def sendAuth(self):
answer = False
log.info('Trying to authenticate to kettle...')
try:
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) + "ff" +
self.__key + "aa") #send authorise key
self.child.expect("value: ") # wait for response
self.child.expect("\r\n") # wait for end string
log.debug(self.child.before) #for debug
connectedStr = self.child.before[0:].decode(
"utf-8") # answer from device
answ = connectedStr.split()[3] # parse: 00 - no 01 - yes
self.child.expect(r'\[LE\]>')
if answ == '01':
answer = True
self.auth = True
log.info('Successfully authenticated')
else:
log.info('Could not authenticate')
self.auth = False
self.iterase()
except:
answer = False
log.error('Authentication error')
return answer
def firstConnect(self):
self.__is_busy = True #will eventually force disconnet
iter = 0
itera = 0
try:
while iter < CONF_MAX_CONNECT_ATTEMPTS: # 10 attempts to connect
log.info("Connection attempt #%s" % (iter))
if self.connect():
iter = 11 #to break
while itera < CONF_MAX_AUTH_ATTEMPTS: # 10 attempts to auth
log.info("Authentication attempt #%s" % (itera))
if self.sendSubcribeToResponses():
if self.sendAuth():
break
sleep(1)
itera += 1
sleep(1)
iter += 1
except:
log.error('Error during first connect')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]))
self.reset()
if self.auth:
self.ready = True
self.sendInitialSettings()
else:
log.error('Error during first connect: not authenticated')
self.reset()
return self.auth
def connect(self):
answer = False
if self.__is_busy:
log.info("Busy")
self.disconnect()
try:
log.info("Trying to connect to kettle [%s]..." % (self.__mac))
self.__is_busy = True
self.child = pexpect.spawn("gatttool -I -t random -b " +
self.__mac,
ignore_sighup=False)
self.child.expect(r'\[LE\]>', timeout=1)
self.child.sendline("connect")
self.child.expect(r'Connection successful.*\[LE\]>', timeout=1)
log.debug(self.child.after)
self.__is_busy = False
answer = True
self.connected = True
log.info("Connected")
except:
log.error('Error during connection attempt')
log.debug("Unexpected error info:" +
str(sys.exc_info()[0])) #+str(sys.exc_info()[1])
self.connected = False
return answer
def sendGetStatus(self):
answ = False
log.info("Starting getting current status...")
try:
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) +
"06aa") # status of device
self.child.expect("value: ")
self.child.expect("\r\n")
statusStr = self.child.before[0:].decode(
"utf-8"
) # answer from device example 55 xx 06 00 00 00 00 01 2a 1e 00 00 00 00 00 00 80 00 00 aa
log.debug(statusStr)
answer = statusStr.split()
self.status = str(answer[11])
self.temp = self.hexToDec(str(answer[8]))
self.mode = str(answer[3])
tgtemp = str(answer[5])
if tgtemp != '00':
self.tgtemp = self.hexToDec(tgtemp)
else:
self.tgtemp = 100
self.durat = str(answer[16])
self.child.expect(r'\[LE\]>')
self.iterase()
log.info(
"Status aquired [mode = %s, targettemp = %s, temp = %s, status = %s (00 off, 02 on), durat = 0x%s]"
% (self.mode, self.tgtemp, self.temp, self.status, self.durat))
answ = True
except:
answ = False
log.error('error get status')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]))
return answ
def sendSetMode(
self, mode, target_temp, boilduration_correction
): # 00 - boil 01 - heat to temp 03 - backlight (boil by default) temp - in DEC
answ = False
log.info("Starting set current mode and parameters...")
try:
modest = mode if len(str(mode)) == 2 else "0" + str(mode)
#log.debug("Mode:" + modest)
boildurationHex = self.decToHex(
self.hexToDec("80") + int(boilduration_correction))
#log.debug("Boil dur:" + boildurationHex)
if modest == "01" or modest == "02":
target_temp = min(target_temp,
91) #max allowed 90 in mode 1 & 2
sendline = "0x000e 55" + self.decToHex(
self.__iter) + "05" + modest + "00" + self.decToHex(
target_temp
) + "00000000000000000000" + boildurationHex + "0000aa"
log.debug("Sending command string: [" + sendline + "]")
self.child.sendline("char-write-req " + sendline) # set Properties
self.child.expect("value: ")
self.child.expect("\r\n")
log.debug(str(self.child.before) + " [should be 55 05 05 >01< aa]")
answer = self.child.before.split()
log.debug("Ok:" + str(answer[3] == b"01"))
self.child.expect(r'\[LE\]>')
self.iterase()
answ = answer[3] == b"01"
except Exception as e:
answ = False
log.error('Error seting mode')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]) + "|" +
str(sys.exc_info()[1]))
return answ
def sendSetLightsColor(self,
boilOrLight='00',
rgb1='0000ff',
rgb2='ff0000'): # 00 - boil light 01 - backlight
answ = False
log.info("Sending set lights color command...")
