RNode_Firmware/Libraries/Example.py

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# This is a short example program that
# demonstrates the bare minimum of using
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# RNode in a Python program.
#
# The example and the RNode.py library is
# written for Python 3, so be sure to run
# it with: python3 Example.py
# First we'll import the RNodeInterface class.
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from RNode import RNodeInterface
# We'll also define which serial port the
# RNode is attached to.
serialPort = "/dev/ttyUSB0"
# This function gets called every time a
# packet is received
def gotPacket(data, rnode):
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message = data.decode("utf-8")
print("Received a packet: "+message)
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print("RSSI: "+str(rnode.r_stat_rssi)+" dBm")
print("SNR: "+str(rnode.r_stat_snr)+" dB")
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# Create an RNode instance. This configures
# and powers up the radio.
rnode = RNodeInterface(
callback = gotPacket,
name = "My RNode",
port = serialPort,
frequency = 868000000,
bandwidth = 125000,
txpower = 2,
sf = 7,
cr = 5,
loglevel = RNodeInterface.LOG_DEBUG)
# Enter a loop waiting for user input.
try:
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print("Waiting for packets, hit enter to send a packet, Ctrl-C to exit")
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while True:
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input()
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message = "Hello World!"
data = message.encode("utf-8")
rnode.send(data)
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except KeyboardInterrupt as e:
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print("")
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exit()