diff --git a/src/CHANGES.md b/src/CHANGES.md
index f142a012..6c59822e 100644
--- a/src/CHANGES.md
+++ b/src/CHANGES.md
@@ -10,6 +10,8 @@
 * 2.42" display (SSD1309) integration PR #1139
 * update user manual PR #1121
 * add / rename alarm codes PR #1118
+* revert default pin ESP32 for NRF23-CE #1132
+* luminance of display can be changed during runtime #1106
 
 ## 0.7.45 - 2023-08-29
 * change ePaper text to symbols PR #1131
diff --git a/src/config/config.h b/src/config/config.h
index 397ad15a..54686ab8 100644
--- a/src/config/config.h
+++ b/src/config/config.h
@@ -68,7 +68,7 @@
         #define DEF_NRF_CS_PIN          5
     #endif
     #ifndef DEF_NRF_CE_PIN
-        #define DEF_NRF_CE_PIN          17
+        #define DEF_NRF_CE_PIN          4
     #endif
     #ifndef DEF_NRF_IRQ_PIN
         #define DEF_NRF_IRQ_PIN         16
diff --git a/src/plugins/Display/Display.h b/src/plugins/Display/Display.h
index 915a7475..36a7df46 100644
--- a/src/plugins/Display/Display.h
+++ b/src/plugins/Display/Display.h
@@ -59,7 +59,7 @@ class Display {
 
     void tickerSecond() {
         if (mMono != NULL)
-            mMono->loop();
+            mMono->loop(mCfg->contrast);
 
         if (mNewPayload || (((++mLoopCnt) % 30) == 0)) {
             mNewPayload = false;
diff --git a/src/plugins/Display/Display_Mono_128X32.h b/src/plugins/Display/Display_Mono_128X32.h
index e9e09d28..5a6d6c7e 100644
--- a/src/plugins/Display/Display_Mono_128X32.h
+++ b/src/plugins/Display/Display_Mono_128X32.h
@@ -46,11 +46,16 @@ class DisplayMono128X32 : public DisplayMono {
             mLuminance = lum;
         }
 
-        void loop(void) {
+        void loop(uint8_t lum) {
             if (mEnPowerSafe) {
                 if (mTimeout != 0)
                     mTimeout--;
             }
+
+            if(mLuminance != lum) {
+                mLuminance = lum;
+                mDisplay->setContrast(mLuminance);
+            }
         }
 
         void disp(float totalPower, float totalYieldDay, float totalYieldTotal, uint8_t isprod) {
diff --git a/src/plugins/Display/Display_Mono_128X64.h b/src/plugins/Display/Display_Mono_128X64.h
index b7d52868..438cb79e 100644
--- a/src/plugins/Display/Display_Mono_128X64.h
+++ b/src/plugins/Display/Display_Mono_128X64.h
@@ -54,11 +54,16 @@ class DisplayMono128X64 : public DisplayMono {
             mLuminance = lum;
         }
 
-        void loop(void) {
+        void loop(uint8_t lum) {
             if (mEnPowerSafe) {
                 if (mTimeout != 0)
                     mTimeout--;
             }
+
+            if(mLuminance != lum) {
+                mLuminance = lum;
+                mDisplay->setContrast(mLuminance);
+            }
         }
 
         void disp(float totalPower, float totalYieldDay, float totalYieldTotal, uint8_t isprod) {
diff --git a/src/plugins/Display/Display_Mono_64X48.h b/src/plugins/Display/Display_Mono_64X48.h
index 67b38e44..ae074c33 100644
--- a/src/plugins/Display/Display_Mono_64X48.h
+++ b/src/plugins/Display/Display_Mono_64X48.h
@@ -47,11 +47,16 @@ class DisplayMono64X48 : public DisplayMono {
             mLuminance = lum;
         }
 
-        void loop(void) {
+        void loop(uint8_t lum) {
             if (mEnPowerSafe) {
                 if (mTimeout != 0)
                     mTimeout--;
             }
+
+            if(mLuminance != lum) {
+                mLuminance = lum;
+                mDisplay->setContrast(mLuminance);
+            }
         }
 
         void disp(float totalPower, float totalYieldDay, float totalYieldTotal, uint8_t isprod) {
diff --git a/src/plugins/Display/Display_Mono_84X48.h b/src/plugins/Display/Display_Mono_84X48.h
index 9f7761dc..fff983bc 100644
--- a/src/plugins/Display/Display_Mono_84X48.h
+++ b/src/plugins/Display/Display_Mono_84X48.h
@@ -47,11 +47,16 @@ class DisplayMono84X48 : public DisplayMono {
             mLuminance = lum;
         }
 
-        void loop(void) {
+        void loop(uint8_t lum) {
             if (mEnPowerSafe) {
                 if (mTimeout != 0)
                     mTimeout--;
             }
+
+            if(mLuminance != lum) {
+                mLuminance = lum;
+                mDisplay->setContrast(mLuminance);
+            }
         }
 
         void disp(float totalPower, float totalYieldDay, float totalYieldTotal, uint8_t isprod) {