diff --git a/main.py b/main.py
index 959a7d3..09b147b 100644
--- a/main.py
+++ b/main.py
@@ -1,8 +1,11 @@
-import wifi_server
-from machine import Pin
-from neopixel import NeoPixel
-np = NeoPixel(Pin(8), 1)
-np[0] = (0, 0, 0)
-np.write()
+try:
+    from machine import Pin
+    from neopixel import NeoPixel
+    np = NeoPixel(Pin(8), 1)
+    np[0] = (0, 0, 0)
+    np.write()
+except Exception as e:
+    print("rgb off failed", e)
 
+import wifi_server
 wifi_server.main()
diff --git a/wifi_server.py b/wifi_server.py
index 85a25ce..0108a5f 100644
--- a/wifi_server.py
+++ b/wifi_server.py
@@ -53,6 +53,9 @@ def delete_code(name, filename=CODES_FILE):
 def capture_and_save(name, timeout_ms=5000, idle_us=8000, recv_pin=None):
     from capture import capture_raw, RECV_PIN
     pin = recv_pin if recv_pin is not None else RECV_PIN
+
+    time.sleep_ms(200)
+
     timings = capture_raw(pin_num=pin, timeout_ms=timeout_ms, idle_us=idle_us)
     if not timings:
         return False, 0
@@ -142,8 +145,10 @@ def handle_request(path, headers, api_key):
             ok, count = capture_and_save(name, timeout_ms=timeout_ms)
             if ok:
                 return 200, {"status": "ok", "saved": name, "pulses": count}
-            else:
+            elif count == 0:
                 return 408, {"error": "сигнал не обнаружен (таймаут)"}
+            else:
+                return 422, {"error": f"сигнал похож на помеху ({count} импульсов, ожидается от 6)"}
         except Exception as e:
             return 500, {"error": str(e)}
 
@@ -209,7 +214,7 @@ def run_server(ip, api_key=None):
             body_bytes = body_json.encode("utf-8")
 
             status_text = {200: "OK", 400: "Bad Request", 401: "Unauthorized", 404: "Not Found",
-                           408: "Request Timeout", 500: "Internal Server Error"}.get(status, "OK")
+                           408: "Request Timeout", 422: "Unprocessable Entity", 500: "Internal Server Error"}.get(status, "OK")
 
             response_headers = (
                 f"HTTP/1.1 {status} {status_text}\r\n"