Added serial connection support

main.py

@@ -6,6 +6,7 @@ import logging
 import yaml
 import re
 import meshtastic.tcp_interface
+import meshtastic.serial_interface
 from nio import AsyncClient, AsyncClientConfig, MatrixRoom, RoomMessageText, RoomMessage
 from pubsub import pub
 from meshtastic import mesh_pb2
@@ -28,11 +29,20 @@ elif relay_config["logging"]["level"] == "warn":
 elif relay_config["logging"]["level"] == "error":
     logger.setLevel(logging.ERROR)
 
-target_host = relay_config["meshtastic"]["host"]
 
 # Connect to the Meshtastic device
 logger.info(f"Starting Meshtastic <==> Matrix Relay...")
 
+# Add a new configuration option to select between serial and network connections
+connection_type = relay_config["meshtastic"]["connection_type"]
+
+if connection_type == "serial":
+    serial_port = relay_config["meshtastic"]["serial_port"]
+    logger.info(f"Connecting to radio using serial port {serial_port} ...")
+    meshtastic_interface = meshtastic.serial_interface.SerialInterface(serial_port)
+    logger.info(f"Connected to radio using serial port {serial_port}.")
+else:
+    target_host = relay_config["meshtastic"]["host"]
     logger.info(f"Connecting to radio at {target_host} ...")
     meshtastic_interface = meshtastic.tcp_interface.TCPInterface(hostname=target_host)
     logger.info(f"Connected to radio at {target_host}.")

sample_config.yaml

@@ -1,12 +1,14 @@
 matrix:
-  homeserver: "https://scamdemic.wtf"
-  access_token: "syt_bWVzaHRhc3RpY2JvdA_TJwsgMiKQmBdpPVIVlaQ_0S5MPm"
-  bot_user_id: "@meshtasticbot:scamdemic.wtf"
-  room_id: "!phZxXpkkANBjLFBWUB:scamdemic.wtf"
+  homeserver: "https://example.matrix.org"
+  access_token: "reaalllllyloooooongsecretttttcodeeeeeeforrrrbot"
+  bot_user_id: "@botuser:example.matrix.org"
+  room_id: "!someroomid:example.matrix.org"
 
 meshtastic:
-  host: "meshtastic.local"
-  broadcast_enabled: false
+  connection_type: serial  # Choose either "network" or "serial"
+  serial_port: /dev/ttyUSB0  # Only used when connection is "serial"
+  host: "meshtastic.local" # Only used when connection is "network"
+  broadcast_enabled: true
   channel: 0
 
 logging: