From 73998d6f670fc1adb2e1baf908c9f1483136769c Mon Sep 17 00:00:00 2001
From: Hendrik Langer <hendrik+dev@xd0.de>
Date: Wed, 7 Aug 2019 16:02:30 +0200
Subject: [PATCH] fast display update (without refresh)

---
 src/main.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index b6e4bef..ca9e074 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -263,7 +263,12 @@ void displayValues() {
   char timeStr[40];
   getTime(timeStr, sizeof(timeStr), "%d. %b %Y  %H:%M:%S");
 
-  display.setFullWindow();
+
+  if (display.epd2.hasFastPartialUpdate) {
+    display.setPartialWindow(0, 0, display.width(), display.height());
+  } else {
+    display.setFullWindow();
+  }
   display.firstPage();
   do
   {