connect the seven segment reloaded usermod to BH1750 usermod (#4503)

wled · Jan 20, 2025 · 01a7113 · 01a7113
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diff --git a/usermods/seven_segment_display_reloaded/readme.md b/usermods/seven_segment_display_reloaded/readme.md
@@ -9,7 +9,7 @@ Very loosely based on the existing usermod "seven segment display".
 
 Add the compile-time option `-D USERMOD_SSDR` to your `platformio.ini` (or `platformio_override.ini`) or use `#define USERMOD_SSDR` in `my_config.h`.
 
-For the auto brightness option, the usermod SN_Photoresistor has to be installed as well. See SN_Photoresistor/readme.md for instructions.
+For the auto brightness option, the usermod SN_Photoresistor or BH1750_V2 has to be installed as well. See SN_Photoresistor/readme.md or BH1750_V2/readme.md for instructions.
 
 ## Settings
 All settings can be controlled via the usermod settings page.
@@ -28,10 +28,10 @@ Enables the blinking colon(s) if they are defined
 Shows the leading zero of the hour if it exists (i.e. shows `07` instead of `7`)
 
 ### enable-auto-brightness
-Enables the auto brightness feature. Can be used only when the usermod SN_Photoresistor is installed.
+Enables the auto brightness feature. Can be used only when the usermods SN_Photoresistor or BH1750_V2 are installed.
 
 ### auto-brightness-min / auto-brightness-max
-The lux value calculated from usermod SN_Photoresistor will be mapped to the values defined here.
+The lux value calculated from usermod SN_Photoresistor or BH1750_V2 will be mapped to the values defined here.
 The mapping, 0 - 1000 lux, will be mapped to auto-brightness-min and auto-brightness-max
 
 WLED current protection will override the calculated value if it is too high.

diff --git a/usermods/seven_segment_display_reloaded/usermod_seven_segment_reloaded.h b/usermods/seven_segment_display_reloaded/usermod_seven_segment_reloaded.h
@@ -97,6 +97,11 @@ class UsermodSSDR : public Usermod {
 #else
   void* ptr = nullptr;
 #endif
+#ifdef USERMOD_BH1750
+  Usermod_BH1750* bh1750 = nullptr;
+#else
+  void* bh1750 = nullptr;
+#endif
 
   void _overlaySevenSegmentDraw() {
     int displayMaskLen = static_cast<int>(umSSDRDisplayMask.length());
@@ -387,6 +392,9 @@ class UsermodSSDR : public Usermod {
     #ifdef USERMOD_SN_PHOTORESISTOR
       ptr = (Usermod_SN_Photoresistor*) UsermodManager::lookup(USERMOD_ID_SN_PHOTORESISTOR);
     #endif
+    #ifdef USERMOD_BH1750
+      bh1750 = (Usermod_BH1750*) UsermodManager::lookup(USERMOD_ID_BH1750);
+    #endif
     DEBUG_PRINTLN(F("Setup done"));
   }
 
@@ -410,6 +418,20 @@ class UsermodSSDR : public Usermod {
         umSSDRLastRefresh = millis();
       }
     #endif
+    #ifdef USERMOD_BH1750
+      if(bri != 0 && umSSDREnableLDR && (millis() - umSSDRLastRefresh > umSSDRResfreshTime)) {
+        if (bh1750 != nullptr) {
+          float lux = bh1750->getIlluminance();
+          uint16_t brightness = map(lux, 0, 1000, umSSDRBrightnessMin, umSSDRBrightnessMax);
+          if (bri != brightness) {
+            DEBUG_PRINTF("Adjusting brightness based on lux value: %.2f lx, new brightness: %d\n", lux, brightness);
+            bri = brightness;
+            stateUpdated(1);
+          }
+        }
+        umSSDRLastRefresh = millis();
+      }
+    #endif
   }
 
   void handleOverlayDraw() {