try:
if rgb1 == '0000ff' and rgb2 == 'ff0000':
rgb_mid = '00ff00'
else:
rgb_mid = self.calcMidColor(rgb1, rgb2)
if boilOrLight == "00":
scale_light = ['28', '46', '64']
else:
scale_light = ['00', '32', '64']
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) + "32" +
boilOrLight + scale_light[0] + self.__rand +
rgb1 + scale_light[1] + self.__rand + rgb_mid +
scale_light[2] + self.__rand + rgb2 + "aa")
self.child.expect("value: ")
self.child.expect("\r\n")
log.debug(str(self.child.before) + " [should be 55 09 32 00 aa]")
self.child.expect(r'\[LE\]>')
self.iterase()
log.info("Set lights color command complete")
answ = True
except:
answ = False
log.error('error set colors of light')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]))
return answ
def sendSync(self, timezone=3):
answ = False
log.info("Syncing kettle...")
try:
tmz_hex_list = wrap(str(self.decToHex(timezone * 60 * 60)), 2)
tmz_str = ''
for i in reversed(tmz_hex_list):
tmz_str += i
timeNow_list = wrap(
str(self.decToHex(time.mktime(datetime.now().timetuple()))), 2)
timeNow_str = ''
for i in reversed(timeNow_list):
timeNow_str += i
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) + "6e" +
timeNow_str + tmz_str + "0000aa")
self.child.expect("value: ")
self.child.expect("\r\n")
log.debug(str(self.child.before) + " [should be 55 02 6e 00 aa]")
self.child.expect(r'\[LE\]>')
self.iterase()
log.info("Syncing kettle complete")
answ = True
except:
answ = False
log.error('error sync time')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]))
return answ
def sendSubcribeToResponses(self):
answ = False
log.info('Trying to subcsribe to kettle notifications...')
try:
self.child.sendline("char-write-cmd 0x000c 0100"
) #send packet to receive messages in future
self.child.expect(r'\[LE\]>')
log.info('Successfully subscribed to notifications')
answ = True
except:
answ = False
log.error('Error during device subscription')
return answ
def sendStop(self):
answ = False
log.info("Switching off kettle...")
try:
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) + "04aa") # OFF
self.child.expect("value: ")
self.child.expect("\r\n")
log.debug(str(self.child.before) + " [should be 55 06 04 >01< aa]")
answer = self.child.before.split()
log.debug("Ok:" + str(answer[3] == b"01"))
self.child.expect(r'\[LE\]>')
self.iterase()
answ = answer[3] == b"01"
#log.info ("Kettle switched off successfully")
except:
answ = False
log.error('error starting mode OFF')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]))
return answ
def sendUseBackLight(self, use=True):
answ = False
log.info("Sending Use backlight command...")
onoff = "00"
if use:
onoff = "01"
try:
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) + "37c8c8" + onoff +
"aa") # onoff: 00 - off, 01 - on
self.child.expect("value: ")
self.child.expect("\r\n")
log.debug(str(self.child.before) + " [should be 55 08 32 00 aa]")
self.child.expect(r'\[LE\]>')
self.iterase()
log.info("Use backlight command is complete")
answ = True
except:
answ = False
log.error('error set use backlight')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]))
return answ
def sendGetStat(self):
answ = False
log.info("Starting quering statistics...")
try:
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) + "4700aa")
self.child.expect("value: ")
self.child.expect("\r\n")
statusStr = self.child.before[0:].decode("utf-8")
log.debug(statusStr)
self.Watts = self.hexToDec(
str(statusStr.split()[11] + statusStr.split()[10] +
statusStr.split()[9])) # in Watts
self.Alltime = round(self.Watts / CONF_KETTLE_POWER, 1) # in hours
self.child.expect(r'\[LE\]>')
self.iterase()
self.child.sendline("char-write-req 0x000e 55" +
self.decToHex(self.__iter) + "5000aa")
self.child.expect("value: ")
self.child.expect("\r\n")
statusStr = self.child.before[0:].decode("utf-8")
self.Times = self.hexToDec(
str(statusStr.split()[7] + statusStr.split()[6]))
self.child.expect(r'\[LE\]>')
self.iterase()
log.info(
"Statistics aquired [watts = %s, alltime = %s, times = %s]" %
(self.Watts, self.Alltime, self.Times))
answ = True
except:
answ = False
log.error('error geting statistics')
log.debug("Unexpected error info:" + str(sys.exc_info()[0]))
return answ