From baaf79b75563397876e0f2574b8ecbd46866c929 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Sat, 10 Feb 2018 15:30:29 -0600
Subject: [PATCH] Use signed for pin_t

---
 Marlin/fastio.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/fastio.h b/Marlin/fastio.h
index bbceaa6a33..0f7df9765c 100644
--- a/Marlin/fastio.h
+++ b/Marlin/fastio.h
@@ -31,7 +31,7 @@
 
 #include <stdint.h>
 
-typedef uint8_t pin_t;
+typedef int8_t pin_t;
 
 #include <avr/io.h>