From 169cdd090853084f9cbf8784248c601434854531 Mon Sep 17 00:00:00 2001
From: Brett Beauregard <br3ttb@gmail.com>
Date: Thu, 19 Jul 2012 06:33:34 -0400
Subject: [PATCH] changed SampleTime datatype

there was a "comparison between signed and unsigned integer expressions"
warning when the library compiled.  I cannot think of any reason why this
have caused a problem, but this fix gets rid of it anyway.
---
 PID_v1/PID_v1.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PID_v1/PID_v1.h b/PID_v1/PID_v1.h
index 2b3874f..ef3ea4d 100644
--- a/PID_v1/PID_v1.h
+++ b/PID_v1/PID_v1.h
@@ -72,7 +72,7 @@ class PID
 	unsigned long lastTime;
 	double ITerm, lastInput;
 
-	int SampleTime;
+	unsigned long SampleTime;
 	double outMin, outMax;
 	bool inAuto;
 };