läuft mit Telnet

robot/fluidnc/FluidNCClient.js

@@ -0,0 +1,60 @@
+const WebSocket = require("ws");
+const EventEmitter = require("events");
+
+class FluidNCClient extends EventEmitter {
+    constructor(cfg) {
+        super();
+
+        this.host = cfg.host;
+        this.port = cfg.port || 81;
+
+        this.ws = null;
+        this.reconnectDelay = 2000;
+
+        this.connect();
+    }
+
+    connect() {
+        const url = `ws://${this.host}:${this.port}`;
+        console.log("[FluidNC] Connecting to:", url);
+
+        this.ws = new WebSocket(url);
+
+        this.ws.on("open", () => {
+            console.log("[FluidNC] Connected (WS)");
+        });
+
+        this.ws.on("message", (msg) => {
+            this.emit("message", msg.toString());
+        });
+
+        this.ws.on("close", () => {
+            console.log("[FluidNC] Disconnected → retry");
+            setTimeout(() => this.connect(), this.reconnectDelay);
+        });
+
+        this.ws.on("error", (err) => {
+            console.log("[FluidNC] WS Error:", err.message);
+        });
+    }
+
+    sendLine(cmd) {
+        if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+            this.ws.send(cmd + "\n");
+        }
+    }
+
+    requestStatus() {
+        this.sendLine("?");
+    }
+
+    sendGcode(cmd) {
+        this.sendLine(cmd);
+    }
+
+    onMessage(fn) {
+        this.on("message", fn);
+    }
+}
+
+module.exports = FluidNCClient;