAW - average of all 18 watt readings
avgwatt2 = 0
for i in range(len(wattdata)):
avgwatt2 += abs(wattdata[i])
avgwatt2 /= len(wattdata)
except:
LogMsg("Error in packet handling, ignoring")
return
# Print out our most recent measurements
print str(xb.address_16)+"\tCurrent draw, in amperes: "+str(avgamp)
print "\tWatt draw, in VA: "+str(avgwatt)
# DAW print out extra data
print "\t RSSI: " + str(xb.rssi) + " Volt: " + str(avgvolt) + " Amps: " + str(avgamp2) + " Watts: " + str(avgwatt2)
if (avgamp > 13):
return # hmm, bad data
if GRAPHIT:
# Add the current watt usage to our graph history
avgwattdata[avgwattdataidx] = avgwatt
avgwattdataidx += 1
if (avgwattdataidx >= len(avgwattdata)):
# If we're running out of space, shift the first 10% out
tenpercent = int(len(avgwattdata)*0.1)
for i in range(len(avgwattdata) - tenpercent):
avgwattdata[i] = avgwattdata[i+tenpercent]
for i in range(len(avgwattdata) - tenpercent, len(avgwattdata)):
avgwattdata[i] = 0
avgwattdataidx = len(avgwattdata) - tenpercent
# retreive the history for this sensor
sensorhistory = sensorhistories.find(xb.address_16)
#print sensorhistory
# add up the delta-watthr used since last reading
# Figure out how many watt hours were used since last reading
elapsedseconds = time.time() - sensorhistory.lasttime
dwatthr = (avgwatt * elapsedseconds) / (60.0 * 60.0) # 60 seconds in 60 minutes = 1 hr
sensorhistory.lasttime = time.time()
print "\t\tWh used in last ",elapsedseconds," seconds: ",dwatthr
sensorhistory.addwatthr(dwatthr)
if DEBUG:
print "sensorhistory.avgwattover5min is " + str(sensorhistory.avgwattover5min())
print time.strftime("%Y %m %d, %H:%M")+", "+str(sensorhistory.sensornum)+", "+str(sensorhistory.avgwattover5min())+"\n"
# Determine the minute of the hour (ie 6:42 -> '42')
currminute = (int(time.time())/60) % 10
# Figure out if its been five minutes since our last save
if (((time.time() - sensorhistory.fiveminutetimer) >= 60.0)
and (currminute % 5 == 0)
):
# Print out debug data, Wh used in last 5 minutes
avgwattsused = sensorhistory.avgwattover5min()
print time.strftime("%Y %m %d, %H:%M")+", "+str(sensorhistory.sensornum)+", "+str(sensorhistory.avgwattover5min())+"\n"
# Lets log it! Seek to the end of our log file
if logfile:
logfile.seek(0, 2) # 2 == SEEK_END. ie, go to the end of the file
logfile.write(time.strftime("%Y %m %d, %H:%M")+", "+
str(sensorhistory.sensornum)+", "+
str(sensorhistory.avgwattover5min())+"\n")
logfile.flush()
# Or, send it to the app engine
if not LOGFILENAME:
appengineauth.sendreport(xb.address_16, avgwattsused)
# DAW - 1/18/11 - log avg watts used to nimbits
# avgwattstosend = "%.2f" % avgwattsused
if NIMBITS_ID:
try:
urllib.urlopen("http://gigamega-beta.appspot.com/service/currentvalue?value=" +
str(avgwattsused) + "&point=" + NIMBITS_ID + "&[email protected]&secret=e90d9c41-6529-4cf8-b248-92335c577cc7")
except IOError:
print 'Error sending to nimbits'
# DAW - 2/7/11 - log avg watts used to Pachube
if PACHUBE_ID:
try:
pac.update([eeml.Data(int(PACHUBE_ID), avgwattsused, unit=eeml.Watt())]) # unit=eeml.Unit('Volt', type='basicSI', symbol='V'))])
pac.put()
except:
print 'Error sending to Pachube'
# DAW - 8/7/10 - moved here from below - otherwise, reset5mintimer can cause watts to be 0 when tweet occurs
# We're going to twitter at midnight, 8am and 4pm
# Determine the hour of the day (ie 6:42 -> '6')
currhour = datetime.datetime.now().hour
# twitter every 8 hours
# DAW - if debugging, twitter (actually just log to file) every minute
#if ((((time.time() - twittertimer) >= 3660.0) and (currhour % 8 == 0)) or (DEBUG and ((time.time() - twittertimer) >= 60.0))):
# DAW - twitter every 4 hours
if (((time.time() - twittertimer) >= 3660.0) and (currhour % 4 == 0)):
print "twittertime!"
