def get_time(rtc, logger):
if gps_lock.locked():
logger.debug("Waiting for other gps thread to finish")
with gps_lock:
logger.info("Getting UTC datetime via GPS")
serial, chrono, indicator_led = gps_init(logger) # initialize serial and timer
com_counter = int(chrono.read()) # counter for checking whether gps is connected
message = False # no message while terminal is disabled (by default)
while True:
# data_in = '$GPRMC,085258.000,A,5056.1384,N,00123.1522,W,0.00,159.12,200819,,,A*7E\r\n'
data_in = (str(serial.readline()))[1:]
if (int(chrono.read()) - com_counter) >= 10:
gps_deinit(serial, logger, message, indicator_led)
logger.error("GPS enabled, but not connected")
return False
if data_in[1:4] != "$GP":
time.sleep(1)
else:
for char in data_in:
sentence = gps.update(char)
if sentence == "GPRMC":
com_counter = int(chrono.read())
if gps.valid:
# Set current time on pycom - convert seconds (timestamp[2]) from float to int
datetime = (int('20' + str(gps.date[2])), gps.date[1], gps.date[0], gps.timestamp[0],
gps.timestamp[1], int(gps.timestamp[2]), 0, 0)
rtc.init(datetime)
# Set current time on RTC module if connected - convert seconds (timestamp[2]) from float to int
h_day, h_mnth, h_yr = int(str(gps.date[0]), 16), int(str(gps.date[1]), 16), int(str(gps.date[2]),
16)
h_hr, h_min, h_sec = int(str(gps.timestamp[0]), 16), int(str(gps.timestamp[1]), 16), int(
str(int(gps.timestamp[2])), 16)
try:
clock.set_time(h_yr, h_mnth, h_day, h_hr, h_min, h_sec)
message = """GPS UTC datetime successfully updated on pycom board
GPS UTC datetime successfully updated on RTC module"""
except Exception:
message = """GPS UTC datetime successfully updated on pycom board
Failed to set GPS UTC datetime on the RTC module"""
gps_deinit(serial, logger, message, indicator_led)
return True
# If timeout elapsed exit function or thread
if chrono.read() >= int(config.get_config("GPS_timeout")):
gps_deinit(serial, logger, message, indicator_led)
logger.error("""GPS timeout
Check if GPS module is connected
Place device under clear sky
Increase GPS timeout in configurations""")
return False
def process_data(received_data, logger):
"""
Processes form sent by the user as a json string and saves new configurations. Also updates time on the RTC module.
:param received_data: json string received from the web socket
:type received_data: str
:param logger: status logger
:type logger: LoggerFactory
:return: True or False
:rtype: bool
"""
# find json string in received message
first_index = received_data.rfind("time_begin")
last_index = received_data.rfind("time_end")
if first_index != -1 and last_index != -1:
config_time_str = received_data[(first_index +
len("time_begin")):last_index]
config_time_lst = config_time_str.split(":")
config_time_lst[0] = config_time_lst[0][2:]
h_yr, h_mnth, h_day, h_hr, h_min, h_sec = (
int(config_time_lst[0], 16),
int(config_time_lst[1], 16),
int(config_time_lst[2], 16),
int(config_time_lst[3], 16),
int(config_time_lst[4], 16),
int(config_time_lst[5], 16),
)
try:
clock.set_time(h_yr, h_mnth, h_day, h_hr, h_min, h_sec)
logger.info("RTC module calibrated via WiFi")
except Exception:
logger.warning(
"RTC module is not available for calibration via WiFi")
# find json string in received message
first_index = received_data.rfind("json_str_begin")
last_index = received_data.rfind("json_str_end")
if first_index != -1 and last_index != -1:
config_json_str = received_data[(first_index +
len("json_str_begin")):last_index]
new_config_dict = {
"LORA": "OFF"
} # checkbox default value is false - gets overwritten if its true
new_config_dict.update(ujson.loads(config_json_str))
if len(config_json_str) >= 1000:
logger.error("Received configurations are too long")
logger.info("Enter configurations with valid length")
return False # keep looping - wait for new message from client
logger.info("Configuration data received from user")
config.save_config(new_config_dict)
return True
return False # keep looping - wait for new message from client
def process_data(received_data, logger):
# find json string in received message
first_index = received_data.rfind('time_begin')
last_index = received_data.rfind('time_end')
if first_index != -1 and last_index != -1:
config_time_str = received_data[(first_index +
len('time_begin')):last_index]
config_time_lst = config_time_str.split(':')
config_time_lst[0] = config_time_lst[0][2:]
h_yr, h_mnth, h_day, h_hr, h_min, h_sec = int(config_time_lst[0], 16), int(config_time_lst[1], 16), \
int(config_time_lst[2], 16), int(config_time_lst[3], 16), \
int(config_time_lst[4], 16), int(config_time_lst[5], 16)
try:
clock.set_time(h_yr, h_mnth, h_day, h_hr, h_min, h_sec)
logger.info('RTC module calibrated via WiFi')
except Exception:
logger.warning(
'RTC module is not available for calibration via WiFi')
# find json string in received message
first_index = received_data.rfind('json_str_begin')
last_index = received_data.rfind('json_str_end')
if first_index != -1 and last_index != -1:
config_json_str = received_data[(first_index +
len('json_str_begin')):last_index]
new_config_dict = ujson.loads(config_json_str)
if len(config_json_str) >= 1000:
logger.error('Received configurations are too long')
logger.info('Enter configurations with valid length')
return False # keep looping - wait for new message from client
logger.info('Configuration data received from user')
config.save_configuration(new_config_dict)
return True
return False # keep looping - wait for new message from client