Merge branch 'master' into dev

Conflicts: CHANGELOG.md package.json platformio.ini usermods/Temperature/usermod_temperature.h wled00/FX.cpp wled00/FX.h wled00/FX_fcn.cpp wled00/cfg.cpp wled00/data/index.js wled00/data/settings_leds.htm wled00/data/settings_time.htm wled00/data/style.css wled00/html_other.h wled00/html_settings.h wled00/html_ui.h wled00/ntp.cpp wled00/usermods_list.cpp wled00/wled.cpp wled00/wled.h
2021-04-14 18:19:51 +02:00 · 2021-04-14 18:19:51 +02:00 · 29e048af7b
commit 29e048af7b
parent c38f0d751b f3b84f1365
29 changed files with 1179 additions and 886 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -2,11 +2,30 @@

 ### Builds after release 0.12.0

+#### Build 2104141
+
+-   Reduced memory usage by 540b by switching to a different trigonometric approximation
+
+#### Build 2104140
+
+-   Added dynamic location-based Sunrise/Sunset macros (PR #1889)
+-   Improved seasonal background handling (PR #1890)
+-   Fixed instance discovery not working if MQTT not compiled in
+-   Fixed Button, IR, Relay pin not assigned by default (resolves #1891)
+
+#### Build 2104120
+
+-   Added switch support (button macro is switch closing action, long press macro switch opening)
+-   Replaced Circus effect with new Running Dual effect (Circus is Tricolor Chase with Red/White/Black)
+-   Fixed ledmap with multiple segments (PR #1864)
+
 #### Build 2104030

 -   Fixed ESP32 crash on Drip effect with reversed segment (#1854)
 -   Added flag `WLED_DISABLE_BROWNOUT_DET` to disable ESP32 brownout detector (off by default)

+### WLED release 0.12.0
+
 #### Build 2104020

 -   Allow clearing button/IR/relay pin on platforms that don't support negative numbers
--- a/platformio.ini
+++ b/platformio.ini
@ -178,7 +178,7 @@ upload_speed = 115200
 lib_compat_mode = strict
 lib_deps =
    fastled/FastLED @ 3.3.2
-    NeoPixelBus @ 2.6.0
+    NeoPixelBus @ ^2.6.0
    ESPAsyncTCP @ 1.2.0
    ESPAsyncUDP
    AsyncTCP @ 1.0.3
@ -188,10 +188,10 @@ lib_deps =
  #For use of the TTGO T-Display ESP32 Module with integrated TFT display uncomment the following line
    #TFT_eSPI
  #For use SSD1306 OLED display uncomment following
-    #U8g2@~2.27.2
+    U8g2@~2.27.2
  #For Dallas sensor uncomment following 2 lines
-    #OneWire@~2.3.5
-    #milesburton/DallasTemperature@^3.9.0
+    OneWire@~2.3.5
+    milesburton/DallasTemperature@^3.9.0
  #For BME280 sensor uncomment following
    #BME280@~3.0.0
    ; adafruit/Adafruit BMP280 Library @ 2.1.0
@ -400,31 +400,7 @@ build_flags = ${common.build_flags_esp32} ${common.debug_flags} ${common.build_f
 # codm pixel controller board configurations
 # ------------------------------------------------------------------------------

-[env:codm-controller-0.4]
-board = esp_wroom_02
-platform = ${common.platform_wled_default}
-platform_packages = ${common.platform_packages}
-board_build.ldscript = ${common.ldscript_2m512k}
-build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags_esp8266} -D LEDPIN=3
-
-[env:codm-controller-0.4-WS2801]
-board = esp_wroom_02
-platform = ${common.platform_wled_default}
-platform_packages = ${common.platform_packages}
-board_build.ldscript = ${common.ldscript_2m512k}
-build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags_esp8266} -D USE_WS2801 -D CLKPIN=13 -D DATAPIN=3
-
-[env:codm-controller-0.4-APA102]
-board = esp_wroom_02
-platform = ${common.platform_wled_default}
-platform_packages = ${common.platform_packages}
-board_build.ldscript = ${common.ldscript_2m512k}
-build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags_esp8266} -D USE_APA102 -D CLKPIN=13 -D DATAPIN=3
-
-[env:codm-controller-0.5]
+[env:codm-controller-0.6]
 board = esp_wroom_02
 platform = ${common.platform_wled_default}
 platform_packages = ${common.platform_packages}
@ -432,18 +408,10 @@ board_build.ldscript = ${common.ldscript_2m512k}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags_esp8266}

