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import meshtastic.serial_interface
import meshtastic.mesh_interface
from pubsub import pub
import json
import time
import os
import sys
import signal
def idToHex(nodeId):
return '!' + hex(nodeId)[2:]
def onDisconnection(interface):
#there's no need to close a connection once disconnected
print("Awknowledged disconnection")
def onConnection(interface):
print("Awknowledged connection")
#Actually fill in destinationId
interface.sendPosition(destinationId="", wantResponse=True, channelIndex=0)
print("Sent position request")
#Actually fill in destinationId
interface.sendTelemetry(destinationId="", wantResponse=True, channelIndex=2)
print("Sent telemtry request")
def onReceive(packet, interface):
if False:
json_packet = json.dumps(packet, indent=4, default=lambda s: " ".join(str(s).split()))
print(f"{json_packet}\n\n")
print("Received packet:")
print(f" From: {packet['from']} / {idToHex(packet['from'])}")
print(f" To: {packet['to']} / {idToHex(packet['to'])}")
if 'channel' in packet:
print(f" Channel: {packet['channel']}")
if 'rxSnr' in packet:
print(f" SNR: {packet['rxSnr']}")
if 'rxRssi' in packet:
print(f" RSSI: {packet['rxRssi']}")
if 'hopLimit' in packet:
print(f" Hop Limit: {packet['hopLimit']}")
if 'hopStart' in packet:
print(f" Hop Start: {packet['hopStart']}")
if 'priority' in packet:
print(f" Priority: {packet['priority']}")
if 'viaMqtt' in packet:
print(f" via MQTT: {packet['viaMqtt']}")
if 'decoded' in packet:
print(f" Port Number: {packet['decoded'].get('portnum', 'N/A')}")
if packet['decoded'].get('portnum') == 'NODEINFO_APP':
print(" Node Information:")
node_info = packet['decoded'].get('user', {})
print(f" ID: {node_info.get('id', 'N/A')}")
print(f" Long Name: {node_info.get('longName', 'N/A')}")
print(f" Short Name: {node_info.get('shortName', 'N/A')}")
print(f" MAC Address: {node_info.get('macaddr', 'N/A')}")
print(f" Hardware Model: {node_info.get('hwModel', 'N/A')}")
if 'role' in packet:
print(f" Role: {node_info.get('role', 'N/A')}")
if 'isLicensed' in packet:
print(f" Role: {node_info.get('isLicensed', 'N/A')}")
if 'hopsAway' in packet:
print(f" Hops Away: {packet['hopsAway']}")
elif packet['decoded'].get('portnum') == 'POSITION_APP':
print(" Position:")
position = packet['decoded']['position']
print(f" Latitude: {position.get('latitude', 'N/A')}")
print(f" Longitude: {position.get('longitude', 'N/A')}")
print(f" Altitude: {position.get('altitude', 'N/A')}")
if 'PDOP' in position:
print(f" PDOP: {position.get('PDOP', 'N/A')}")
if 'ground_track' in position:
print(f" Ground Track: {position.get('ground_track', 'N/A')}")
if 'sats_in_view:' in position:
print(f" Satellites in View: {position.get('sats_in_view:', 'N/A')}")
elif packet['decoded'].get('portnum') == 'TEXT_MESSAGE_APP':
print(" Text Message:")
print(f" Text: {packet['decoded']['text']}")
elif packet['decoded'].get('portnum') == 'TELEMETRY_APP':
print(" Telemetry:")
telemetry = packet['decoded'].get('telemetry', {})
print(f" Time: {telemetry.get('time', 'N/A')}")
print(" Device Metrics:")
device_metrics = telemetry.get('deviceMetrics', {})
if device_metrics:
print(f" Battery Level: {device_metrics.get('batteryLevel', 'N/A')}")
print(f" Voltage: {device_metrics.get('voltage', 'N/A')}")
print(f" Channel Utilization: {device_metrics.get('channelUtilization', 'N/A')}")
print(f" Air Utilization Tx: {device_metrics.get('airUtilTx', 'N/A')}")
print(f" Uptime Seconds: {device_metrics.get('uptimeSeconds', 'N/A')}")
power_metrics = telemetry.get('powerMetrics', {})
if power_metrics:
print(" Power Metrics:")
print(f" CH1 Voltage: {power_metrics.get('ch1_voltage', 'N/A')}")
