def lte_connect(hw):
total_chrono.start()
lte = None
signal_quality = None
with TimedStep("LTE init"):
pycom.nvs_set("lte_on", True)
lte = network.LTE()
with TimedStep("LTE attach"):
lte.attach()
try:
while True:
wdt.feed()
if lte.isattached(): break
if tschrono.read_ms() > 150 * 1000: raise TimeoutError("Timeout during LTE attach")
time.sleep_ms(50)
finally:
try:
signal_quality = pycom_util.lte_signal_quality(lte)
_logger.info("LTE attached: %s. Signal quality %s", lte.isattached(), signal_quality)
co2unit_errors.info(hw, "Comm cycle. LTE attached: {}. Signal quality {}".format(lte.isattached(), signal_quality))
except:
_logger.exception("While trying to measure and log signal strength")
with TimedStep("LTE connect"):
lte.connect()
while True:
wdt.feed()
if lte.isconnected(): break
if tschrono.read_ms() > 120 * 1000: raise TimeoutError("Timeout during LTE connect (%s)")
time.sleep_ms(50)
return lte, signal_quality
def forceRTC(dt, type_dt):
global rtc
try:
# dt = pycom.nvs_get('rtc')
if type_dt == "tuple":
print("Step RTC - Forcing Tuple RTC to " + str(dt))
rtc.init(dt)
elif type_dt == "epoch":
print("Step RTC - Forcing Epoch RTC to " + str(int(dt)))
rtc.init(utime.gmtime(int(dt)))
utime.sleep(3)
tools.debug("Setting time: " + str(int(utime.time())), "v")
try:
pycom.nvs_set('clock', str(int(utime.time())))
except OSError as err:
tools.debug("Error setting RTC: " + str(err), "v")
utime.sleep(5)
try:
dt_current = pycom.nvs_get('clock')
except OSError as err:
dt_current = -1
tools.debug("Error getting RTC: " + str(err), "v")
tools.debug(
"Current time: " + str(int(dt_current)) + " - RTC: " +
str(getDatetime()), "v")
except Exception as e1:
checkError("Step RTC - Error initializing parametetr", e1)
def cleanup():
try:
uos.unlink(__filename())
pycom.nvs_set('queue_size', 0)
except OSError as e:
print('error while removing data file: {}'.format(e.errno))
pass
def getResetCause():
try:
reset_cause = machine.reset_cause()
debug(
"Reset cause: " + str(reset_cause) + " - Sleeping secs: " +
str(globalVars.deepSleepSec), "v")
try:
globalVars.deepSleepSec = pycom.nvs_get('deepSleepSecs')
except BaseException as ea:
checkError("Error getting flash value of", ea)
if globalVars.deepSleepSec == 0:
debug("Coming from other reasons", "v")
BeepBuzzer(1)
elif globalVars.deepSleepSec > 0:
pycom.nvs_set('deepSleepSecs', 0)
globalVars.deepSleepSec = 0
if synchronizeRTC():
globalVars.flag_rtc_syncro = True
BeepBuzzer(0.2)
else:
debug("Another reason for the reset", "v")
BeepBuzzer(1)
except BaseException as e:
checkError("Error getting reset cause", e)
def nvs_transmit():
while True:
time.sleep(5)
try:
os.stat('data.dat')
exists = True
except:
exists = False
if exists:
gc.collect()
gc.mem_free()
p0 = int(pycom.nvs_get('p0'))
p1 = int(pycom.nvs_get('p1'))
pycom.nvs_set('t', p1)
if p1 > p0:
print (p0)
print (p1)
f1 = open('data.dat', 'rb')
f1.seek(p0)
payload = binascii.hexlify(f1.read(p1-p0))
print(payload)
f1.close()
sendATcommandPOST(payload)
print("Transmission completed")
def make_payload():
pycom.rgbled(blue)
#distance = distance_median()
count = pycom.nvs_get('dist')
utime.sleep_us(100)
#randomize water distance
distance = os.urandom(1)[0]
print("distance = {0} inches".format(distance))
utime.sleep_ms(100)
#subract 0.1V from battery voltage every 5 counts
c = count
v = pycom.nvs_get('v')
if c % 5 == 0:
v += 1
pycom.nvs_set('v', v)
print("v={0}".format(v))
voltage = 4.0 - v * 0.1
print("Measured Voltage: {0}V".format(voltage))
#randomize flow rate
x = os.urandom(1)[0]
flow_rate = x % 4
if (flow_rate < 3):
print(flow_rate)
else:
flow_rate -= 1
print(flow_rate)
print("Flow Rate: {0}".format(flow_rate))
#generate encoded packet to send to webapp
full_packet = ustruct.pack('f', count) + ustruct.pack(
'f', float(distance)) + ustruct.pack('f', voltage) + ustruct.pack(
'f', float(flow_rate))
return full_packet
def registerDevice(self):
