fix

device_worker.py

@@ -38,6 +38,14 @@ class DeviceWorker:
     def stop(self):
         print(f"[{self.serial}] Worker.stop()")
         self._cmdq.put(("stop", None))
+    
+    def shutdown(self):
+        self.stop()
+        self._stop_evt.set()
+
+    def set_mode(self, ch, mode):
+        key = {0: "A", 1: "B"}.get(ch, str(ch).upper())
+        self.dev.channels[key].mode = mode
 
     def _reader_loop(self):
         print(f"[{self.serial}] Reader gestartet (interval={self.interval}, n={self.filter_window_size})")
@@ -62,7 +70,7 @@ class DeviceWorker:
                 ia = float(np.mean([s[0][1] for s in samples]))
                 
                 print(f"[{self.serial}] got {len(samples)} samples; vb={vb:.3f}, ia={ia:.3f}")
-                
+
                 now = time.time()
                 if now - last_log >= 1.0:  # 1 Hz loggen
                     self._writer_q.put((now, vb, ia))