twittertimer = time.time();
if not LOGFILENAME:
message = appengineauth.gettweetreport()
else:
# sum up all the sensors' data
wattsused = 0
whused = 0
if DEBUG:
print "num sensor histories", len(sensorhistories.sensorhistories)
newday = False
thisday = datetime.datetime.now().day
if currday != thisday:
newday = True
if DEBUG:
message = "New day, clearing dayswatthr " + str(currday) + " to " + str(thisday)
LogMsg(message)
currday = thisday
for history in sensorhistories.sensorhistories:
if DEBUG:
print "in twitter loop, found history", history.sensornum, history.cumulative5mwatthr
wattsused += history.avgwattover5min()
whused += history.dayswatthr
# DAW - 8/7/10 - clear day's count when day changes
if newday:
history.dayswatthr = 0
message = "Currently using "+str(int(wattsused))+" Watts, "+str(int(whused))+" Wh today so far #tweetawatt"
# DAW - 8/7/10 - if it's midnight, clear the day's count
# write something ourselves
if message:
print message
# DAW - if debugging, write to CSV file for debug purposes rather than twittering
if DEBUG:
LogMsg(message)
else:
#TwitterIt(twitterusername, twitterpassword, message)
TwitterIt(message)
# Reset our 5 minute timer
sensorhistory.reset5mintimer()
if GRAPHIT:
# Redraw our pretty picture
fig.canvas.draw_idle()
# Update with latest data
wattusageline.set_ydata(avgwattdata)
voltagewatchline.set_ydata(voltagedata)
ampwatchline.set_ydata(ampdata)
# Update our graphing range so that we always see all the data
maxamp = max(ampdata)
minamp = min(ampdata)
maxamp = max(maxamp, -minamp)
mainsampwatcher.set_ylim(maxamp * -1.2, maxamp * 1.2)
wattusage.set_ylim(0, max(avgwattdata) * 1.2)
except (IOError, socket.error), e:
print '-- %s: %s' % (e.__class__.__name__, e)
# Reset our 5 minute timer
sensorhistory.reset5mintimer()
# We're going to twitter at midnight, 8am and 4pm
# Determine the hour of the day (ie 6:42 -> '6')
currhour = datetime.datetime.now().hour
# twitter every 8 hours
if (((time.time() - twittertimer) >= 3660.0) and (currhour % 8 == 0)):
print "twittertime!"
twittertimer = time.time()
if not LOGFILENAME:
message = appengineauth.gettweetreport()
else:
# sum up all the sensors' data
wattsused = 0
whused = 0
for history in sensorhistories.sensorhistories:
wattsused += history.avgwattover5min()
whused += history.dayswatthr
message = "Currently using " + str(
int(wattsused)) + " Watts, " + str(
int(whused)) + " Wh today so far #tweetawatt"
# write something ourselves
if message:
print message
TwitterIt(twitterusername, twitterpassword, message)
def update_graph(idleevent):
global avgwattdataidx, sensorhistories, twittertimer, DEBUG, incoffee, coffeecutoff
shouldtweet = False
# grab one packet from the xbee, or timeout
packet = xbee.find_packet(ser)
if not packet:
return # we timedout
xb = xbee(packet) # parse the packet
#print xb.address_16
if DEBUG: # for debugging sometimes we only want one
print xb
# we'll only store n-1 samples since the first one is usually messed up
voltagedata = [-1] * (len(xb.analog_samples) - 1)
ampdata = [-1] * (len(xb.analog_samples ) -1)
# grab 1 thru n of the ADC readings, referencing the ADC constants
# and store them in nice little arrays
for i in range(len(voltagedata)):
voltagedata[i] = xb.analog_samples[i+1][VOLTSENSE]
ampdata[i] = xb.analog_samples[i+1][CURRENTSENSE]
if DEBUG:
print "ampdata: "+str(ampdata)
print "voltdata: "+str(voltagedata)
# get max and min voltage and normalize the curve to '0'
# to make the graph 'AC coupled' / signed
min_v = 1024 # XBee ADC is 10 bits, so max value is 1023
max_v = 0
for i in range(len(voltagedata)):
if (min_v > voltagedata[i]):
min_v = voltagedata[i]
if (max_v < voltagedata[i]):
max_v = voltagedata[i]
# figure out the 'average' of the max and min readings
avgv = (max_v + min_v) / 2
# also calculate the peak to peak measurements
vpp = max_v-min_v
for i in range(len(voltagedata)):
