Test for sending taken photo to nodered

rpi/services/detection_service.py

@@ -1,6 +1,7 @@
 import cv2
 import numpy as np
 from pathlib import Path
+
 from ultralytics.engine.results import Results
 
 from hardware.camera.camera import Camera
@@ -39,10 +40,10 @@ class DetectionService:
     def stop(self):
         self.camera.close()
 
-    def analyze_single_frame(self) -> str | None:
+    def analyze_single_frame(self) -> tuple[np.ndarray, str | None]:
         frame = self.camera.take_photo()
         fen = self.__get_fen(frame)
-        return fen
+        return frame, fen
 
 
     def __run_complete_detection(self, frame : np.ndarray, display=False) -> dict[str, list[Results]] :