diff --git a/MeshtasticClient.exe b/MeshtasticClient.exe
index 29fb0ab..9ca3488 100644
Binary files a/MeshtasticClient.exe and b/MeshtasticClient.exe differ
diff --git a/meshtastic.png b/meshtastic.png
new file mode 100644
index 0000000..668347f
Binary files /dev/null and b/meshtastic.png differ
diff --git a/meshtastic_client.py b/meshtastic_client.py
index 93a6bd3..f966759 100644
--- a/meshtastic_client.py
+++ b/meshtastic_client.py
@@ -27,13 +27,13 @@ except Exception:
     BLEInterface = None
 
 try:
-    from meshtastic.protobuf import mesh_pb2, portnums_pb2
+    from meshtastic.protobuf import mesh_pb2, portnums_pb2, telemetry_pb2
     import google.protobuf.json_format as _json_format
 except Exception:
     mesh_pb2 = None
     portnums_pb2 = None
+    telemetry_pb2 = None
     _json_format = None
-
 try:
     from serial.tools import list_ports
 except Exception:
@@ -119,6 +119,10 @@ class MeshtasticGUI:
         m_view = tk.Menu(self.menubar, tearoff=False)
         m_view.add_command(label="Light theme", command=lambda: self.apply_theme("light"))
         m_view.add_command(label="Dark theme", command=lambda: self.apply_theme("dark"))
+        m_view.add_separator()
+        m_view.add_command(label="Neighbor table", command=self.show_neighbors_window)
+        m_view.add_command(label="Radio config (view)", command=self.show_radio_config_window)
+        m_view.add_command(label="Channel editor", command=self.show_channel_editor_window)
         self.menubar.add_cascade(label="View", menu=m_view)
 
         m_links = tk.Menu(self.menubar, tearoff=False)
@@ -182,13 +186,13 @@ class MeshtasticGUI:
 
         self.cols_all = (
             "shortname", "longname", "since", "hops",
-            "distkm", "speed", "alt",
+            "distkm", "speed", "alt", "battery", "voltage",
             "lastheard", "hwmodel", "role",
             "macaddr", "publickey", "isunmessagable", "id"
         )
         self.cols_visible = (
             "shortname", "longname", "since", "hops",
-            "distkm", "speed", "alt", "hwmodel", "role"
+            "distkm", "speed", "alt", "battery", "voltage", "hwmodel", "role"
         )
         self.tv_nodes = ttk.Treeview(
             self.nodes_frame,
@@ -206,6 +210,8 @@ class MeshtasticGUI:
             "distkm": "Dist (km)",
             "speed": "Speed",
             "alt": "Alt (m)",
+            "battery": "Batt %",
+            "voltage": "Volt",
             "hwmodel": "HW",
             "role": "Role",
             "lastheard": "",
@@ -216,7 +222,6 @@ class MeshtasticGUI:
         }
         for key, text in headings.items():
             self.tv_nodes.heading(key, text=text, command=lambda c=key: self.sort_by_column(c, False))
-
         widths = {
             "shortname": 90,
             "longname": 200,
@@ -225,12 +230,14 @@ class MeshtasticGUI:
             "distkm": 70,
             "speed": 70,
             "alt": 70,
+            "battery": 70,
+            "voltage": 80,
             "hwmodel": 90,
             "role": 110,
         }
         for key, w in widths.items():
             try:
-                self.tv_nodes.column(key, width=w, anchor="w", stretch=(key not in ("since", "hops", "distkm", "speed", "alt")))
+                self.tv_nodes.column(key, width=w, anchor="w", stretch=(key not in ("since", "hops", "distkm", "speed", "alt", "battery", "voltage")))
             except Exception:
                 pass
 
@@ -241,6 +248,7 @@ class MeshtasticGUI:
             except Exception:
                 pass
 
