Pycom FiPy, Руководство пользователя, Страница: 316 / 496

class LoRa
This class provides a LoRaWAN 1.0.2 compliant driver for the LoRa network processor in
the LoPy and FiPy. Below is an example demonstrating LoRaWAN Activation by
Personalisation usage:
from network import LoRa
import socket
import ubinascii
import struct
# Initialise LoRa in LORAWAN mode.
# Please pick the region that matches where you are using the device:
# Asia = LoRa.AS923
# Australia = LoRa.AU915
# Europe = LoRa.EU868
# United States = LoRa.US915
lora = LoRa(mode=LoRa.LORAWAN, region=LoRa.EU868)
# create an ABP authentication params
dev_addr = struct.unpack( ">l" , binascii.unhexlify( '00000005' ))[ 0 ]
nwk_swkey = ubinascii.unhexlify( '2B7E151628AED2A6ABF7158809CF4F3C' )
app_swkey = ubinascii.unhexlify( '2B7E151628AED2A6ABF7158809CF4F3C' )
# join a network using ABP (Activation By Personalisation)
lora.join(activation=LoRa.ABP, auth=(dev_addr, nwk_swkey, app_swkey))
# create a LoRa socket
s = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
# set the LoRaWAN data rate
s.setsockopt(socket.SOL_LORA, socket.SO_DR, 5 )
# make the socket non-blocking
s.setblocking( False )
# send some data
s.send(bytes([ 0x01 , 0x02 , 0x03 ]))
# get any data received...
data = s.recv( 64 )
print(data)
Please ensure that there is an antenna connected to your device before
sending/receiving LoRa messages as improper use (e.g. without an antenna), may
damage the device.
5.2.2.4 LoRa
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