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from network import LoRa
import socket
import binascii
import struct
import time
import config
# initialize 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('2601147D'))[0]
nwk_swkey = binascii.unhexlify('3C74F4F40CAEA021303BC24284FCF3AF')
app_swkey = binascii.unhexlify('0FFA7072CC6FF69A102A0F39BEB0880F')
# remove all the non-default channels
for i in range(3, 16):
lora.remove_channel(i)
# set the 3 default channels to the same frequency
lora.add_channel(0, frequency=config.LORA_FREQUENCY, dr_min=0, dr_max=5)
lora.add_channel(1, frequency=config.LORA_FREQUENCY, dr_min=0, dr_max=5)
lora.add_channel(2, frequency=config.LORA_FREQUENCY, dr_min=0, dr_max=5)
# join a network using ABP (Activation By Personalization)
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, config.LORA_NODE_DR)
# make the socket non-blocking
s.setblocking(False)
for i in range (200):
pkt = b'PKT #' + bytes([i])
print('Sending:', pkt)
s.send(pkt)
time.sleep(4)
rx, port = s.recvfrom(256)
if rx:
print('Received: {}, on port: {}'.format(rx, port))
time.sleep(6)
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