+        # scrollbar for node list
         yscroll_nodes = ttk.Scrollbar(self.nodes_frame, orient="vertical", command=self.tv_nodes.yview)
         self.tv_nodes.configure(yscrollcommand=yscroll_nodes.set)
         yscroll_nodes.grid(row=1, column=1, sticky="ns")
@@ -250,11 +258,12 @@ class MeshtasticGUI:
         self.node_menu.add_command(label="Node info", command=self._cm_show_node_details)
         self.node_menu.add_command(label="Map", command=self._cm_open_map)
         self.node_menu.add_command(label="Traceroute", command=self._cm_traceroute)
+        self.node_menu.add_command(label="Chat with node", command=self._cm_open_chat)
         self.node_menu.add_separator()
         self.node_menu.add_command(label="Delete node", command=self._cm_delete_node)
 
         self.tv_nodes.bind("<Button-3>", self._popup_node_menu)
-        self.tv_nodes.bind("<Double-1>", lambda e: self._toggle_send_target())
+        self.tv_nodes.bind("<Double-1>", lambda e: self._cm_open_chat())
 
         self.paned.add(self.msg_frame, weight=3)
         self.paned.add(self.nodes_frame, weight=4)
@@ -265,6 +274,8 @@ class MeshtasticGUI:
         self._last_seen_overrides: Dict[str, float] = {}
         self._last_sort_col: Optional[str] = "since"
         self._last_sort_reverse: bool = True
+        self._telemetry: Dict[str, Dict[str, Any]] = {}
+        self._per_node_chats: Dict[str, "NodeChatWindow"] = {}
 
         if pub is not None:
             try:
@@ -275,7 +286,7 @@ class MeshtasticGUI:
             except Exception as e:
                 print("pubsub subscribe failed:", e)
 
-        self.apply_theme("light")
+        self.apply_theme("dark")
         self._append("Ready. Connection -> Connect (TCP/USB/BLE)")
         self._update_title_with_host()
 
@@ -362,6 +373,24 @@ class MeshtasticGUI:
         decoded = packet.get("decoded", {}) if isinstance(packet, dict) else {}
         portnum = decoded.get("portnum")
         sender = packet.get("fromId") or packet.get("from") or packet.get("fromIdShort")
+        if portnum == "TELEMETRY_APP" and telemetry_pb2 is not None and sender:
+            try:
+                payload = decoded.get("payload")
+                if isinstance(payload, (bytes, bytearray)):
+                    tmsg = telemetry_pb2.Telemetry()
+                    tmsg.ParseFromString(payload)
+                    if tmsg.HasField("device_metrics"):
+                        dm = tmsg.device_metrics
+                        entry = self._telemetry.get(str(sender), {})
+                        if dm.battery_level is not None:
+                            entry["battery"] = dm.battery_level
+                        if dm.voltage is not None:
+                            entry["voltage"] = dm.voltage
+                        self._telemetry[str(sender)] = entry
+            except Exception:
+                # ignore telemetry parse errors, they are non-fatal
+                pass
+
         if sender:
             self._last_seen_overrides[str(sender)] = time.time()
 
@@ -392,6 +421,7 @@ class MeshtasticGUI:
 
         if portnum == "TEXT_MESSAGE_APP":
             self._append("[MSG] %s: %s (RSSI=%s)" % (label, text, rssi))
+            self._append_to_node_chat(str(sender), "%s" % (text,))
             if isinstance(text, str) and text.strip().lower() == "ping":
                 self._send_pong(sender, label)
 
@@ -403,6 +433,7 @@ class MeshtasticGUI:
         try:
             self.iface.sendText("pong", destinationId=dest_id, wantAck=False)
             self._append("[auto] pong -> %s" % label)
+            self._append_to_node_chat(str(dest_id), "[auto] pong")
         except Exception as e:
             self._append("[auto] pong failed: %s" % e)
 