-[env:codm-controller-0.5-WS2801]
+[env:codm-controller-0.6-rev2]
 board = esp_wroom_02
 platform = ${common.platform_wled_default}
 platform_packages = ${common.platform_packages}
-board_build.ldscript = ${common.ldscript_2m512k}
+board_build.ldscript = ${common.ldscript_4m1m}
 build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags_esp8266} -D USE_WS2801 #-D CLKPIN=0 -D DATAPIN=2
-
-[env:codm-controller-0.5-APA102]
-board = esp_wroom_02
-platform = ${common.platform_wled_default}
-platform_packages = ${common.platform_packages}
-board_build.ldscript = ${common.ldscript_2m512k}
-build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags_esp8266} -D USE_APA102 #-D CLKPIN=0 -D DATAPIN=2
+build_flags = ${common.build_flags_esp8266}
--- a/tools/WLED_ESP32_8MB.csv
+++ b/tools/WLED_ESP32_8MB.csv
@ -0,0 +1,6 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x200000,
+app1,     app,  ota_1,   0x210000,0x200000,
+spiffs,   data, spiffs,  0x410000,0x3F0000,
--- a/usermods/Animated_Staircase/README.md
+++ b/usermods/Animated_Staircase/README.md
@ -93,8 +93,8 @@ or remove them and put everything on one line.
 | segment-delay-ms | Delay (milliseconds) between switching on/off each step       | 150     |
 | on-time-s        | Time (seconds) the stairs stay lit after last detection       | 5       |
 | bottom-echo-us   | Detection range of ultrasonic sensor                          | 1749    |
-| bottomsensor     | Manually trigger a down to up animation via API               | false   | 
-| topsensor        | Manually trigger an up to down animation via API              | false   |
+| bottom-sensor    | Manually trigger a down to up animation via API               | false   | 
+| top-sensor       | Manually trigger an up to down animation via API              | false   |


 To read the current settings, open a browser to `http://xxx.xxx.xxx.xxx/json/state` (use your WLED 
@ -108,8 +108,8 @@ The staircase settings and sensor states are inside the WLED status element:
            "enabled": true,
            "segment-delay-ms": 150,
            "on-time-s": 5,
-            "bottomsensor": false,
-            "topsensor": false
+            "bottom-sensor": false,
+            "tops-ensor": false
        },
 }
 ```
@ -187,7 +187,7 @@ the API. To simulate triggering the bottom sensor, use:

 ```bash
 curl -X POST -H "Content-Type: application/json" \
-     -d '{"staircase":{"bottomsensor":true}}' \
+     -d '{"staircase":{"bottom-sensor":true}}' \
     xxx.xxx.xxx.xxx/json/state
 ```

@ -195,7 +195,7 @@ Likewise, to trigger the top sensor, use:

