Pycom WiPy 3.0 Manual page 217

4.3.6 LoRaWAN Nano-Gateway
# TODO: Create a cancel method for the alarm
# TODO: kill the UDP thread
self.sock.close()
def _connect_to_wifi(self):
self.wlan.connect(self.ssid, auth=(None, self.password))
while not self.wlan.isconnected():
time.sleep(0.5)
print("WiFi connected!")
def _dr_to_sf(self, dr):
sf = dr[2:4]
if sf[1] not in '0123456789':
sf = sf[:1]
return int(sf)
def _sf_to_dr(self, sf):
return "SF7BW125"
def _make_stat_packet(self):
now = self.rtc.now()
STAT_PK["stat"]["time"] = "%d-%02d-%02d %02d:%02d:%02d GMT" % (now[0], now[1],
now[2], now[3], now[4], now[5])
STAT_PK["stat"]["rxnb"] = self.rxnb
STAT_PK["stat"]["rxok"] = self.rxok
STAT_PK["stat"]["rxfw"] = self.rxfw
STAT_PK["stat"]["dwnb"] = self.dwnb
STAT_PK["stat"]["txnb"] = self.txnb
return json.dumps(STAT_PK)
def _make_node_packet(self, rx_data, rx_time, tmst, sf, rssi, snr):
RX_PK["rxpk"][0]["time"] = "%d-%02d-%02dT%02d:%02d:%02d.%dZ" % (rx_time[0], rx
_time[1], rx_time[2], rx_time[3], rx_time[4], rx_time[5], rx_time[6])
RX_PK["rxpk"][0]["tmst"] = tmst
RX_PK["rxpk"][0]["datr"] = self._sf_to_dr(sf)
RX_PK["rxpk"][0]["rssi"] = rssi
RX_PK["rxpk"][0]["lsnr"] = float(snr)
RX_PK["rxpk"][0]["data"] = ubinascii.b2a_base64(rx_data)[:-1]
RX_PK["rxpk"][0]["size"] = len(rx_data)
return json.dumps(RX_PK)
def _push_data(self, data):
token = os.urandom(2)
packet = bytes([PROTOCOL_VERSION]) + token + bytes([PUSH_DATA]) + ubinascii.un
hexlify(self.id) + data
with self.udp_lock:
try:
self.sock.sendto(packet, self.server_ip)
except Exception:
print("PUSH exception")
def _pull_data(self):
token = os.urandom(2)
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