diff --git a/remote_control/keyboard_controller.py b/remote_control/keyboard_controller.py
index 770e8f2..9e47cb7 100644
--- a/remote_control/keyboard_controller.py
+++ b/remote_control/keyboard_controller.py
@@ -28,27 +28,27 @@ while running:
             if event.key == pygame.K_LEFT:
                 u1 = -vmax 
                 u2 = vmax
-                print("turn left: ({},{})".format(u1, u2))
+                print(f"turn left: ({u1},{u2})")
             elif event.key == pygame.K_RIGHT:
                 u1 = vmax
                 u2 = -vmax
-                print("turn right: ({},{})".format(u1, u2))
+                print(f"turn right: ({u1},{u2})")
             elif event.key == pygame.K_UP:
                 u1 = vmax
                 u2 = vmax
-                print("forward: ({},{})".format(u1, u2))
+                print(f"forward: ({u1},{u2})")
             elif event.key == pygame.K_DOWN:
                 u1 = -vmax 
                 u2 = -vmax 
-                print("backward: ({},{})".format(u1, u2))
+                print(f"backward: ({u1},{u2})")
             elif event.key == pygame.K_ESCAPE:
                 print("quit")
-		running = False
+                running = False
                 u1 = 0.0
                 u2 = 0.0
-            rc_socket.send('({},{})\n'.format(u1, u2))
+            rc_socket.send(f'({u1},{u2})\n'.encode())
         elif event.type == pygame.KEYUP:
             print("key released, resetting: ({},{})".format(u1, u2))
-            rc_socket.send('({},{})\n'.format(u1, u2))
+            rc_socket.send(f'({u1},{u2})\n'.encode())