#remove 'dc bias', which we call the average read
voltagedata[i] -= avgv
# We know that the mains voltage is 120Vrms = +-170Vpp
voltagedata[i] = (voltagedata[i] * MAINSVPP) / vpp
# normalize current readings to amperes
for i in range(len(ampdata)):
# VREF is the hardcoded 'DC bias' value, its
# about 492 but would be nice if we could somehow
# get this data once in a while maybe using xbeeAPI
if vrefcalibration[xb.address_16]:
ampdata[i] -= vrefcalibration[xb.address_16]
else:
ampdata[i] -= vrefcalibration[0]
# the CURRENTNORM is our normalizing constant
# that converts the ADC reading to Amperes
ampdata[i] /= CURRENTNORM
print "Voltage, in volts: ", voltagedata
print "Current, in amps: ", ampdata
# calculate instant. watts, by multiplying V*I for each sample point
wattdata = [0] * len(voltagedata)
for i in range(len(wattdata)):
wattdata[i] = voltagedata[i] * ampdata[i]
# sum up the current drawn over one 1/60hz cycle
avgamp = 0
# 16.6 samples per second, one cycle = ~17 samples
# close enough for govt work :(
for i in range(17):
avgamp += abs(ampdata[i])
avgamp /= 17.0
# sum up power drawn over one 1/60hz cycle
avgwatt = 0
# 16.6 samples per second, one cycle = ~17 samples
for i in range(17):
avgwatt += abs(wattdata[i])
avgwatt /= 17.0
if (avgamp > 13):
return # hmm, bad data
# Print out our most recent measurements
print str(xb.address_16)+"\tCurrent draw, in amperes: "+str(avgamp)
print "\tWatt draw, in VA: "+str(avgwatt)
if(avgwatt > coffeecutoff and incoffee == False):
print "MAKING COFFEE!!!\n"
incoffee = True
shouldtweet = True
elif(avgwatt < coffeecutoff and incoffee == True):
print "NO MORE COFFEE :(\n"
incoffee = False
shouldtweet = True
if GRAPHIT:
# Add the current watt usage to our graph history
avgwattdata[avgwattdataidx] = avgwatt
avgwattdataidx += 1
if (avgwattdataidx >= len(avgwattdata)):
# If we're running out of space, shift the first 10% out
tenpercent = int(len(avgwattdata)*0.1)
for i in range(len(avgwattdata) - tenpercent):
avgwattdata[i] = avgwattdata[i+tenpercent]
for i in range(len(avgwattdata) - tenpercent, len(avgwattdata)):
avgwattdata[i] = 0
avgwattdataidx = len(avgwattdata) - tenpercent
# retreive the history for this sensor
sensorhistory = sensorhistories.find(xb.address_16)
print sensorhistory
# add up the delta-watthr used since last reading
# Figure out how many watt hours were used since last reading
elapsedseconds = time.time() - sensorhistory.lasttime
dwatthr = (avgwatt * elapsedseconds) / (60.0 * 60.0) # 60 seconds in 60 minutes = 1 hr
sensorhistory.lasttime = time.time()
print "\t\tWh used in last ",elapsedseconds," seconds: ",dwatthr
sensorhistory.addwatthr(dwatthr)
# Determine the minute of the hour (ie 6:42 -> '42')
currminute = (int(time.time())/60) % 10
# Figure out if its been five minutes since our last save
if (((time.time() - sensorhistory.fiveminutetimer) >= 60.0)
and (currminute % 5 == 0)
):
# Print out debug data, Wh used in last 5 minutes
avgwattsused = sensorhistory.avgwattover5min()
print time.strftime("%Y %m %d, %H:%M")+", "+str(sensorhistory.sensornum)+", "+str(sensorhistory.avgwattover5min())+"\n"
# Lets log it! Seek to the end of our log file
if logfile:
logfile.seek(0, 2) # 2 == SEEK_END. ie, go to the end of the file
logfile.write(time.strftime("%Y %m %d, %H:%M")+", "+
str(sensorhistory.sensornum)+", "+
str(sensorhistory.avgwattover5min())+"\n")
logfile.flush()
# Or, send it to the app engine
if not LOGFILENAME:
appengineauth.sendreport(xb.address_16, avgwattsused)
# Reset our 5 minute timer
sensorhistory.reset5mintimer()
# We're going to twitter at midnight, 8am and 4pm
# Determine the hour of the day (ie 6:42 -> '6')
currhour = datetime.datetime.now().hour
# twitter every 8 hours
if (shouldtweet): #((time.time() - twittertimer) >= 3660.0) and (currhour % 8 == 0)):
shouldtweet = False
print "twittertime!"
