diff --git a/Inc/common.h b/Inc/common.h
index ee154498..f734e8a8 100644
--- a/Inc/common.h
+++ b/Inc/common.h
@@ -24,6 +24,11 @@ extern char ic_timer_prescaler;
 extern uint8_t buffersize;
 extern char output_timer_prescaler;
 extern uint8_t compute_dshot_flag;
+extern uint16_t battery_voltage;
+extern int16_t actual_current;
+extern uint16_t e_rpm;
+
+
 #ifdef STMICRO
 extern GPIO_TypeDef* current_GPIO_PORT;
 #ifndef MCU_F031