From 87ff532a419f3053c1745160a8c370c83f4ab548 Mon Sep 17 00:00:00 2001
From: fleek <flee7100@gmail.com>
Date: Fri, 24 Jul 2020 16:58:46 +0800
Subject: [PATCH] Filament Runout pin for Creality v4.2.2 board (#18763)

---
 Marlin/src/pins/stm32f1/pins_CREALITY_V4.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h b/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
index 8a413945b..ed281eb00 100644
--- a/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
+++ b/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
@@ -79,6 +79,13 @@
 
 #define Z_PROBE_PIN                         PB1   // BLTouch IN
 
+//
+// Filament Runout Sensor
+//
+#ifndef FIL_RUNOUT_PIN
+  #define FIL_RUNOUT_PIN                    PA4   // "Pulled-high"
+#endif
+
 //
 // Steppers
 //