1  # Example to display raw packets including header
 2  # Author: Jerry Needell
 3  #
 4  import board
 5  import busio
 6  import digitalio
 7  import adafruit_rfm9x
 8  
 9  # Define radio parameters.
10  RADIO_FREQ_MHZ = 915.0  # Frequency of the radio in Mhz. Must match your
11  # module! Can be a value like 915.0, 433.0, etc.
12  
13  # Define pins connected to the chip.
14  CS = digitalio.DigitalInOut(board.CE1)
15  RESET = digitalio.DigitalInOut(board.D25)
16  
17  # Initialize SPI bus.
18  spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
19  
20  # Initialze RFM radio
21  rfm9x = adafruit_rfm9x.RFM9x(spi, CS, RESET, RADIO_FREQ_MHZ)
22  
23  # Wait to receive packets.
24  print("Waiting for packets...")
25  # initialize flag and timer
26  while True:
27      # Look for a new packet: only accept if addresses to my_node
28      packet = rfm9x.receive(with_header=True)
29      # If no packet was received during the timeout then None is returned.
30      if packet is not None:
31          # Received a packet!
32          # Print out the raw bytes of the packet:
33          print("Received (raw header):", [hex(x) for x in packet[0:4]])
34          print("Received (raw payload): {0}".format(packet[4:]))
35          print("RSSI: {0}".format(rfm9x.last_rssi))
36          # send reading after any packet received