diff --git a/flix/control.cpp b/flix/control.cpp
index e5f9a0c..8c04f3a 100644
--- a/flix/control.cpp
+++ b/flix/control.cpp
@@ -4,6 +4,7 @@
 // Flight control
 
 #include "config.h"
+#include "flix.h"
 #include "vector.h"
 #include "quaternion.h"
 #include "pid.h"
diff --git a/flix/motors.cpp b/flix/motors.cpp
index 9512614..0f5f95f 100644
--- a/flix/motors.cpp
+++ b/flix/motors.cpp
@@ -9,17 +9,6 @@
 #include "flix.h"
 #include "util.h"
 
-#define MOTOR_0_PIN 12 // rear left
-#define MOTOR_1_PIN 13 // rear right
-#define MOTOR_2_PIN 14 // front right
-#define MOTOR_3_PIN 15 // front left
-
-#define PWM_FREQUENCY 78000
-#define PWM_RESOLUTION 10
-#define PWM_STOP 0
-#define PWM_MIN 0
-#define PWM_MAX 1000000 / PWM_FREQUENCY
-
 float motors[4]; // normalized motor thrusts in range [0..1]
 
 extern const int MOTOR_REAR_LEFT = 0;