print(f" CH1 Current: {power_metrics.get('ch1_current', 'N/A')}")
print(f" CH2 Voltage: {power_metrics.get('ch2_voltage', 'N/A')}")
print(f" CH2 Current: {power_metrics.get('ch2_current', 'N/A')}")
environment_metrics = telemetry.get('environmentMetrics', {})
if environment_metrics:
print(" Environment Metrics:")
print(f" Temperature: {environment_metrics.get('temperature', 'N/A')}")
print(f" Relative Humidity: {environment_metrics.get('relativeHumidity', 'N/A')}")
print(f" Barometric Pressure: {environment_metrics.get('barometricPressure', 'N/A')}")
elif packet['decoded'].get('portnum') == 'NEIGHBORINFO_APP':
# Neighbor Information
print(" Neighbor Information:")
message = mesh_pb2.NeighborInfo()
payload_bytes = packet['decoded'].get('payload', b'')
message.ParseFromString(payload_bytes)
print(f" Node ID: {message.node_id} / {idToHex(message.node_id)}")
print(f" Last Sent By ID: {message.last_sent_by_id}")
print(f" Node Broadcast Interval (secs): {message.node_broadcast_interval_secs}")
print(" Neighbors:")
for neighbor in message.neighbors:
print(f" Neighbor ID: {neighbor.node_id} / {idToHex(neighbor.node_id)}")
print(f" SNR: {neighbor.snr}")
elif packet['decoded'].get('portnum') == 'RANGE_TEST_APP':
print(" Range Test Information:")
payload = packet['decoded'].get('payload', b'')
print(f" Payload: {payload.decode()}")
elif packet['decoded'].get('portnum') == 'STORE_FORWARD_APP':
print(" Store Forward Information:")
message = storeforward_pb2.StoreAndForward()
payload_bytes = packet['decoded'].get('payload', b'')
message.ParseFromString(payload_bytes)
if message.HasField('stats'):
print(f" Statistics: {message.stats}")
if message.HasField('history'):
print(f" History: {message.history}")
if message.HasField('heartbeat'):
print(f" Heartbeat: {message.heartbeat}")
elif packet['decoded'].get('portnum') == 'ADMIN_APP':
print(" Administrative Information:")
payload = packet['decoded'].get('payload', b'')
print(f" Payload: {payload}")
admin_info = packet['decoded'].get('admin', {})
if 'getChannelResponse' in admin_info:
response = admin_info['getChannelResponse']
print(" Get Channel Response:")
print(f" Index: {response.get('index', 'N/A')}")
print(" Settings:")
settings = response.get('settings', {})
for key, value in settings.items():
print(f" {key}: {value}")
elif packet['decoded'].get('portnum') == 'PAXCOUNTER_APP':
print(" Paxcounter Information:")
message = paxcount_pb2.Paxcount()
payload_bytes = packet['decoded'].get('payload', b'')
message.ParseFromString(payload_bytes)
print(f" Wifi: {message.wifi}")
print(f" BLE: {message.ble}")
print(f" Uptime: {message.uptime}")
else:
print(f" Decoded packet does not contain data we are looking for: {packet['decoded'].get('portnum', 'N/A')}")
else:
print(" No 'decoded' key found in the packet. Our node doesn't have the encryption key!")
print()
# You need to close any active connections if you exit
# If you don't, the interface will continue to be active
# and any stored messages will stay stored on the device
# and will be sent on the stale connection
def signal_handler(sig, frame):
print("closing")
interface.close()
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
# The python library will authmatically process any messages stored, so there
# is no need to manually scan for messages on connection
pub.subscribe(onReceive, 'meshtastic.receive')
pub.subscribe(onDisconnection, 'meshtastic.connection.lost')
pub.subscribe(onConnection, 'meshtastic.connection.established')
interface = meshtastic.serial_interface.SerialInterface()
local_node_id = interface.getNode('^local')
file_path = 'received_data.json'
while True:
time.sleep(1)
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