From b9a58917417ccb1ec517e31363c207ad38105fa1 Mon Sep 17 00:00:00 2001
From: Marcio Teixeira <marcio@alephobjects.com>
Date: Tue, 22 Aug 2017 14:53:46 -0600
Subject: [PATCH] Added ability to manually enable/disable probe pin

---
 Marlin/Conditionals_LulzBot.h | 8 ++++++++
 Marlin/Marlin_main.cpp        | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/Marlin/Conditionals_LulzBot.h b/Marlin/Conditionals_LulzBot.h
index 6c4216e6e..bdd1ab30a 100644
--- a/Marlin/Conditionals_LulzBot.h
+++ b/Marlin/Conditionals_LulzBot.h
@@ -396,6 +396,14 @@
     #define LULZBOT_ENABLE_PROBE_PINS(enable)
 #endif
 
+/* Make it so M42 S<state> controls the state of the
+/* probe lines. This is useful for troubleshooting. */
+#define LULZBOT_M42_TOGGLES_PROBE_PINS \
+    if (!parser.seenval('P')) { \
+      LULZBOT_ENABLE_PROBE_PINS(pin_status); \
+      return; \
+    }
+
 #define LULZBOT_FAN_KICKSTART_TIME          100
 #define LULZBOT_FAN_MIN_PWM                  70
 #define LULZBOT_HOST_KEEPALIVE_FEATURE_DISABLED
diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index 283e951b7..a58bb33c8 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -6434,6 +6434,8 @@ inline void gcode_M42() {
   if (!parser.seenval('S')) return;
   const byte pin_status = parser.value_byte();
 
+  LULZBOT_M42_TOGGLES_PROBE_PINS
+
   const int pin_number = parser.intval('P', LED_PIN);
   if (pin_number < 0) return;