From c2c5c5bf763f153a10235ddc9a88a936829b4412 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karl-Petter=20=C3=85kesson?= <karl-petter@yelloworb.com>
Date: Thu, 9 Apr 2015 09:23:03 +0200
Subject: [PATCH] Added two comments to explain the while-loop in now()

---
 Time.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Time.cpp b/Time.cpp
index 4cb01e7..b12baec 100644
--- a/Time.cpp
+++ b/Time.cpp
@@ -248,7 +248,9 @@ time_t sysUnsyncedTime = 0; // the time sysTime unadjusted by sync
 
 
 time_t now() {
-  while (millis() - prevMillis >= 1000){      
+	// calculate number of seconds passed since last call to now()
+  while (millis() - prevMillis >= 1000) {
+		// millis() and prevMillis are both unsigned ints thus the subtraction will always be the absolute value of the difference
     sysTime++;
     prevMillis += 1000;	
 #ifdef TIME_DRIFT_INFO