# Register Device !
try:
print(" Registering device ")
myobj = {}
myobj["mac"] = ubinascii.hexlify(machine.unique_id(), ':').decode()
myobj["firmware_version"] = "1.0.0"
headers = {
"Content-Type": "application/json",
"x-access-token": self.authToken
}
x = post(config.register, json=myobj, headers=headers)
# print(x.text)
firmware_version = x.json()
try:
pycom.nvs_set("fwversion",
firmware_version["firmware_version"])
print("Fw version value set !")
except:
pycom.nvs_set("fwversion", "0")
print("Failed to set firmware version")
if x.status_code == 200:
print("Device Registered")
except Exception as e:
print("failed to register device: ", e)
def checkRollout(self):
try:
print("......Checking for rollouts............")
# check device next rollout
myobj = {}
myobj["mac"] = ubinascii.hexlify(machine.unique_id(), ':').decode()
myobj["firmware_version"] = "1.0.0"
headers = {
"Content-Type": "application/json",
"x-access-token": self.authToken
}
x = post(config.checkRollout, json=myobj, headers=headers)
if x.status_code == 200:
print(x.text)
next_rollout = x.json()
if "rollout_id" in next_rollout:
print(" rollout ID exists ")
pycom.nvs_set("rolloutid", next_rollout["rollout_id"])
self.rolloutid = next_rollout["rollout_id"]
self.firmware_id = next_rollout["firmware_id"]
print("....Rollout ID set....")
return True
else:
print(" --- No new Rollout avaliable ----")
return False
except Exception as e:
print("Check Rollout failed: ", e)
def flash_detect_main():
flash_counter = pycom.nvs_get('flash_counter')
if flash_counter is None:
flash_counter = 0
flash_counter += 1
pycom.nvs_set('flash_counter', flash_counter)
go_back_to_sleep()
def test_pycom_nv_set_get(self):
pycom.nvs_set("test_key_asdf", 1234)
val = pycom.nvs_get("test_key_asdf")
self.assertEqual(val, 1234)
pycom.nvs_set("test_key_asdf", 5678)
val = pycom.nvs_get("test_key_asdf")
self.assertEqual(val, 5678)
def aggregate():
try:
pycom.nvs_set('val', int(pycom.nvs_get('val')) + 1)
except:
pycom.nvs_set('val', 0)
print('Deepsleep Remaining: ' + str(machine.remaining_sleep_time()))
print('New Aggregate: ' + str(pycom.nvs_get('val')))
print('Current Message ID: ' + str(pycom.nvs_get('msgID')))
def run(self):
flash_count = nvs_get_default("co2_flash_count", 0)
import co2unit_measure
co2unit_measure.wdt = wdt
co2unit_measure.measure_sequence(hw, flash_count=flash_count)
_logger.info("Resetting flash count after recording it")
pycom.nvs_set("co2_flash_count", flash_count)
def send(self, data: bytes):
if self._sock is None:
self._sock = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
self._sock.setsockopt(socket.SOL_LORA, socket.SO_DR, 5)
self._sock.setblocking(True)
self._sock.send(data)
self._sock.setblocking(False)
self._air_time = self._air_time_base + self._lora.stats().tx_time_on_air
