from machine import Pin, SPI
from sx127x import SX127x

# SPI bus
spi = SPI(1, baudrate=1000000, polarity=0, phase=0,
          sck=Pin(18), mosi=Pin(23), miso=Pin(19))

# LoRa module
lora = SX127x(spi, cs=Pin(14), reset=Pin(26), irq=Pin(33),
              freq=868E6,  # or 915E6 depending on region
              sf=7,  # spreading factor
              bw=125E3, # bandwidth
              cr=5)  # coding rate