@@ -556,10 +587,6 @@ class MeshtasticGUI:
         self._channel_map[label_pub] = {"mode": "broadcast", "channelIndex": 0}
         options.append(label_pub)
 
-        label_sel = "To selected node"
-        self._channel_map[label_sel] = {"mode": "selected", "channelIndex": 0}
-        options.append(label_sel)
-
         if hasattr(self, "cbo_channel"):
             self.cbo_channel["values"] = options
         if hasattr(self, "channel_var"):
@@ -582,7 +609,6 @@ class MeshtasticGUI:
 
         We keep:
           * "Public (broadcast)"    -> broadcast on channel 0
-          * "To selected node"      -> direct message to selected node on channel 0
         And then append additional channels (1..N) from the radio as:
           * "Ch <idx>: <name>"      -> broadcast on that channel.
         """
@@ -830,6 +856,12 @@ class MeshtasticGUI:
             speed_str = "%.1f" % speed if isinstance(speed, (int, float)) else "-"
             alt_str = "%.0f" % alt if isinstance(alt, (int, float)) else "-"
 
+            telem = self._telemetry.get(node_id, {}) if hasattr(self, "_telemetry") else {}
+            bat = telem.get("battery")
+            volt = telem.get("voltage")
+            bat_str = "%.0f" % bat if isinstance(bat, (int, float)) else "-"
+            volt_str = "%.2f" % volt if isinstance(volt, (int, float)) else "-"
+
             values = (
                 shortname,
                 longname,
@@ -838,6 +870,8 @@ class MeshtasticGUI:
                 dist_str,
                 speed_str,
                 alt_str,
+                bat_str,
+                volt_str,
                 "%.0f" % (lastheard_epoch or 0),
                 hwmodel,
                 role,
@@ -852,7 +886,6 @@ class MeshtasticGUI:
                     self.tv_nodes.insert("", "end", iid=node_id, values=values)
                 except Exception:
                     self.tv_nodes.insert("", "end", values=values)
-
         if self._last_sort_col:
             self.sort_by_column(self._last_sort_col, self._last_sort_reverse)
 
@@ -862,7 +895,7 @@ class MeshtasticGUI:
         self._last_sort_col = col
         self._last_sort_reverse = reverse
         col_to_sort = "lastheard" if col == "since" else col
-        numeric = {"lastheard", "distkm", "hops", "speed", "alt"}
+        numeric = {"lastheard", "distkm", "hops", "speed", "alt", "battery", "voltage"}
         rows = []
         for iid in self.tv_nodes.get_children(""):
             val = self.tv_nodes.set(iid, col_to_sort)
@@ -1189,14 +1222,9 @@ class MeshtasticGUI:
         txt.insert("1.0", text.strip() or "No traceroute data.")
         txt.configure(state="disabled")
     def _toggle_send_target(self):
-        nid = self._get_selected_node_id()
-        if nid:
-            # Switch selector to "To selected node" when a node is double-clicked
-            self._set_channel_choice("To selected node")
-            self._append("[target] will send to %s" % self._node_label(nid))
-        else:
-            # No selection -> fall back to public broadcast
-            self._set_channel_choice("Public (broadcast)")
+        # Legacy helper – kept for compatibility, but no longer used.
+        # Double-clicking a node now opens the per-node chat window directly.
+        return
     def _popup_node_menu(self, event):
         iid = self.tv_nodes.identify_row(event.y)
         if iid:
@@ -1299,9 +1327,312 @@ class MeshtasticGUI:
             txt.insert("1.0", "\n".join(lines))
         else:
             txt.insert("1.0", json.dumps(node, indent=2, default=str))
+
         txt.configure(state="disabled")
 