pycom.nvs_set('air', self._air_time)
def LoRaSend(val,ch):
sl = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
sl.setblocking(True)
sl.send(encrypt(SITE+mac()+'/'+ch+'&'+val)) # Send on LoRa Network & wait Reply
sl.setblocking(False)
try:
pycom.nvs_set('msgID',pycom.nvs_get('msgID')+1)
except:
pycom.nvs_set('msgID',0)
print("Sent",ch)
def char_cb(chr):
global srv
events = chr.events()
if events & Bluetooth.CHAR_READ_EVENT:
print('read', chr)
if events & Bluetooth.CHAR_WRITE_EVENT:
print('write', chr.value())
pycom.nvs_set('ble', 1)
srv.stop()
logger.GATT = True
def __init__(self, bq25895):
self._bq25895 = bq25895
self.adc = ADC()
self.p_SHDN_ = Pin('P21', mode=Pin.OUT) #shutdown/enable ampli op
self.pwr_ticks = utime.ticks_us()
try:
pycom.nvs_get("pwr_uAH")
except Exception as e:
pycom.nvs_set("pwr_uAH", 0)
self.pwr_nAH = 0
self.__alarm = Timer.Alarm(self.mesure, 1, periodic=True)
def deep_sleep():
id = pycom.nvs_get('msg_id')
pycom.nvs_set('msg_id', id + 1)
print('Start deep sleep...')
py.setup_int_pin_wake_up(True)
py.setup_int_wake_up(False, True)
#py.setup_sleep(3600) # 1 hour
py.setup_sleep(600) # 10 min
deep_sleep_led()
py.go_to_sleep()
def _record_seq_ack(self, buffer_file, seq, ack):
if self.use_nvs:
pycom.nvs_set("wkb" + str(_SEQ_ID_IDX), seq)
pycom.nvs_set("wkb" + str(_ACK_ID_IDX), ack)
return
packed_seq_id = struct.pack(_POS_VALUE_FORMAT, seq)
packed_ack_id = struct.pack(_POS_VALUE_FORMAT, ack)
buffer_file.seek(_SEQ_ID_IDX)
buffer_file.write(packed_seq_id)
buffer_file.seek(_ACK_ID_IDX)
buffer_file.write(packed_ack_id)
def mesure(self, alarm):
old = self.pwr_ticks
self.pwr_ticks = utime.ticks_us()
delta = utime.ticks_diff(self.pwr_ticks, old)
self.pwr_nAH = self.pwr_nAH + int(self.getPWR() * delta / 3600)
uAH = self.pwr_nAH // 1000
#print("nAH : {}, uAH : {}".format(self.pwr_nAH, uAH))
if uAH > 0:
self.pwr_nAH = self.pwr_nAH - (uAH * 1000)
uAH = pycom.nvs_get("pwr_uAH") + uAH
#print("pwr_uAH :{}".format(uAH))
pycom.nvs_set("pwr_uAH", uAH)
def receive(self, rx=None):
if len(rx) == 0: #No hay mensaje de recepción
pass
else:
if rx[0] == 82: #Orden de Cambio Data Rate (ASCII hex R=0x52 dec 87)
print("Cambiando Data Rate %d" %
(int.from_bytes(rx[1:], 'big')))
self.dr = int.from_bytes(
rx[1:], 'big') #Decodifica el valor del nuevo data Rate
pycom.nvs_set('data_rate', self.data_rate) #Lo guarda en NVRAM
else:
pass
def myEnd(debug=False):
heartbeat(False); nvs_set('myReset',ticks_ms()/1000)
if debug or (ticks_ms() > 30*60*1000):
myLed = LEDblink(alarm=15)
else: myLed = LEDblink(count=1,alarm=(60*10))
while True:
if not myLed.max: break
if myLed.max < 0: sleep_ms(15*1000)
else: sleep_ms(60*60*1000)
if debug: print("system reset"); sleep(1)
reset()
def nvs_get(key, default_value=0):
""" Get value for key from NVRAM. Create the key if it does not exist.