twittertimer = time.time();
if not LOGFILENAME:
message = appengineauth.gettweetreport()
else:
# sum up all the sensors' data
wattsused = 0
whused = 0
for history in sensorhistories.sensorhistories:
wattsused += history.avgwattover5min()
whused += history.dayswatthr
message = "Currently using "+str(int(wattsused))+" Watts, "+str(int(whused))+" Wh today so far #tweetawatt"
if(incoffee):
message = "Made coffee!!! %s #happyday" % (datetime.datetime.now())
else:
message = "No more coffee %s #sadface" % (datetime.datetime.now())
# write sometdatetime.datetime.now() hindatetime.datetime.now() g ourselves
if message:
print message
TwitterIt(twitterusername, twitterpassword, message)
if GRAPHIT:
# Redraw our pretty picture
fig.canvas.draw_idle()
# Update with latest data
wattusageline.set_ydata(avgwattdata)
voltagewatchline.set_ydata(voltagedata)
ampwatchline.set_ydata(ampdata)
# Update our graphing range so that we always see all the data
maxamp = max(ampdata)
minamp = min(ampdata)
maxamp = max(maxamp, -minamp)
mainsampwatcher.set_ylim(maxamp * -1.2, maxamp * 1.2)
wattusage.set_ylim(0, max(avgwattdata) * 1.2)
def update_graph(idleevent):
global avgwattdataidx, sensorhistories, twittertimer, onlywatchfor
# grab one packet from the xbee, or timeout
packet = xbee.find_packet(ser)
if packet:
xb = xbee(packet)
print xb.address_16
if (onlywatchfor != 0):
if (xb.address_16 != onlywatchfor):
return
print xb
# we'll only store n-1 samples since the first one is usually messed up
voltagedata = [-1] * (len(xb.analog_samples) - 1)
ampdata = [-1] * (len(xb.analog_samples ) -1)
# grab 1 thru n of the ADC readings, referencing the ADC constants
# and store them in nice little arrays
for i in range(len(voltagedata)):
voltagedata[i] = xb.analog_samples[i+1][VOLTSENSE]
ampdata[i] = xb.analog_samples[i+1][CURRENTSENSE]
#print ampdata
# get max and min voltage and normalize the curve to '0'
# to make the graph 'AC coupled' / signed
min_v = 1024 # XBee ADC is 10 bits, so max value is 1023
max_v = 0
for i in range(len(voltagedata)):
if (min_v > voltagedata[i]):
min_v = voltagedata[i]
if (max_v < voltagedata[i]):
max_v = voltagedata[i]
# figure out the 'average' of the max and min readings
avgv = (max_v + min_v) / 2
# also calculate the peak to peak measurements
vpp = max_v-min_v
for i in range(len(voltagedata)):
#remove 'dc bias', which we call the average read
voltagedata[i] -= avgv
# We know that the mains voltage is 120Vrms = +-170Vpp
voltagedata[i] = (voltagedata[i] * MAINSVPP) / vpp
# normalize current readings to amperes
for i in range(len(ampdata)):
# VREF is the hardcoded 'DC bias' value, its
# about 492 but would be nice if we could somehow
# get this data once in a while maybe using xbeeAPI
if vrefs[xb.address_16]:
ampdata[i] -= vrefs[xb.address_16]
else:
ampdata[i] -= vrefs[0]
# the CURRENTNORM is our normalizing constant
# that converts the ADC reading to Amperes
ampdata[i] /= CURRENTNORM
#print "Voltage, in volts: ", voltagedata
#print "Current, in amps: ", ampdata
# calculate instant. watts, by multiplying V*I for each sample point
wattdata = [0] * len(voltagedata)
for i in range(len(wattdata)):
wattdata[i] = voltagedata[i] * ampdata[i]
# sum up the current drawn over one 1/60hz cycle
avgamp = 0
# 16.6 samples per second, one cycle = ~17 samples
# close enough for govt work :(
for i in range(17):
avgamp += abs(ampdata[i])
avgamp /= 17.0
# sum up power drawn over one 1/60hz cycle
avgwatt = 0
# 16.6 samples per second, one cycle = ~17 samples
for i in range(17):
avgwatt += abs(wattdata[i])
avgwatt /= 17.0
# Print out our most recent measurements
print str(xb.address_16)+"\tCurrent draw, in amperes: "+str(avgamp)
print "\tWatt draw, in VA: "+str(avgwatt)
# Add the current watt usage to our graph history
avgwattdata[avgwattdataidx] = avgwatt
avgwattdataidx += 1
if (avgwattdataidx >= len(avgwattdata)):
# If we're running out of space, shift the first 10% out
tenpercent = int(len(avgwattdata)*0.1)
