diff --git a/usermods/Temperature/usermod_temperature.h b/usermods/Temperature/usermod_temperature.h
index 5ac992f952..23c5606500 100644
--- a/usermods/Temperature/usermod_temperature.h
+++ b/usermods/Temperature/usermod_temperature.h
@@ -17,6 +17,8 @@
 #define USERMOD_DALLASTEMPERATURE_MEASUREMENT_INTERVAL 60000
 #endif
 
+static uint16_t mode_temperature();
+
 class UsermodTemperature : public Usermod {
 
   private:
@@ -60,6 +62,7 @@ class UsermodTemperature : public Usermod {
     static const char _sensor[];
     static const char _temperature[];
     static const char _Temperature[];
+    static const char _data_fx[];
     
     //Dallas sensor quick (& dirty) reading. Credit to - Author: Peter Scargill, August 17th, 2013
     float readDallas();
@@ -70,8 +73,13 @@ class UsermodTemperature : public Usermod {
     void publishHomeAssistantAutodiscovery();
 #endif
 
+    static UsermodTemperature* _instance; // to overcome nonstatic getTemperatureC() method and avoid usermods.lookup(USERMOD_ID_TEMPERATURE);
+
   public:
 
+    UsermodTemperature() { _instance = this; }
+    static UsermodTemperature *getInstance() { return UsermodTemperature::_instance; }
+
     /*
      * API calls te enable data exchange between WLED modules
      */
@@ -234,6 +242,7 @@ void UsermodTemperature::setup() {
       }
       temperaturePin = -1;  // allocation failed
     }
+    if (sensorFound && !initDone) strip.addEffect(255, &mode_temperature, _data_fx);
   }
   lastMeasurement = millis() - readingInterval + 10000;
   initDone = true;
@@ -440,6 +449,8 @@ const char *UsermodTemperature::getTemperatureUnit() {
   return degC ? "°C" : "°F";
 }
 
+UsermodTemperature* UsermodTemperature::_instance = nullptr;
+
 // strings to reduce flash memory usage (used more than twice)
 const char UsermodTemperature::_name[]         PROGMEM = "Temperature";
 const char UsermodTemperature::_enabled[]      PROGMEM = "enabled";
@@ -449,4 +460,14 @@ const char UsermodTemperature::_parasitePin[]  PROGMEM = "parasite-pwr-pin";
 const char UsermodTemperature::_domoticzIDX[]  PROGMEM = "domoticz-idx";
 const char UsermodTemperature::_sensor[]       PROGMEM = "sensor";
 const char UsermodTemperature::_temperature[]  PROGMEM = "temperature";
-const char UsermodTemperature::_Temperature[]  PROGMEM = "/temperature";
\ No newline at end of file
+const char UsermodTemperature::_Temperature[]  PROGMEM = "/temperature";
+const char UsermodTemperature::_data_fx[]      PROGMEM = "Temperature@Min,Max;;!;01;pal=54";
+
+static uint16_t mode_temperature() {
+  float low  = mapf((float)SEGMENT.speed, 0.f, 255.f, -150.f, 149.9f);    // default: 0°C, range: -15°C to 15°C
+  float high = mapf((float)SEGMENT.intensity, 0.f, 255.f, 150.f, 450.f);  // default: 30°C, range 15°C to 45°C
+  float temp = constrain(UsermodTemperature::getInstance()->getTemperatureC()*10.f, low, high);   // get a little better resolution
+  unsigned i = map(temp, (unsigned)low, (unsigned)high, 0, 255);
+  SEGMENT.fill(SEGMENT.color_from_palette(i, false, false, 255));
+  return FRAMETIME;
+}
diff --git a/usermods/audioreactive/audio_reactive.h b/usermods/audioreactive/audio_reactive.h
index 088ac880b8..fde7afded0 100644
--- a/usermods/audioreactive/audio_reactive.h
+++ b/usermods/audioreactive/audio_reactive.h
@@ -149,7 +149,6 @@ static bool useBandPassFilter = false;                    // if true, enables a
 ////////////////////
 
 // some prototypes, to ensure consistent interfaces
-static float mapf(float x, float in_min, float in_max, float out_min, float out_max); // map function for float
 static float fftAddAvg(int from, int to);   // average of several FFT result bins
 void FFTcode(void * parameter);      // audio processing task: read samples, run FFT, fill GEQ channels from FFT results
 static void runMicFilter(uint16_t numSamples, float *sampleBuffer);          // pre-filtering of raw samples (band-pass)
@@ -211,11 +210,6 @@ static ArduinoFFT<float> FFT = ArduinoFFT<float>( vReal, vImag, samplesFFT, SAMP
 
 // Helper functions
 
-// float version of map()
-static float mapf(float x, float in_min, float in_max, float out_min, float out_max){
-  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
-}
-
 // compute average of several FFT result bins
 static float fftAddAvg(int from, int to) {
   float result = 0.0f;
diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index 807594e430..0084b09e0f 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -6483,11 +6483,6 @@ static const char _data_FX_MODE_2DWAVERLY[] PROGMEM = "Waverly@Amplification,Sen
 
 #endif // WLED_DISABLE_2D
 
-// float version of map()
-static float mapf(float x, float in_min, float in_max, float out_min, float out_max){
-  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
-}
-
 // Gravity struct requited for GRAV* effects
 typedef struct Gravity {
   int    topLED;
diff --git a/wled00/fcn_declare.h b/wled00/fcn_declare.h
index f8399b1ad6..a95064a2a6 100644
--- a/wled00/fcn_declare.h
+++ b/wled00/fcn_declare.h
@@ -378,6 +378,7 @@ uint16_t crc16(const unsigned char* data_p, size_t length);
 um_data_t* simulateSound(uint8_t simulationId);
 void enumerateLedmaps();
 uint8_t get_random_wheel_index(uint8_t pos);
+float mapf(float x, float in_min, float in_max, float out_min, float out_max);
 
 // RAII guard class for the JSON Buffer lock
 // Modeled after std::lock_guard
diff --git a/wled00/util.cpp b/wled00/util.cpp
index 2e70564489..99a75bdd30 100644
--- a/wled00/util.cpp
+++ b/wled00/util.cpp
@@ -612,3 +612,8 @@ uint8_t get_random_wheel_index(uint8_t pos) {
   }
   return r;
 }
+
+// float version of map()
+float mapf(float x, float in_min, float in_max, float out_min, float out_max) {
+  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
+}