L04 Lorawan ABP

[Alessandro Cortese]

Good afternoon everyone,
i am still having problems with ABP authentication with L04 module.
i Send a packet every 10 seconds with dr=5,
Everything works as expected when i use 1.20.3.b4 Development stack, but with other versions such as pybytes, legacy, this code not working.

Any ideas?
below my code!

many thanks,

Alessandro

from network import LoRa
import socket
import ubinascii
import struct
import time
import machine

lora = LoRa(mode=LoRa.LORAWAN, region=LoRa.EU868)

dev_addr = struct.unpack(">l", ubinascii.unhexlify("260B6FA1"))[0]
nwk_swkey = ubinascii.unhexlify("4E776147EDF91C14DD007E76D64F0D0E")
app_swkey = ubinascii.unhexlify("655CA99B586876E156919AD7E09B87D7")

for i in range(3, 16):
lora.remove_channel(i)

lora.add_channel(0, frequency=868100000, dr_min=0, dr_max=5)
lora.add_channel(1, frequency=868100000, dr_min=0, dr_max=5)
lora.add_channel(2, frequency=868100000, dr_min=0, dr_max=5)

lora.join(activation=LoRa.ABP, auth=(dev_addr, nwk_swkey, app_swkey))

s = socket.socket(socket.AF_LORA, socket.SOCK_RAW)

s.setsockopt(socket.SOL_LORA, socket.SO_DR, 5) # set data rate
s.setsockopt(socket.SOL_LORA, socket.SO_CONFIRMED, True)

def lora_cb(lora):
events = lora.events()
print(events)
if events & LoRa.RX_PACKET_EVENT:
print('Lora packet received')
return
if events & LoRa.TX_PACKET_EVENT:
print('Lora packet sent')
print(lora.stats())
return
if events & LoRa.TX_FAILED_EVENT:
print('Lora packet sent failed')
return

lora.callback(trigger=(LoRa.RX_PACKET_EVENT|LoRa.TX_PACKET_EVENT|LoRa.TX_FAILED_EVENT), handler=lora_cb)

s.setblocking(False)

counter = 0

while True:
counter += 1
if counter == 50:
print('Sending')
s.send("hello")
counter = 0
time.sleep_ms(100)