From 922cb5ae0a7b3847de63fe2c05a57796a3fff8d6 Mon Sep 17 00:00:00 2001
From: Djuri Baars <dsbaars@users.noreply.github.com>
Date: Sat, 9 Sep 2023 20:45:05 +0200
Subject: [PATCH] Full refresh a display every 30 minutes

---
 src/tasks/epd.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/tasks/epd.cpp b/src/tasks/epd.cpp
index c0df9fc..9c034cb 100644
--- a/src/tasks/epd.cpp
+++ b/src/tasks/epd.cpp
@@ -319,7 +319,9 @@ void updateDisplay(void *pvParameters)
 #endif
             // displays[epdIndex].init(0, false);
             bool updatePartial = true;
-            if (!lastFullRefresh[epdIndex])
+
+            // Full Refresh every half hour
+            if (!lastFullRefresh[epdIndex] || (millis() - lastFullRefresh[epdIndex])  > (30 * 60 * 1000))
             {
                 updatePartial = false;
                 lastFullRefresh[epdIndex] = millis();