+    def show_neighbors_window(self):
+        if not self.iface or not getattr(self.iface, "nodes", None):
+            messagebox.showinfo("Neighbors", "No interface or nodes available.")
+            return
+        win = tk.Toplevel(self.root)
+        win.title("Neighbor table")
+        self._style_toplevel(win)
+        frm = ttk.Frame(win, padding=8)
+        frm.pack(expand=True, fill="both")
+        tree = ttk.Treeview(frm, columns=("from", "to", "snr", "lastheard"), show="headings")
+        for col, txt in (("from", "From node"), ("to", "To node"), ("snr", "SNR"), ("lastheard", "Last heard")):
+            tree.heading(col, text=txt)
+            tree.column(col, width=160 if col in ("from", "to") else 90, anchor="w")
+        tree.pack(side="left", expand=True, fill="both")
+        yscroll = ttk.Scrollbar(frm, orient="vertical", command=tree.yview)
+        tree.configure(yscrollcommand=yscroll.set)
+        yscroll.pack(side="right", fill="y")
 
+        try:
+            nodes_snapshot = dict(self.iface.nodes or {})
+        except Exception:
+            nodes_snapshot = {}
+        rows = 0
+        for node_id, node in nodes_snapshot.items():
+            from_label = self._node_label(node_id)
+            neighbors = (node or {}).get("neighbors") or []
+            if isinstance(neighbors, dict):
+                neighbors = neighbors.values()
+            for n in neighbors:
+                try:
+                    to_id = (n or {}).get("nodeId") or (n or {}).get("id") or ""
+                    to_label = self._node_label(str(to_id)) if to_id else str(to_id)
+                    snr = (n or {}).get("snr") or (n or {}).get("snrDb")
+                    last = (n or {}).get("lastHeard")
+                    try:
+                        last_epoch = float(last) if last is not None else None
+                    except Exception:
+                        last_epoch = None
+                    last_str = _fmt_ago(last_epoch)
+                except Exception:
+                    continue
+                tree.insert("", "end", values=(from_label, to_label, snr if snr is not None else "-", last_str))
+                rows += 1
+
+        if rows == 0:
+            messagebox.showinfo("Neighbors", "No neighbor information found on nodes.")
+
+    def show_radio_config_window(self):
+        if not self.iface or not getattr(self.iface, "localNode", None):
+            messagebox.showinfo("Radio config", "Connect to a device first.")
+            return
+        ln = self.iface.localNode
+        try:
+            if getattr(ln, "localConfig", None) is None and hasattr(ln, "waitForConfig"):
+                ln.waitForConfig("localConfig")
+        except Exception:
+            pass
+        cfg = getattr(ln, "localConfig", None)
+        mod = getattr(ln, "moduleConfig", None)
+        if cfg is None and mod is None:
+            messagebox.showinfo("Radio config", "No config available yet from device.")
+            return
+        win = tk.Toplevel(self.root)
+        win.title("Radio + module config (read‑only)")
+        self._style_toplevel(win)
+        frm = ttk.Frame(win, padding=8)
+        frm.pack(expand=True, fill="both")
+        txt = tk.Text(frm, wrap="none")
+        txt.pack(side="left", expand=True, fill="both")
+        yscroll = ttk.Scrollbar(frm, orient="vertical", command=txt.yview)
+        txt.configure(yscrollcommand=yscroll.set)
+        yscroll.pack(side="right", fill="y")
+        is_dark = self.current_theme == "dark"
+        txt.configure(
+            bg=("#2d2d2d" if is_dark else "#ffffff"),
+            fg=("#ffffff" if is_dark else "#000000"),
+            insertbackground=("#ffffff" if is_dark else "#000000"),
+        )
+        lines = []
+        if cfg is not None:
+            lines.append("localConfig:")
+            try:
+                lines.append(str(cfg))
+            except Exception:
+                lines.append(repr(cfg))
+        if mod is not None:
+            lines.append("\nmoduleConfig:")