for i in range(len(avgwattdata) - tenpercent):
avgwattdata[i] = avgwattdata[i+tenpercent]
for i in range(len(avgwattdata) - tenpercent, len(avgwattdata)):
avgwattdata[i] = 0
avgwattdataidx = len(avgwattdata) - tenpercent
# retreive the history for this sensor
sensorhistory = findsensorhistory(xb.address_16)
#print sensorhistory
# add up the delta-watthr used since last reading
# Figure out how many watt hours were used since last reading
elapsedseconds = time.time() - sensorhistory.lasttime
dwatthr = (avgwatt * elapsedseconds) / (60.0 * 60.0) # 60 seconds in 60 minutes = 1 hr
sensorhistory.lasttime = time.time()
print "\t\tWh used in last ",elapsedseconds," seconds: ",dwatthr
sensorhistory.addwatthr(dwatthr)
# Determine the minute of the hour (ie 6:42 -> '42')
currminute = (int(time.time())/60) % 10
# Figure out if its been five minutes since our last save
if (((time.time() - sensorhistory.fiveminutetimer) >= 60.0) and (currminute % 5 == 0)):
# Print out debug data, Wh used in last 5 minutes
avgwattsused = sensorhistory.avgwattover5min()
print time.strftime("%Y %m %d, %H:%M"),", ",sensorhistory.cumulativewatthr,"Wh = ",avgwattsused," W average"
# Also, send it to the app engine
appengineauth.sendreport(xb.address_16, avgwattsused)
# Reset our 5 minute timer
sensorhistory.reset5mintimer()
# We're going to twitter at midnight, 8am and 4pm
# Determine the hour of the day (ie 6:42 -> '6')
currhour = datetime.datetime.now().hour
if (((time.time() - twittertimer) >= 3660.0) and (currhour % 8 == 0)):
print "twittertime!"
twittertimer = time.time();
TwitterIt(twitterusername, twitterpassword,
appengineauth.gettweetreport())
# Redraw our pretty picture
fig.canvas.draw_idle()
# Update with latest data
wattusageline.set_ydata(avgwattdata)
voltagewatchline.set_ydata(voltagedata)
ampwatchline.set_ydata(ampdata)
# Update our graphing range so that we always see all the data
maxamp = max(ampdata)
minamp = min(ampdata)
maxamp = max(maxamp, -minamp)
mainsampwatcher.set_ylim(maxamp * -1.2, maxamp * 1.2)
wattusage.set_ylim(0, max(avgwattdata) * 1.2)
def update_graph(idleevent):
global avgwattdataidx, sensorhistories, twittertimer, onlywatchfor
# grab one packet from the xbee, or timeout
packet = xbee.find_packet(ser)
if packet:
xb = xbee(packet)
print xb.address_16
if (onlywatchfor != 0):
if (xb.address_16 != onlywatchfor):
return
print xb
# we'll only store n-1 samples since the first one is usually messed up
voltagedata = [-1] * (len(xb.analog_samples) - 1)
ampdata = [-1] * (len(xb.analog_samples) - 1)
# grab 1 thru n of the ADC readings, referencing the ADC constants
# and store them in nice little arrays
for i in range(len(voltagedata)):
voltagedata[i] = xb.analog_samples[i + 1][VOLTSENSE]
ampdata[i] = xb.analog_samples[i + 1][CURRENTSENSE]
#print ampdata
# get max and min voltage and normalize the curve to '0'
# to make the graph 'AC coupled' / signed
min_v = 1024 # XBee ADC is 10 bits, so max value is 1023
max_v = 0
for i in range(len(voltagedata)):
if (min_v > voltagedata[i]):
min_v = voltagedata[i]
if (max_v < voltagedata[i]):
max_v = voltagedata[i]
# figure out the 'average' of the max and min readings
avgv = (max_v + min_v) / 2
# also calculate the peak to peak measurements
vpp = max_v - min_v
for i in range(len(voltagedata)):
#remove 'dc bias', which we call the average read
voltagedata[i] -= avgv
# We know that the mains voltage is 120Vrms = +-170Vpp
voltagedata[i] = (voltagedata[i] * MAINSVPP) / vpp
# normalize current readings to amperes
for i in range(len(ampdata)):
# VREF is the hardcoded 'DC bias' value, its
# about 492 but would be nice if we could somehow
# get this data once in a while maybe using xbeeAPI
if vrefs[xb.address_16]:
ampdata[i] -= vrefs[xb.address_16]
else:
ampdata[i] -= vrefs[0]
# the CURRENTNORM is our normalizing constant
# that converts the ADC reading to Amperes
ampdata[i] /= CURRENTNORM
#print "Voltage, in volts: ", voltagedata
#print "Current, in amps: ", ampdata