:param str key:
:param int default_value: value to use when creating the key
:return value int: (NVRAM can only store integers)
"""
value = pycom.nvs_get(key)
if value is None:
pycom.nvs_set(key, int(default_value))
value = int(default_value)
return value
def sendATcommandPOST(payload):
uart.readall()
if (sendATcommandNoEcho('ATE0') != 'MODEM_OK'): error_handler()
print("Disabled echo")
if (sendATcommandReset('AT+CFUN=1,1') != 'MODEM_OK'): error_handler()
time.sleep(15)
uart.readall()
print("Modem Reset")
if (sendATcommandNoEcho('ATE0') != 'MODEM_OK'): error_handler()
print("Disabled echo")
if (sendATcommand('AT+SAPBR=3,1,"Contype","GPRS"', 'OK') != 'MODEM_OK'): error_handler()
print("Set GPRS contex")
if (sendATcommand('AT+SAPBR=3,1,"APN","'+CONFIG_APN+'"', 'OK') != 'MODEM_OK'): error_handler()
print("Set APN")
while True:
if(checkGPRS() == 'MODEM_OK'):
print("Attached to GPRS network")
if (sendATcommand('AT+SAPBR=3,1,"Contype","GPRS"', 'OK') != 'MODEM_OK'): error_handler()
print("Set GPRS contex")
if (sendATcommand('AT+SAPBR=3,1,"APN","'+CONFIG_APN+'"', 'OK') != 'MODEM_OK'): error_handler()
print("Set APN")
if (sendATcommand('AT+HTTPINIT', 'OK') != 'MODEM_OK'): error_handler()
print("Configured HTTP parameters AT+HTTPINIT")
if (sendATcommand('AT+HTTPPARA="CID",1', 'OK') != 'MODEM_OK'): error_handler()
print("Configured HTTP parameters CID")
if (sendATcommand('AT+HTTPPARA="CONTENT","application/json"', 'OK') != 'MODEM_OK'): error_handler()
print("Configured HTTP parameters CONTENT")
if (sendATcommand('AT+HTTPPARA="URL","http://'+CONFIG_URL+'"', 'OK') != 'MODEM_OK'): error_handler()
print("Configured HTTP parameters URL")
if (sendATcommand('AT+HTTPDATA='+str(len(str(payload,"utf-8"))+18)+',5000', 'DOWNLOAD') != 'MODEM_OK'): error_handler()
print("Configured HTTP parameters AT+HTTPDATA and ready to push payload")
if (sendATcommand('d='+str(payload,"utf-8")+'&m=867622011165381', 'OK') != 'MODEM_OK'): error_handler()
print("Payload pushed")
if (sendData() == 'MODEM_OK'):
pycom.nvs_set('p0', int(pycom.nvs_get('t')))
print("Data succesfully sent!")
