forked from Telos4/LoRa-Workshop
43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
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from lora_transceiver import LoRaTransceiver
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from uPySensors.ssd1306_i2c import Display
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import uLoRaWAN
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from uLoRaWAN.MHDR import MHDR
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d = Display()
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# create transceiver for LoRaWAN frequency (channel 0 = 868.1 Mhz)
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lora = LoRaTransceiver(frequency=868.1E6, syncword=0x34, display=d)
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# change the spreading factor
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lora.setSpreadingFactor(9)
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# set address and keys for LoRaWAN
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devAddr = [0x26, 0x01, 0x16, 0x5C] # ir_test_device_01
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#devAddr = [0x26, 0x01, 0x18, 0x52] # ir_test_device_02
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#devAddr = [0x26, 0x01, 0x1E, 0x4F] # ir_test_device_03
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nwkSKey = [0x9D, 0x95, 0x0F, 0xAB, 0xCB, 0x63, 0xD3, 0x04, 0xBC, 0x09, 0xC4, 0x9E, 0xC5, 0xDF, 0x3C, 0x37]
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appSKey = [0xC9, 0x6C, 0x00, 0xD1, 0xB0, 0x1C, 0x2E, 0x42, 0x11, 0xBA, 0x32, 0x6F, 0x2F, 0xC2, 0x75, 0x6A]
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devAddr_hex = " ".join(list(map(lambda x: "{0:02x}".format(x), devAddr))).upper()
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nwkSKey_hex = " ".join(list(map(lambda x: "{0:02x}".format(x), nwkSKey))).upper()
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appSKey_hex = " ".join(list(map(lambda x: "{0:02x}".format(x), appSKey))).upper()
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print("devAddr: ", devAddr_hex)
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print("nwkSKey: ", nwkSKey_hex)
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print("appSKey: ", appSKey_hex)
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# lorawan object for conversion of data in LoRaWAN message format
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lorawan = uLoRaWAN.new(nwkSKey, appSKey)
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def send_lorawan(message, frame_cnt=0):
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lorawan.create(MHDR.UNCONF_DATA_UP, {'devaddr': devAddr, 'fcnt': frame_cnt, 'data': list(map(ord, message)) })
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payload = lorawan.to_raw()
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lora.send(payload)
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print("lorawan message sent")
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send_lorawan("Hello world!")
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