 ```bash
 curl -X POST -H "Content-Type: application/json" \
-     -d '{"staircase":{"topsensor":true}}' \
+     -d '{"staircase":{"top-sensor":true}}' \
     xxx.xxx.xxx.xxx/json/state
 ```

--- a/usermods/BME280_v2/usermod_bme280.h
+++ b/usermods/BME280_v2/usermod_bme280.h
@ -12,10 +12,11 @@ private:
 // User-defined configuration
 #define Celsius               // Show temperature mesaurement in Celcius. Comment out for Fahrenheit
 #define TemperatureDecimals 1 // Number of decimal places in published temperaure values
-#define HumidityDecimals 0    // Number of decimal places in published humidity values
+#define HumidityDecimals 2    // Number of decimal places in published humidity values
 #define PressureDecimals 2    // Number of decimal places in published pressure values
 #define TemperatureInterval 5 // Interval to measure temperature (and humidity, dew point if available) in seconds
 #define PressureInterval 300  // Interval to measure pressure in seconds
+#define PublishAlways 0       // Publish values even when they have not changed

 // Sanity checks
 #if !defined(TemperatureDecimals) || TemperatureDecimals < 0
@ -33,6 +34,9 @@ private:
 #if !defined(PressureInterval) || PressureInterval < 0
  #define PressureInterval TemperatureInterval
 #endif
+#if !defined(PublishAlways)
+  #define PublishAlways 0
+#endif

 #ifdef ARDUINO_ARCH_ESP32 // ESP32 boards
  uint8_t SCL_PIN = 22;
@ -58,7 +62,7 @@ private:

  BME280I2C bme{settings};

-  uint8_t SensorType;
+  uint8_t sensorType;

  // Measurement timers
  long timer;
@ -66,11 +70,11 @@ private:
  long lastPressureMeasure = 0;

  // Current sensor values
-  float SensorTemperature;
-  float SensorHumidity;
-  float SensorHeatIndex;
-  float SensorDewPoint;
-  float SensorPressure;
+  float sensorTemperature;
+  float sensorHumidity;
+  float sensorHeatIndex;
+  float sensorDewPoint;
+  float sensorPressure;
  // Track previous sensor values
  float lastTemperature;
  float lastHumidity;
@ -96,13 +100,13 @@ private:

    bme.read(_pressure, _temperature, _humidity, tempUnit, presUnit);

-    SensorTemperature = _temperature;
-    SensorHumidity = _humidity;
-    SensorPressure = _pressure;
-    if (SensorType == 1)
+    sensorTemperature = _temperature;
+    sensorHumidity = _humidity;
+    sensorPressure = _pressure;
+    if (sensorType == 1)
    {
-      SensorHeatIndex = EnvironmentCalculations::HeatIndex(_temperature, _humidity, envTempUnit);
-      SensorDewPoint = EnvironmentCalculations::DewPoint(_temperature, _humidity, envTempUnit);
+      sensorHeatIndex = EnvironmentCalculations::HeatIndex(_temperature, _humidity, envTempUnit);
+      sensorDewPoint = EnvironmentCalculations::DewPoint(_temperature, _humidity, envTempUnit);
    }
  }

@ -113,7 +117,7 @@ public:

    if (!bme.begin())
    {
-      SensorType = 0;
+      sensorType = 0;
      Serial.println("Could not find BME280I2C sensor!");
    }
    else
@ -121,15 +125,15 @@ public:
      switch (bme.chipModel())
      {
      case BME280::ChipModel_BME280:
-        SensorType = 1;
+        sensorType = 1;
        Serial.println("Found BME280 sensor! Success.");
        break;
      case BME280::ChipModel_BMP280:
-        SensorType = 2;
+        sensorType = 2;
        Serial.println("Found BMP280 sensor! No Humidity available.");
        break;
      default:
-        SensorType = 0;
+        sensorType = 0;
        Serial.println("Found UNKNOWN sensor! Error!");
      }
    }
@ -139,7 +143,7 @@ public:
  {
    // BME280 sensor MQTT publishing
    // Check if sensor present and MQTT Connected, otherwise it will crash the MCU
-    if (SensorType != 0 && mqtt != nullptr)
+    if (sensorType != 0 && mqtt != nullptr)
    {
      // Timer to fetch new temperature, humidity and pressure data at intervals
      timer = millis();
@ -148,48 +152,48 @@ public:
