From 21edd52063ecb79a8755403c7ef418fbd49377c3 Mon Sep 17 00:00:00 2001
From: ellensp <530024+ellensp@users.noreply.github.com>
Date: Thu, 20 Mar 2025 09:45:30 +1300
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20Fix=20RAMPS=20AUX1=20RX/TX=20pin?=
 =?UTF-8?q?s=20(#27745)?=
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---
 Marlin/src/pins/ramps/pins_RAMPS.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Marlin/src/pins/ramps/pins_RAMPS.h b/Marlin/src/pins/ramps/pins_RAMPS.h
index 2d82b36f77..79c3b9d0c1 100644
--- a/Marlin/src/pins/ramps/pins_RAMPS.h
+++ b/Marlin/src/pins/ramps/pins_RAMPS.h
@@ -484,15 +484,15 @@
 #endif
 
 //
-// AUX1    5V  GND D2  D1
+// AUX1    5V  GND D1  D0
 //          2   4   6   8
 //          1   3   5   7
 //         5V  GND A3  A4
 //
 #define AUX1_05                               57  // (A3)
-#define AUX1_06                                2
+#define AUX1_06                                1  // TX0
 #define AUX1_07                               58  // (A4)
-#define AUX1_08                                1
+#define AUX1_08                                0  // RX0
 
 //
 // AUX2    GND A9 D40 D42 A11