# RN2483 LoRaWAN
from microbit import *

def RN2483_Reset(): # Reset RN2483
    uart.init(57600,tx=pin1,rx=pin2 )
    pin0.write_digital(1)
    pin0.write_digital(0)
    pin0.write_digital(1)
    RN2483_CheckResponse()
    
def RN2483_SendCommand(command):
    uart.write(command)
    RN2483_CheckResponse()
    
def RN2483_CheckResponse():
    
    for i in range(100):
        sleep(100)
        if uart.any():
            break
    response_string = uart.readline()    
    
def RN2483_SendData(data):
    uart.write("mac tx uncnf 1 ")
    for char in data:
        nibble = char >> 4
        if nibble > 9:
            nibble = nibble + 0x37
        else:
            nibble = nibble + 0x30
        uart.write(chr(nibble))
        nibble = char & 0x0f
        if nibble > 9:
            nibble = nibble + 0x37
        else:
            nibble = nibble + 0x30
        uart.write(chr(nibble))
    uart.write("\r\n")
    RN2483_CheckResponse()
    RN2483_CheckResponse()

display.show(Image.NO)

RN2483_Reset()
#RN2483_SendCommand("sys factoryRESET\r\n")
RN2483_SendCommand("mac set devaddr 02011E16\r\n")
RN2483_SendCommand("mac set appskey 2B7E151628AED2A6ABF7158809CF4F3C\r\n")
RN2483_SendCommand("mac set nwkskey 2B7E151628AED2A6ABF7158809CF4F3C\r\n")
RN2483_SendCommand("mac set adr off\r\n")
RN2483_SendCommand("mac set rx2 3 869525000\r\n")
RN2483_SendCommand("mac join abp\r\n")

display.show(Image.YES)

while True:
    RN2483_SendData(b"BBC Micro:Bit Data")
    sleep(60000)