From f20eda360f341d53c4a628dab7a875c71098149f Mon Sep 17 00:00:00 2001
From: socke7 <31484741+socke7@users.noreply.github.com>
Date: Sun, 1 Oct 2023 09:35:31 +0200
Subject: [PATCH] match calculation of automatic brightness control to real bit
 width of the LDR sensor signal; sensor signal is 10bit, so 100% brightness is
 reached at 1023.0 - not 4095.0

---
 src/PeripheryManager.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PeripheryManager.cpp b/src/PeripheryManager.cpp
index 73f1fddb..b8abdaeb 100644
--- a/src/PeripheryManager.cpp
+++ b/src/PeripheryManager.cpp
@@ -464,7 +464,7 @@ void PeripheryManager_::tick()
         CURRENT_LUX = (roundf(photocell.getSmoothedLux() * 1000) / 1000);
         if (AUTO_BRIGHTNESS && !MATRIX_OFF)
         {
-            brightnessPercent = sampleAverage / 4095.0 * 100.0;
+            brightnessPercent = sampleAverage / 1023.0 * 100.0;
             BRIGHTNESS = map(brightnessPercent, 0, 100, MIN_BRIGHTNESS, MAX_BRIGHTNESS);
             DisplayManager.setBrightness(BRIGHTNESS);
         }