      {
        lastTemperatureMeasure = timer;

-        UpdateBME280Data(SensorType);
+        UpdateBME280Data(sensorType);

-        float Temperature = roundf(SensorTemperature * pow(10, TemperatureDecimals)) / pow(10, TemperatureDecimals);
-        float Humidity, HeatIndex, DewPoint;
+        float temperature = roundf(sensorTemperature * pow(10, TemperatureDecimals)) / pow(10, TemperatureDecimals);
+        float humidity, heatIndex, dewPoint;

        // If temperature has changed since last measure, create string populated with device topic
        // from the UI and values read from sensor, then publish to broker
-        if (Temperature != lastTemperature)
+        if (temperature != lastTemperature || PublishAlways)
        {
          String topic = String(mqttDeviceTopic) + "/temperature";
-          mqttTemperaturePub = mqtt->publish(topic.c_str(), 0, false, String(Temperature, TemperatureDecimals).c_str());
+          mqttTemperaturePub = mqtt->publish(topic.c_str(), 0, false, String(temperature, TemperatureDecimals).c_str());
        }

-        lastTemperature = Temperature; // Update last sensor temperature for next loop
+        lastTemperature = temperature; // Update last sensor temperature for next loop

-        if (SensorType == 1) // Only if sensor is a BME280
+        if (sensorType == 1) // Only if sensor is a BME280
        {
-          Humidity = roundf(SensorHumidity * pow(10, HumidityDecimals)) / pow(10, HumidityDecimals);
-          HeatIndex = roundf(SensorHeatIndex * pow(10, TemperatureDecimals)) / pow(10, TemperatureDecimals);
-          DewPoint = roundf(SensorDewPoint * pow(10, TemperatureDecimals)) / pow(10, TemperatureDecimals);
+          humidity = roundf(sensorHumidity * pow(10, HumidityDecimals)) / pow(10, HumidityDecimals);
+          heatIndex = roundf(sensorHeatIndex * pow(10, TemperatureDecimals)) / pow(10, TemperatureDecimals);
+          dewPoint = roundf(sensorDewPoint * pow(10, TemperatureDecimals)) / pow(10, TemperatureDecimals);

-          if (Humidity != lastHumidity)
+          if (humidity != lastHumidity || PublishAlways)
          {
            String topic = String(mqttDeviceTopic) + "/humidity";
-            mqtt->publish(topic.c_str(), 0, false, String(Humidity, HumidityDecimals).c_str());
+            mqtt->publish(topic.c_str(), 0, false, String(humidity, HumidityDecimals).c_str());
          }

-          if (HeatIndex != lastHeatIndex)
+          if (heatIndex != lastHeatIndex || PublishAlways)
          {
            String topic = String(mqttDeviceTopic) + "/heat_index";
-            mqtt->publish(topic.c_str(), 0, false, String(HeatIndex, TemperatureDecimals).c_str());
+            mqtt->publish(topic.c_str(), 0, false, String(heatIndex, TemperatureDecimals).c_str());
          }

-          if (DewPoint != lastDewPoint)
+          if (dewPoint != lastDewPoint || PublishAlways)
          {
            String topic = String(mqttDeviceTopic) + "/dew_point";
-            mqtt->publish(topic.c_str(), 0, false, String(DewPoint, TemperatureDecimals).c_str());
+            mqtt->publish(topic.c_str(), 0, false, String(dewPoint, TemperatureDecimals).c_str());
          }

-          lastHumidity = Humidity;
-          lastHeatIndex = HeatIndex;
-          lastDewPoint = DewPoint;
+          lastHumidity = humidity;
+          lastHeatIndex = heatIndex;
+          lastDewPoint = dewPoint;
        }
      }

@ -197,15 +201,15 @@ public:
      {
        lastPressureMeasure = timer;

-        float Pressure = roundf(SensorPressure * pow(10, PressureDecimals)) / pow(10, PressureDecimals);
+        float pressure = roundf(sensorPressure * pow(10, PressureDecimals)) / pow(10, PressureDecimals);

-        if (Pressure != lastPressure)
+        if (pressure != lastPressure || PublishAlways)
        {