return("MODEM_OK")
else:
print ("ERROR: Server offline need to try again later")
return("ERROR")
def writeLongList(self, name, longVars, maxLen):
i = 0
while i < len(longVars) and i < maxLen:
pycom.nvs_set(name + str(i) + 'l',
struct.unpack(">I", longVars[i][-4:])[0])
pycom.nvs_set(name + str(i) + 'm',
struct.unpack(">H", longVars[i][0:2])[0])
i = i + 1
try:
pycom.nvs_erase(name + str(i) + 'l')
pycom.nvs_erase(name + str(i) + 'm')
except:
return
else:
return
def debug_level(level):
global DEBUG
if level is None:
try:
ret = pycom.nvs_get('pymesh_debug')
except:
ret = None
return ret
try:
ret = int(level)
except:
return
DEBUG = ret
pycom.nvs_set('pymesh_debug', DEBUG)
def on_boot_fn(value=None, default=default, erase=False):
if erase:
return nvs_erase(key)
elif value == None:
return nvs_get(key, default=default)
else:
return pycom.nvs_set(key, value)
def PowerFailCb(logger):
power_fail = Pin(POWER_FAIL_PIN)
if debouncedPFSignal(power_fail) == 1:
#stopTasksButLora() # save power by leaving all non essential tasks ASAP
pycom.nvs_set(POWER_FAIL_STATE, MODE_POWER_FAIL)
unixLocalTime= time.time() + time.timezone()
pycom.nvs_set(POWER_FAIL_TS, unixLocalTime)
currentAlarmLoraMessageToSend = buildPFAlarmMessage(unixLocalTime)
lora_queue_immediate_semaphore.acquire(0)
rand=int(getRandom() * 2000) # 0-2000 value
time.sleep_ms(rand) # just randow m wait of 3s
LoraQueueImmediate.put(currentAlarmLoraMessageToSend)
lora_queue_immediate_semaphore.acquire(1,2) # wait 2s max for msg to be sent by the Lora task
time.sleep_ms(WAIT_TIME_BEFORE_SLEEP) # time for the LoRA MAC layer to send that message
rand=int(getRandom() * 20) # 0-20 value
machine.deepsleep((WAKEUP_DELAY+rand)*1000) # GO TO SLEEP NOW AND PRESERVE POWER
def lte_deinit(lte):
if not lte: return
try:
if lte.isconnected():
with TimedStep("LTE disconnect"):
lte.disconnect()
if lte.isattached():
with TimedStep("LTE detach"):
lte.detach()
finally:
with TimedStep("LTE deinit"):
lte.deinit()
pycom.nvs_set("lte_on", False)
def _connect_and_send(network):
# TODO: pridat casovace
if network == 0: # wifi
pycom.rgbled(0x003300)
if wifi_connect():
if wifi_send() == 1:
pycom.rgbled(0x000000)
logger.W = True
return True
else:
debug_led(0x330000, 0.3)
logger.W = False
return False
else:
debug_led(0x330000, 0.3)
logger.W = False
return False
if network == 1: # ble
pycom.rgbled(0x030033) # blue
pycom.nvs_set('ble', 0)
gatt_connect()
gatt_service()
for _ in range(10):
idle()
sleep(3)
ble = pycom.nvs_get('ble')
if ble == 1:
debug_led(0x003300, 0.3)
logger.B = True
return True
else:
debug_led(0x330000, 0.3)
logger.B = False
return False
if network == 2: # Sigfox
pycom.rgbled(0x090114)
ret = sigfox_send()
pycom.rgbled(0x000000)
if ret == 5:
logger.S = True
return True
logger.S = False
return False
def _int_handler(self, pin_o):
l.info("BQ>BQ25895 interrupt")
REG0C1 = self.read_byte(
0x0C) #1st read reports the pre-existing fault register
REG0C2 = self.read_byte(
0x0C) #2nd read reports the current fault register status
REG0B = self.read_byte(
0x0B) #2nd read reports the current fault register status
l.debug("0x0C1st:{:08b} 0x0C2nd:{:08b} 0x0B:{:08b}".format(
REG0C1, REG0C2, REG0B))
if self.pg_stat_last != REG0B & 0b00000100:
self.pg_stat_last = REG0B & 0b00000100
if REG0B & 0b00000100 > 1:
print("RAZ pwr_uAH ")
pycom.nvs_set("pwr_uAH", 0)
if self._user_handler is not None:
self._user_handler(REG0C1, REG0C2, REG0B)