# calculate instant. watts, by multiplying V*I for each sample point
wattdata = [0] * len(voltagedata)
for i in range(len(wattdata)):
wattdata[i] = voltagedata[i] * ampdata[i]
# sum up the current drawn over one 1/60hz cycle
avgamp = 0
# 16.6 samples per second, one cycle = ~17 samples
# close enough for govt work :(
for i in range(17):
avgamp += abs(ampdata[i])
avgamp /= 17.0
# sum up power drawn over one 1/60hz cycle
avgwatt = 0
# 16.6 samples per second, one cycle = ~17 samples
for i in range(17):
avgwatt += abs(wattdata[i])
avgwatt /= 17.0
# Print out our most recent measurements
print str(xb.address_16) + "\tCurrent draw, in amperes: " + str(avgamp)
print "\tWatt draw, in VA: " + str(avgwatt)
# Add the current watt usage to our graph history
avgwattdata[avgwattdataidx] = avgwatt
avgwattdataidx += 1
if (avgwattdataidx >= len(avgwattdata)):
# If we're running out of space, shift the first 10% out
tenpercent = int(len(avgwattdata) * 0.1)
for i in range(len(avgwattdata) - tenpercent):
avgwattdata[i] = avgwattdata[i + tenpercent]
for i in range(len(avgwattdata) - tenpercent, len(avgwattdata)):
avgwattdata[i] = 0
avgwattdataidx = len(avgwattdata) - tenpercent
# retreive the history for this sensor
sensorhistory = findsensorhistory(xb.address_16)
#print sensorhistory
# add up the delta-watthr used since last reading
# Figure out how many watt hours were used since last reading
elapsedseconds = time.time() - sensorhistory.lasttime
dwatthr = (avgwatt * elapsedseconds) / (
60.0 * 60.0) # 60 seconds in 60 minutes = 1 hr
sensorhistory.lasttime = time.time()
print "\t\tWh used in last ", elapsedseconds, " seconds: ", dwatthr
sensorhistory.addwatthr(dwatthr)
# Determine the minute of the hour (ie 6:42 -> '42')
currminute = (int(time.time()) / 60) % 10
# Figure out if its been five minutes since our last save
if (((time.time() - sensorhistory.fiveminutetimer) >= 60.0)
and (currminute % 5 == 0)):
# Print out debug data, Wh used in last 5 minutes
avgwattsused = sensorhistory.avgwattover5min()
print time.strftime(
"%Y %m %d, %H:%M"
), ", ", sensorhistory.cumulativewatthr, "Wh = ", avgwattsused, " W average"
# Also, send it to the app engine
appengineauth.sendreport(xb.address_16, avgwattsused)
# Reset our 5 minute timer
sensorhistory.reset5mintimer()
# We're going to twitter at midnight, 8am and 4pm
# Determine the hour of the day (ie 6:42 -> '6')
currhour = datetime.datetime.now().hour
if (((time.time() - twittertimer) >= 3660.0) and (currhour % 8 == 0)):
print "twittertime!"
twittertimer = time.time()
TwitterIt(twitterusername, twitterpassword,
appengineauth.gettweetreport())
# Redraw our pretty picture
fig.canvas.draw_idle()
# Update with latest data
wattusageline.set_ydata(avgwattdata)
voltagewatchline.set_ydata(voltagedata)
ampwatchline.set_ydata(ampdata)
# Update our graphing range so that we always see all the data
maxamp = max(ampdata)
minamp = min(ampdata)
maxamp = max(maxamp, -minamp)
mainsampwatcher.set_ylim(maxamp * -1.2, maxamp * 1.2)
wattusage.set_ylim(0, max(avgwattdata) * 1.2)
def update_graph(idleevent):
global avgwattdataidx, sensorhistories, twittertimer, DEBUG, currday
# DAW - 5/18/11 - wrap the whole xbee packet inspection code in an exception handler
try:
# grab one packet from the xbee, or timeout
packet = xbee.find_packet(ser)
if not packet:
return # we timedout
xb = xbee(packet) # parse the packet
#print xb.address_16
if DEBUG: # for debugging sometimes we only want one
print xb
# DAW - 5/18/11 - prevent exception that was caused by invalid xbee packet address
if xb.address_16 < 0 or xb.address_16 > len(vrefcalibration):
LogMsg("ERROR - invalid packet address: " + xb.address_16)
return
# we'll only store n-1 samples since the first one is usually messed up
voltagedata = [-1] * (len(xb.analog_samples) - 1)
ampdata = [-1] * (len(xb.analog_samples) - 1)
# grab 1 thru n of the ADC readings, referencing the ADC constants
# and store them in nice little arrays
for i in range(len(voltagedata)):
