def on_message(client, userdata, msg):
# Convert the JSON payload to a Python dictionary.
# The payload is in binary format so we need to decode as UTF-8.
payload2 = json.loads(msg.payload.decode("utf-8"))
print("Received message, topic: " + msg.topic + ", payload:\n" +
json.dumps(payload2, indent=4, separators=(',', ': ')))
# If there is a desired state in this message, then we send to the LoRa device.
if payload2.get("state") is not None and payload2["state"].get("desired") is not None:
# Get the desired state and convert to JSON.
desired_state = payload2["state"]["desired"]
msg = json.dumps(desired_state)
# Send to LoRa device.
lora_address = convert_mqtt_topic_to_lora_address(msg.topic)
status = lora_interface.sendLoRaMessage(lora_address, msg) # TODO: Check status.
def on_message(client, userdata, msg):
# Convert the JSON payload to a Python dictionary.
# The payload is in binary format so we need to decode as UTF-8.
payload2 = json.loads(msg.payload.decode("utf-8"))
print("Received message, topic: " + msg.topic + ", payload:\n" +
json.dumps(payload2, indent=4, separators=(',', ': ')))
# If there is a desired state in this message, then we send to the LoRa device.
if payload2.get("state") is not None and payload2["state"].get(
"desired") is not None:
# Get the desired state and convert to JSON.
desired_state = payload2["state"]["desired"]
msg = json.dumps(desired_state)
# Send to LoRa device.
lora_address = convert_mqtt_topic_to_lora_address(msg.topic)
status = lora_interface.sendLoRaMessage(lora_address,
msg) # TODO: Check status.
snr = lora_interface.getLoRaSNRValue()
rssi = lora_interface.getLoRaRSSIValue()
rssi_packet = lora_interface.getLoRaRSSIpacketValue()
timestamp = datetime.datetime.now().isoformat()
msg = str(device_address) + "|" + \
str(gateway_address) + "|" + \
str(status) + "|" + \
str(setup_done) + "|" + \
str(send_count) + "|" + \
str(receive_count) + "|" + \
str(snr) + "|" + \
str(rssi) + "|" + \
str(rssi_packet) + "|" + \
str(timestamp)
print("Calling sendLoRaMessage to send device state to LoRa gateway " + str(gateway_address) + "...\n" + msg)
status = lora_interface.sendLoRaMessage(gateway_address, msg)
print("Status: " + str(status))
# Wait 10 seconds before sending the next message.
time.sleep(loop_delay)
except KeyboardInterrupt:
# Stop the program when we press Ctrl-C.
break
except Exception as e:
# For all other errors, we wait a while and resume.
print("Exception: " + str(e))
time.sleep(10)
continue
import lora_interface
print("Calling setupLoRa...")
status = lora_interface.setupLoRa()
print(status)
print("Calling sendLoRaMessage...")
status = lora_interface.sendLoRaMessage(1, "test message")
print(status)
print("Calling receiveLoRaMessage...")
msg = lora_interface.receiveLoRaMessage()
print(msg)
print("Calling getLoRaStatus...")
status = lora_interface.getLoRaStatus()
print(status)
