""" ABP Node example compatible with the LoPy Nano Gateway """

from network import LoRa
import socket
import binascii
import struct
import time
from machine import Pin

#p_Relay1 = Pin(Pin.module.P5, mode=Pin.OUT)
"""
p_Relay1 = Pin('P5', mode=Pin.OUT)
p_Relay2 = Pin('P6', mode=Pin.OUT)
p_Relay3 = Pin('P7', mode=Pin.OUT)
"""
p_Relay4 = Pin('P8', mode=Pin.OUT)

comptador = 0
def pin_handler(arg):
	global comptador
	print("%d) got an interrupt in pin %s" % (comptador,arg.id()))
	s.send(b'PKT #' + bytes([comptador]))
	time.sleep(4)
	comptador = comptador + 1

	rx = s.recv(256)
	if rx:
		print(rx)

		if rx == b'u':
			#p_Relay1.value(1)
			print("Relay 1 ON")
		if rx == b'U':
			#p_Relay1.value(0)
			print("Relay 1 OFF")
		if rx == b'd':
			#p_Relay2.value(1)
			print("Relay 2 ON")
		if rx == b'D':
			#p_Relay2.value(0)
			print("Relay 2 OFF")
		if rx == b't':
			#p_Relay3.value(1)
			print("Relay 3 ON")
		if rx == b'T':
			#p_Relay3.value(0)
			print("Relay 3 OFF")
		if rx == b'q':
			p_Relay4.value(1)
			print("Relay 4 ON")
		if rx == b'Q':
			p_Relay4.value(0)
			print("Relay 4 OFF")

	time.sleep(6)


p_in = Pin('P13', mode=Pin.IN, pull=Pin.PULL_UP)
p_in.callback(Pin.IRQ_FALLING , pin_handler)


# create an OTA authentication params
# dev_eui = binascii.unhexlify('70B3D5499A016D2F')
# app_eui = binascii.unhexlify('70B3D57ED0009597')
# app_key = binascii.unhexlify('3748F979ACC327EE740A3C6C7BD1B450')


# Initialize LoRa in LORAWAN mode.
lora = LoRa(mode=LoRa.LORAWAN)

# create an ABP authentication params
dev_addr = struct.unpack(">l", binascii.unhexlify('26 01 14 92'.replace(' ','')))[0] # these settings can be found from TTN
nwk_swkey = binascii.unhexlify('C3 A9 7C 21 69 07 15 1E DC E2 0B B2 68 CE 3B 37'.replace(' ','')) # these settings can be found from TTN
app_swkey = binascii.unhexlify('46 1D BD 77 DC F9 07 5F 8A 42 4C 5F 7E F8 B6 C2'.replace(' ','')) # these settings can be found from TTN

# join a network using ABP (Activation By Personalization)
lora.join(activation=LoRa.ABP, auth=(dev_addr, nwk_swkey, app_swkey))

# 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=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)

# 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)

""" Your own code can be written below! """

for i in range (2):
#while True:
    s.send(b'PKT #' + bytes([i]))
    time.sleep(4)
    rx = s.recv(256)
    if rx:
        print(rx)
    time.sleep(6)