voltagedata[i] = xb.analog_samples[i + 1][VOLTSENSE]
ampdata[i] = xb.analog_samples[i + 1][CURRENTSENSE]
if DEBUG:
print "ampdata: " + str(ampdata)
print "voltdata: " + str(voltagedata)
# get max and min voltage and normalize the curve to '0'
# to make the graph 'AC coupled' / signed
min_v = 1024 # XBee ADC is 10 bits, so max value is 1023
max_v = 0
for i in range(len(voltagedata)):
if (min_v > voltagedata[i]):
min_v = voltagedata[i]
if (max_v < voltagedata[i]):
max_v = voltagedata[i]
# figure out the 'average' of the max and min readings
avgv = (max_v + min_v) / 2
# also calculate the peak to peak measurements
vpp = max_v - min_v
for i in range(len(voltagedata)):
#remove 'dc bias', which we call the average read
voltagedata[i] -= avgv
# We know that the mains voltage is 120Vrms = +-170Vpp
voltagedata[i] = (voltagedata[i] * MAINSVPP) / vpp
# normalize current readings to amperes
for i in range(len(ampdata)):
# VREF is the hardcoded 'DC bias' value, its
# about 492 but would be nice if we could somehow
# get this data once in a while maybe using xbeeAPI
if vrefcalibration[xb.address_16]:
ampdata[i] -= vrefcalibration[xb.address_16]
else:
ampdata[i] -= vrefcalibration[0]
# the CURRENTNORM is our normalizing constant
# that converts the ADC reading to Amperes
ampdata[i] /= CURRENTNORM
#print "Voltage, in volts: ", voltagedata
#print "Current, in amps: ", ampdata
# calculate instant. watts, by multiplying V*I for each sample point
wattdata = [0] * len(voltagedata)
for i in range(len(wattdata)):
wattdata[i] = voltagedata[i] * ampdata[i]
# sum up the current drawn over one 1/60hz cycle
avgamp = 0
# DAW - 2/26/11 - check for less than 17 samples - would sometimes cause index out of range exception
if (len(ampdata) < 17):
return
# 16.6 samples per second, one cycle = ~17 samples
# close enough for govt work :(
for i in range(17):
avgamp += abs(ampdata[i])
avgamp /= 17.0
# DAW - average of all 18 amp readings
avgamp2 = 0
for i in range(len(ampdata)):
avgamp2 += abs(ampdata[i])
avgamp2 /= len(ampdata)
# DAW - average of all 18 volt readings
avgvolt = 0
for i in range(len(voltagedata)):
avgvolt += abs(voltagedata[i])
avgvolt /= len(voltagedata)
# sum up power drawn over one 1/60hz cycle
avgwatt = 0
# DAW - 2/26/11 - check for less than 17 samples - would sometimes cause index out of range exception
if len(wattdata) < 17:
return
# 16.6 samples per second, one cycle = ~17 samples
for i in range(17):
avgwatt += abs(wattdata[i])
avgwatt /= 17.0
# DAW - average of all 18 watt readings
avgwatt2 = 0
for i in range(len(wattdata)):
avgwatt2 += abs(wattdata[i])
avgwatt2 /= len(wattdata)
except:
LogMsg("Error in packet handling, ignoring")
return
# Print out our most recent measurements
print str(xb.address_16) + "\tCurrent draw, in amperes: " + str(avgamp)
print "\tWatt draw, in VA: " + str(avgwatt)
# DAW print out extra data
print "\t RSSI: " + str(xb.rssi) + " Volt: " + str(
avgvolt) + " Amps: " + str(avgamp2) + " Watts: " + str(avgwatt2)
if (avgamp > 13):
return # hmm, bad data
if GRAPHIT:
# Add the current watt usage to our graph history
avgwattdata[avgwattdataidx] = avgwatt
avgwattdataidx += 1
if (avgwattdataidx >= len(avgwattdata)):
# If we're running out of space, shift the first 10% out
tenpercent = int(len(avgwattdata) * 0.1)
for i in range(len(avgwattdata) - tenpercent):
avgwattdata[i] = avgwattdata[i + tenpercent]
for i in range(len(avgwattdata) - tenpercent, len(avgwattdata)):
avgwattdata[i] = 0
avgwattdataidx = len(avgwattdata) - tenpercent
# retreive the history for this sensor
sensorhistory = sensorhistories.find(xb.address_16)
#print sensorhistory
# add up the delta-watthr used since last reading
# Figure out how many watt hours were used since last reading
elapsedseconds = time.time() - sensorhistory.lasttime
dwatthr = (avgwatt * elapsedseconds) / (
60.0 * 60.0) # 60 seconds in 60 minutes = 1 hr
sensorhistory.lasttime = time.time()
print "\t\tWh used in last ", elapsedseconds, " seconds: ", dwatthr
