pySX127x/tx_beacon.py at master · dmartauz/pySX127x · GitHub

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#!/usr/bin/env python

""" A simple beacon transmitter class to send a 1-byte message (0x0f) in regular time intervals. """

# Copyright 2015 Mayer Analytics Ltd.
#
# This file is part of pySX127x.
#
# pySX127x is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public
# License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# pySX127x is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You can be released from the requirements of the license by obtaining a commercial license. Such a license is
# mandatory as soon as you develop commercial activities involving pySX127x without disclosing the source code of your
# own applications, or shipping pySX127x with a closed source product.
#
# You should have received a copy of the GNU General Public License along with pySX127.  If not, see
# <http://www.gnu.org/licenses/>.


import sys
from time import sleep
from SX127x.LoRa import *
from SX127x.board_config import BOARD

BOARD.setup()

class LoRaBeacon(LoRa):

    tx_counter = 0

    def __init__(self, verbose=False):
        super(LoRaBeacon, self).__init__(verbose)
        self.set_mode(MODE.SLEEP)
        self.set_dio_mapping([1,0,0,0,0,0])

    def on_rx_done(self):
        print("\nRxDone")
        print(self.get_irq_flags())
        print(map(hex, self.read_payload(nocheck=True)))
        self.set_mode(MODE.SLEEP)
        self.reset_ptr_rx()
        self.set_mode(MODE.RXCONT)

    def on_tx_done(self):
        global args
        self.set_mode(MODE.STDBY)
        self.clear_irq_flags()
        sys.stdout.flush()
        self.tx_counter += 1
        sys.stdout.write("\rtx #%d" % self.tx_counter)

	sleep(1)
        self.write_payload([0x74])
        self.set_mode(MODE.TX)

    def on_cad_done(self):
        print("\non_CadDone")
        print(self.get_irq_flags())

    def on_rx_timeout(self):
        print("\non_RxTimeout")
        print(self.get_irq_flags())

    def on_valid_header(self):
        print("\non_ValidHeader")
        print(self.get_irq_flags())

    def on_payload_crc_error(self):
        print("\non_PayloadCrcError")
        print(self.get_irq_flags())

    def on_fhss_change_channel(self):
        print("\non_FhssChangeChannel")
        print(self.get_irq_flags())

    def start(self):
        global args
        sys.stdout.write("\rstart")
        self.tx_counter = 0
        self.write_payload([0x74])
        self.set_mode(MODE.TX)
        while True:
            sleep(1)

lora = LoRaBeacon(verbose=False)
lora.set_pa_config(pa_select=1)


print(lora)
assert(lora.get_agc_auto_on() == 1)

try: input("Press enter to start...")
except: pass

try:
    lora.start()
except KeyboardInterrupt:
    sys.stdout.flush()
    print("")
    sys.stderr.write("KeyboardInterrupt\n")
finally:
    sys.stdout.flush()
    print("")
    lora.set_mode(MODE.SLEEP)
    print(lora)
    BOARD.teardown()