          String topic = String(mqttDeviceTopic) + "/pressure";
-          mqttPressurePub = mqtt->publish(topic.c_str(), 0, true, String(Pressure, PressureDecimals).c_str());
+          mqttPressurePub = mqtt->publish(topic.c_str(), 0, true, String(pressure, PressureDecimals).c_str());
        }

-        lastPressure = Pressure;
+        lastPressure = pressure;
      }
    }
  }
--- a/usermods/Temperature/readme.md
+++ b/usermods/Temperature/readme.md
@ -39,7 +39,7 @@ default_envs = d1_mini
 ...
 [common]
 ...
-lib_deps_external =
+lib_deps =
  ...
  #For use SSD1306 OLED display uncomment following
  U8g2@~2.27.3
--- a/usermods/VL53L0X_gestures/readme.md
+++ b/usermods/VL53L0X_gestures/readme.md
@ -0,0 +1,35 @@
+# Description
+
+That usermod implements support of simple hand gestures with VL53L0X sensor: on/off and brightness correction.
+It can be useful for kitchen strips to avoid any touches.
+ - on/off - just swipe a hand below your sensor ("shortPressAction" is called and can be customized through WLED macros)
+ - brightness correction - keep your hand below sensor for 1 second to switch to "brightness" mode.
+                           Configure brightness by changing distance to the sensor (see parameters below for customization).
+                           "macroLongPress" is also called here.
+
+## Installation 
+
+1. Attach VL53L0X sensor to i2c pins according to default pins for your board.
+2. Add `-D USERMOD_VL53L0X_GESTURES` to your build flags at platformio.ini (plaformio_override.ini) for needed environment.
+In my case, for example: `build_flags = ${common.build_flags_esp8266} -D RLYPIN=12 -D USERMOD_VL53L0X_GESTURES`
+3. Add "pololu/VL53L0X" dependency below to `lib_deps` like this:
+```ini
+lib_deps = ${env.lib_deps}
+      pololu/VL53L0X @ ^1.3.0
+```
+
+My entire `platformio_override.ini` for example (for nodemcu board):
+```ini
+[platformio]
+default_envs = nodemcu
+
+[env:nodemcu]
+board = nodemcu
+platform = ${common.platform_wled_default}
+platform_packages = ${common.platform_packages}
+board_build.ldscript = ${common.ldscript_4m1m}
+build_unflags = ${common.build_unflags}
+build_flags = ${common.build_flags_esp8266} -D RLYPIN=12 -D USERMOD_VL53L0X_GESTURES
+lib_deps = ${env.lib_deps}
+  pololu/VL53L0X @ ^1.3.0
+```
--- a/usermods/VL53L0X_gestures/usermod_vl53l0x_gestures.h
+++ b/usermods/VL53L0X_gestures/usermod_vl53l0x_gestures.h
@ -0,0 +1,121 @@
+/*
+ * That usermod implements support of simple hand gestures with VL53L0X sensor: on/off and brightness correction.
+ * It can be useful for kitchen strips to avoid any touches.
+ * - on/off - just swipe a hand below your sensor ("shortPressAction" is called and can be customized through WLED macros)
+ * - brightness correction - keep your hand below sensor for 1 second to switch to "brightness" mode.
+ *                           Configure brightness by changing distance to the sensor (see parameters below for customization).
+ *                           "macroLongPress" is also called here.
+ *
+ * Enabling this mod usermod:
+ * 1. Attach VL53L0X sensor to i2c pins according to default pins for your board.
+ * 2. Add "-D USERMOD_VL53L0X_GESTURES" to your build flags at platformio.ini (plaformio_override.ini) for needed environment.
+ * In my case, for example: build_flags = ${common.build_flags_esp8266} -D RLYPIN=12 -D USERMOD_VL53L0X_GESTURES
+ * 3. Add "pololu/VL53L0X" dependency to lib_deps like this:
+ * lib_deps = ${env.lib_deps}
+ *     pololu/VL53L0X @ ^1.3.0
+ */
+#pragma once
+
+#include "wled.h"
+
+#include <Wire.h>
+#include <VL53L0X.h>
+
+#ifndef VL53L0X_MAX_RANGE_MM
+#define VL53L0X_MAX_RANGE_MM 230 // max height in millimiters to react for motions
+#endif
+
+#ifndef VL53L0X_MIN_RANGE_OFFSET
+#define VL53L0X_MIN_RANGE_OFFSET 60 // minimal range in millimiters that sensor can detect. Used in long motions to correct brightnes calculation.