sensorhistory.addwatthr(dwatthr)
if DEBUG:
print "sensorhistory.avgwattover5min is " + str(
sensorhistory.avgwattover5min())
print time.strftime("%Y %m %d, %H:%M") + ", " + str(
sensorhistory.sensornum) + ", " + str(
sensorhistory.avgwattover5min()) + "\n"
# Determine the minute of the hour (ie 6:42 -> '42')
currminute = (int(time.time()) / 60) % 10
# Figure out if its been five minutes since our last save
if (((time.time() - sensorhistory.fiveminutetimer) >= 60.0)
and (currminute % 5 == 0)):
# Print out debug data, Wh used in last 5 minutes
avgwattsused = sensorhistory.avgwattover5min()
print time.strftime("%Y %m %d, %H:%M") + ", " + str(
sensorhistory.sensornum) + ", " + str(
sensorhistory.avgwattover5min()) + "\n"
# Lets log it! Seek to the end of our log file
if logfile:
logfile.seek(0, 2) # 2 == SEEK_END. ie, go to the end of the file
logfile.write(
time.strftime("%Y %m %d, %H:%M") + ", " +
str(sensorhistory.sensornum) + ", " +
str(sensorhistory.avgwattover5min()) + "\n")
logfile.flush()
# Or, send it to the app engine
if not LOGFILENAME:
appengineauth.sendreport(xb.address_16, avgwattsused)
# DAW - 1/18/11 - log avg watts used to nimbits
# avgwattstosend = "%.2f" % avgwattsused
if NIMBITS_ID:
try:
urllib.urlopen(
"http://gigamega-beta.appspot.com/service/currentvalue?value="
+ str(avgwattsused) + "&point=" + NIMBITS_ID +
"&[email protected]&secret=e90d9c41-6529-4cf8-b248-92335c577cc7"
)
except IOError:
print 'Error sending to nimbits'
# DAW - 2/7/11 - log avg watts used to Pachube
if PACHUBE_ID:
try:
pac.update([
eeml.Data(int(PACHUBE_ID), avgwattsused, unit=eeml.Watt())
]) # unit=eeml.Unit('Volt', type='basicSI', symbol='V'))])
pac.put()
except:
print 'Error sending to Pachube'
# DAW - 8/7/10 - moved here from below - otherwise, reset5mintimer can cause watts to be 0 when tweet occurs
# We're going to twitter at midnight, 8am and 4pm
# Determine the hour of the day (ie 6:42 -> '6')
currhour = datetime.datetime.now().hour
# twitter every 8 hours
# DAW - if debugging, twitter (actually just log to file) every minute
#if ((((time.time() - twittertimer) >= 3660.0) and (currhour % 8 == 0)) or (DEBUG and ((time.time() - twittertimer) >= 60.0))):
# DAW - twitter every 4 hours
if (((time.time() - twittertimer) >= 3660.0) and (currhour % 4 == 0)):
print "twittertime!"
twittertimer = time.time()
if not LOGFILENAME:
message = appengineauth.gettweetreport()
else:
# sum up all the sensors' data
wattsused = 0
whused = 0
if DEBUG:
print "num sensor histories", len(
sensorhistories.sensorhistories)
newday = False
thisday = datetime.datetime.now().day
if currday != thisday:
newday = True
if DEBUG:
message = "New day, clearing dayswatthr " + str(
currday) + " to " + str(thisday)
LogMsg(message)
currday = thisday
for history in sensorhistories.sensorhistories:
if DEBUG:
print "in twitter loop, found history", history.sensornum, history.cumulative5mwatthr
wattsused += history.avgwattover5min()
whused += history.dayswatthr
# DAW - 8/7/10 - clear day's count when day changes
if newday:
history.dayswatthr = 0
message = "Currently using " + str(
int(wattsused)) + " Watts, " + str(
int(whused)) + " Wh today so far #tweetawatt"
# DAW - 8/7/10 - if it's midnight, clear the day's count
# write something ourselves
if message:
print message
# DAW - if debugging, write to CSV file for debug purposes rather than twittering
if DEBUG:
LogMsg(message)
else:
#TwitterIt(twitterusername, twitterpassword, message)
TwitterIt(message)
# Reset our 5 minute timer
sensorhistory.reset5mintimer()
if GRAPHIT:
# Redraw our pretty picture
fig.canvas.draw_idle()
# Update with latest data
wattusageline.set_ydata(avgwattdata)
voltagewatchline.set_ydata(voltagedata)
ampwatchline.set_ydata(ampdata)
# Update our graphing range so that we always see all the data
maxamp = max(ampdata)
minamp = min(ampdata)
maxamp = max(maxamp, -minamp)
mainsampwatcher.set_ylim(maxamp * -1.2, maxamp * 1.2)
wattusage.set_ylim(0, max(avgwattdata) * 1.2)