RFM69.exs

alias RFM69.{Configuration, Device}

Device.start_link("spidev0.0", 24, 23)

test_configuration = %Configuration{
  op_mode: 0x00,
  frf: Configuration.frequency_to_registers(916_600_000),
  bitrate: Configuration.bitrate_to_registers(16_384),
  data_modul: 0x08,
  pa_level: 0x5F,
  lna: 0x88,
  rx_bw: 0x40, # 250kHz with dcc freq shift 2, RxBwMant of 16 and RxBwExp of 0
  afc_bw: 0x80, # dcc freq shift of 4
  dio_mapping1: 0x80,
  dio_mapping2: 0x07,
  rssi_thresh: 0xE4,
  preamble: 0x0018,
  sync_config: 0x98,
  sync_value: 0xFF00FF0001010101,
  packet_config1: 0x00,
  payload_length: 0x00,
  fifo_thresh: 0x94,
  packet_config2: 0x00
}

Device.write_configuration(test_configuration)
Device.write_single(0x6F, 0x30)

RFM69.set_base_frequency(916.500)