+            try:
+                lines.append(str(mod))
+            except Exception:
+                lines.append(repr(mod))
+        txt.insert("1.0", "\n".join(lines))
+        txt.configure(state="disabled")
+
+    def show_channel_editor_window(self):
+        if not self.iface or not getattr(self.iface, "localNode", None):
+            messagebox.showinfo("Channels", "Connect to a device first.")
+            return
+        ln = self.iface.localNode
+        try:
+            if getattr(ln, "channels", None) in (None, {}) and hasattr(ln, "waitForConfig"):
+                ln.waitForConfig("channels")
+        except Exception:
+            pass
+        chans = getattr(ln, "channels", None)
+        if not chans:
+            messagebox.showinfo("Channels", "No channels available from device.")
+            return
+
+        win = tk.Toplevel(self.root)
+        win.title("Channel editor")
+        self._style_toplevel(win)
+        frm = ttk.Frame(win, padding=8)
+        frm.grid(row=0, column=0, sticky="nsew")
+        win.rowconfigure(0, weight=1)
+        win.columnconfigure(0, weight=1)
+
+        listbox = tk.Listbox(frm, height=10)
+        listbox.grid(row=0, column=0, columnspan=2, sticky="nsew")
+        frm.rowconfigure(0, weight=1)
+        frm.columnconfigure(0, weight=1)
+
+        for idx, ch in enumerate(chans):
+            if ch is None:
+                label = f"Ch {idx} (empty)"
+            else:
+                try:
+                    name = (getattr(ch, "settings", None).name or "").strip()
+                except Exception:
+                    try:
+                        name = (ch.settings.name or "").strip()
+                    except Exception:
+                        name = ""
+                label = f"{idx}: {name or '(no name)'}"
+            listbox.insert("end", label)
+
+        ttk.Label(frm, text="Channel name:").grid(row=1, column=0, sticky="w", pady=(6, 2))
+        name_var = tk.StringVar()
+        ent_name = ttk.Entry(frm, textvariable=name_var, width=40)
+        ent_name.grid(row=2, column=0, columnspan=2, sticky="ew")
+
+        def on_select(evt=None):
+            sel = listbox.curselection()
+            if not sel:
+                return
+            i = sel[0]
+            ch = chans[i]
+            if ch is None:
+                name_var.set("")
+                return
+            try:
+                nm = (getattr(ch, "settings", None).name or "").strip()
+            except Exception:
+                try:
+                    nm = (ch.settings.name or "").strip()
+                except Exception:
+                    nm = ""
+            name_var.set(nm)
+
+        listbox.bind("<<ListboxSelect>>", on_select)
+
+        def save_name():
+            sel = listbox.curselection()
+            if not sel:
+                messagebox.showinfo("Channel editor", "Select a channel first.")
+                return
+            i = sel[0]
+            ch = chans[i]
+            if ch is None:
+                messagebox.showerror("Channel editor", "Selected channel object is empty, cannot rename.")
+                return
+            new_name = name_var.get().strip()
+            try:
+                if hasattr(ch, "settings"):
+                    ch.settings.name = new_name
+                elif hasattr(ch, "name"):
+                    ch.name = new_name
+                ln.writeChannel(i)
+                self._append(f"[admin] Renamed channel {i} to '{new_name}'")
+                self._update_channels_from_iface()
+                listbox.delete(i)
+                label = f"{i}: {new_name or '(no name)'}"
+                listbox.insert(i, label)
+            except Exception as e:
+                messagebox.showerror("Channel editor", f"Failed to write channel: {e}")
+
+        btn_save = ttk.Button(frm, text="Save name to device", command=save_name)
+        btn_save.grid(row=3, column=0, sticky="w", pady=(6, 0))
+
+    def _cm_open_chat(self):
+        nid = self._get_selected_node_id()
