AIRBOT F4 S6_OUT is PA8

src/main/target/REVO/target.c

@@ -39,6 +39,10 @@ const timerHardware_t timerHardware[USABLE_TIMER_CHANNEL_COUNT] = {
     DEF_TIM(TIM4, CH1, PB6, TIM_USE_LED,     0, 0),  // LED for REVOLT D1_ST0
 #else
     DEF_TIM(TIM5, CH2, PA1, TIM_USE_MOTOR | TIM_USE_LED, 1, 0),  // S5_OUT / LED for REVO D1_ST4
+#ifdef AIRBOTF4
+    DEF_TIM(TIM1,  CH1, PA8,  TIM_USE_MOTOR, 1, 0),  // S6_OUT
+#else
     DEF_TIM(TIM5, CH1, PA0, TIM_USE_MOTOR,   1, 0),  // S6_OUT D1_ST2
 #endif
+#endif
 };