increased verbosity

series4_emitter.py

@@ -367,20 +367,33 @@ def main() -> None:
     if not os.path.isdir(THORDATA_PATH):
         print(f"[WARN] THORDATA_PATH does not exist: {THORDATA_PATH}", file=sys.stderr)
 
+    loop_counter = 0
+
     try:
         while True:
+            loop_counter += 1
+            print(f"\n[LOOP] Iteration {loop_counter} starting...", flush=True)
+
             try:
                 unit_map = scan_thordata(THORDATA_PATH)
+                debug(f"scan_thordata found {len(unit_map)} units")
                 print_heartbeat(unit_map)
                 emit_sfm_payload(unit_map)
+                print("[LOOP] Iteration complete, entering sleep...", flush=True)
             except Exception as e:
                 # Catch-all so a single error doesn't kill the loop
                 print(f"[ERROR] Exception in main loop: {e}", file=sys.stderr)
+                sys.stderr.flush()
+
+            # Sleep in 1-second chunks to avoid VM time drift weirdness
+            for i in range(SCAN_INTERVAL):
+                time.sleep(1)
+            print("[LOOP] Woke up for next scan", flush=True)
 
-            time.sleep(SCAN_INTERVAL)
     except KeyboardInterrupt:
         print("\nSeries 4 Emitter stopped by user.")
 
 
+
 if __name__ == "__main__":
     main()