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# receive.py => A riff off of Tony DiCola's SimpleTest.py. See send.py
import board
import busio
import digitalio
import adafruit_rfm69
# Define radio parameters.
RADIO_FREQ_MHZ = 915.0 # Frequency of the radio in Mhz. Must match your
# module! Can be a value like 915.0, 433.0, etc.
# Define pins connected to the chip.
CS = digitalio.DigitalInOut(board.RFM69_CS)
RESET = digitalio.DigitalInOut(board.RFM69_RST)
# Initialize SPI bus.
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
# Initialze RFM radio
rfm69 = adafruit_rfm69.RFM69(spi, CS, RESET, RADIO_FREQ_MHZ)
#
# # Wait to receive packets. Note that this library can't receive data at a fast
# # rate, in fact it can only receive and process one 60 byte packet at a time.
# # This means you should only use this for low bandwidth scenarios, like sending
# # and receiving a single message at a time.
print('Waiting for packets...')
while True:
packet = rfm69.receive()
# Optionally change the receive timeout from its default of 0.5 seconds:
#packet = rfm69.receive(timeout_s=5.0)
# If no packet was received during the timeout then None is returned.
if packet is None:
print('Received nothing! Listening again...')
else:
# Received a packet!
# Print out the raw bytes of the packet:
print('Received (raw bytes): {0}'.format(packet))
# And decode to ASCII text and print it too. Note that you always
# receive raw bytes and need to convert to a text format like ASCII
# if you intend to do string processing on your data. Make sure the
# sending side is sending ASCII data before you try to decode!
packet_text = str(packet, 'ascii')
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