+        if not nid:
+            messagebox.showinfo("Chat", "Select a node first.")
+            return
+        self._open_node_chat(nid)
+
+    def _open_node_chat(self, nid: str):
+        key = str(nid)
+        if key in self._per_node_chats:
+            win = self._per_node_chats[key]
+            try:
+                win.top.deiconify()
+                win.top.lift()
+            except Exception:
+                pass
+            return
+        label = self._node_label(nid)
+        chat = NodeChatWindow(self, key, label)
+        self._per_node_chats[key] = chat
+
+    def _append_to_node_chat(self, node_id: str, line: str):
+        key = str(node_id)
+        if not key:
+            return
+        win = self._per_node_chats.get(key)
+        if not win:
+            return
+        win.append(line)
+
+    def _send_text_to_node(self, dest_id: str, msg: str) -> bool:
+        if not self.iface:
+            messagebox.showwarning("Send", "Connect first.")
+            return False
+        msg = (msg or "").strip()
+        if not msg:
+            return False
+        try:
+            choice = self.channel_var.get() if hasattr(self, "channel_var") else ""
+            info = (self._channel_map.get(choice) if hasattr(self, "_channel_map") else None) or {
+                "mode": "broadcast",
+                "channelIndex": 0,
+            }
+            ch_index = int(info.get("channelIndex", 0) or 0)
+        except Exception:
+            ch_index = 0
+        try:
+            self.iface.sendText(msg, destinationId=dest_id, wantAck=False, channelIndex=ch_index)
+            self._append("[ME -> %s] %s" % (self._node_label(dest_id), msg))
+            self._append_to_node_chat(dest_id, "[ME] " + msg)
+            return True
+        except Exception as e:
+            messagebox.showerror("Send failed", str(e))
+            return False
+
+
+
+class NodeChatWindow:
+    def __init__(self, app: "MeshtasticGUI", node_id: str, label: str):
+        self.app = app
+        self.node_id = node_id
+        self.label = label
+        self.top = tk.Toplevel(app.root)
+        self.top.title(f"Chat: {label}")
+        app._style_toplevel(self.top)
+        self.top.protocol("WM_DELETE_WINDOW", self._on_close)
+
+        frm = ttk.Frame(self.top, padding=8)
+        frm.pack(expand=True, fill="both")
+        frm.rowconfigure(0, weight=1)
+        frm.columnconfigure(0, weight=1)
+
+        self.txt = tk.Text(frm, wrap="word")
+        self.txt.grid(row=0, column=0, columnspan=2, sticky="nsew")
+        yscroll = ttk.Scrollbar(frm, orient="vertical", command=self.txt.yview)
+        self.txt.configure(yscrollcommand=yscroll.set)
+        yscroll.grid(row=0, column=2, sticky="ns")
+
+        is_dark = app.current_theme == "dark"
+        self.txt.configure(
+            bg=("#2d2d2d" if is_dark else "#ffffff"),
+            fg=("#ffffff" if is_dark else "#000000"),
+            insertbackground=("#ffffff" if is_dark else "#000000"),
+        )
+
+        self.entry = ttk.Entry(frm)
+        self.entry.grid(row=1, column=0, sticky="nsew", pady=(6, 0))
+        self.entry.bind("<Return>", self._on_send)
+        btn = ttk.Button(frm, text="Send", command=self._on_send)
+        btn.grid(row=1, column=1, sticky="e", padx=(4, 0), pady=(6, 0))
+
+    def append(self, line: str):
+        try:
+            self.txt.insert("end", line + "\n")
+            self.txt.see("end")
+        except Exception:
+            pass
+
+    def _on_send(self, *_):
+        msg = self.entry.get().strip()
+        if not msg:
+            return
+        ok = self.app._send_text_to_node(self.node_id, msg)
+        if ok:
+            self.entry.delete(0, "end")
+
+    def _on_close(self):
+        key = str(self.node_id)
+        try:
+            if key in self.app._per_node_chats:
+                del self.app._per_node_chats[key]
+        except Exception:
+            pass
+        self.top.destroy()
 def main():
     app = MeshtasticGUI()
     app.root.geometry("1500x820")