diff --git a/peripheral/main.py b/peripheral/main.py
index fc65736..ddaed04 100644
--- a/peripheral/main.py
+++ b/peripheral/main.py
@@ -1,3 +1,4 @@
+import gc
 import utime
 import ujson
 import network
@@ -89,14 +90,6 @@ class App:
         print(f"Connected with IP {self.wlan.ifconfig()[0]}")
         self.update_server()
 
-    def health_check_server(self):
-        print("Health checking server...", end="\r")
-        try:
-            r = urequests.get(f"{self.server}/")
-            print(f"Server healthy [{r.status_code}]{" " * 8}")
-        except Exception as e:
-            print(f"Error occurred: {e}")
-
     def update_server(self):
         print("Updating state...", end="\r")
         data = {"opened": self.opened}
@@ -129,7 +122,7 @@ class App:
 
         delta_time = received_time - sent_time
         distance = delta_time / 1_000_000 * SOUND_SPEED / 2
-        print(f"Distance: {distance} cm")
+        print(f"Distance: {distance:0<5} cm; mem_free = {gc.mem_free()}")
 
         return distance
 
@@ -161,13 +154,14 @@ class App:
                         self.previously_opened = True
 
                 if i >= 20:
+                    print("Blinking...")
                     self.led.toggle()
                     utime.sleep_ms(100)
                     self.led.toggle()
                     utime.sleep_ms(400)
 
                     i = 0
-                    self.health_check_server()
+                    gc.collect()
                 else:
                     utime.sleep_ms(500)