+#endif
+
+#ifndef VL53L0X_DELAY_MS
+#define VL53L0X_DELAY_MS 100 // how often to get data from sensor 
+#endif
+
+#ifndef VL53L0X_LONG_MOTION_DELAY_MS
+#define VL53L0X_LONG_MOTION_DELAY_MS 1000 // how often to get data from sensor 
+#endif
+
+class UsermodVL53L0XGestures : public Usermod {
+  private:
+    //Private class members. You can declare variables and functions only accessible to your usermod here
+    unsigned long lastTime = 0;
+    VL53L0X sensor;
+
+    bool wasMotionBefore = false;
+    bool isLongMotion = false;
+    unsigned long motionStartTime = 0;
+    
+  public:
+
+    void setup() {
+      Wire.begin();
+
+      sensor.setTimeout(150);
+      if (!sensor.init())
+      {
+        DEBUG_PRINTLN(F("Failed to detect and initialize VL53L0X sensor!"));
+      } else {
+        sensor.setMeasurementTimingBudget(20000); // set high speed mode
+      }
+    }
+
+
+    void loop() {
+      if (millis() - lastTime > VL53L0X_DELAY_MS)
+      {
+        lastTime = millis();
+
+        int range = sensor.readRangeSingleMillimeters();
+        DEBUG_PRINTF(F("range: %d, brightness: %d"), range, bri);
+
+        if (range < VL53L0X_MAX_RANGE_MM)
+        {
+          if (!wasMotionBefore)
+          {
+            motionStartTime = millis();
+            DEBUG_PRINTF(F("motionStartTime: %d"), motionStartTime);
+          }
+          wasMotionBefore = true;
+
+          if (millis() - motionStartTime > VL53L0X_LONG_MOTION_DELAY_MS) //long motion
+          {
+            DEBUG_PRINTF(F("long motion: %d"), motionStartTime);
+            if (!isLongMotion)
+            {
+              if (macroLongPress)
+              {
+                applyMacro(macroLongPress);
+              }
+              isLongMotion = true;
+            }
+
+            // set brightness according to range
+            bri = (VL53L0X_MAX_RANGE_MM - max(range, VL53L0X_MIN_RANGE_OFFSET)) * 255 / (VL53L0X_MAX_RANGE_MM - VL53L0X_MIN_RANGE_OFFSET);
+            DEBUG_PRINTF(F("new brightness: %d"), bri);
+            colorUpdated(1);
+          }
+        } else if (wasMotionBefore) { //released
+          long dur = millis() - motionStartTime;
+
+          if (!isLongMotion)
+          { //short press
+            DEBUG_PRINTF(F("shortPressAction..."));
+            shortPressAction();
+          }
+          wasMotionBefore = false;
+          isLongMotion = false;
+        }
+      }
+    }
+
+    /*
+     * getId() allows you to optionally give your V2 usermod an unique ID (please define it in const.h!).
+     * This could be used in the future for the system to determine whether your usermod is installed.
+     */
+    uint16_t getId()
+    {
+      return USERMOD_ID_VL53L0X;
+    }
+};
--- a/usermods/usermod_v2_rotary_encoder_ui/platformio_override.ini.sample
+++ b/usermods/usermod_v2_rotary_encoder_ui/platformio_override.ini.sample
@ -4,7 +4,7 @@ default_envs = d1_mini

 [env:esp32dev]
 board = esp32dev
-platform = espressif32@3.1.1
+platform = espressif32@3.2
 build_unflags = ${common.build_unflags}
 build_flags =
    ${common.build_flags_esp32} 
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@ -418,28 +418,45 @@ uint16_t WS2812FX::mode_theater_chase_rainbow(void) {
 /*
 * Running lights effect with smooth sine transition base.
 */
-uint16_t WS2812FX::running_base(bool saw) {
+uint16_t WS2812FX::running_base(bool saw, bool dual=false) {
  uint8_t x_scale = SEGMENT.intensity >> 2;
  uint32_t counter = (now * SEGMENT.speed) >> 9;

  for(uint16_t i = 0; i < SEGLEN; i++) {
-    uint8_t s = 0;
-    uint8_t a = i*x_scale - counter;
+    uint16_t a = i*x_scale - counter;
    if (saw) {
+      a &= 0xFF;
      if (a < 16)
      {
        a = 192 + a*8;
      } else {
        a = map(a,16,255,64,192);
      }
+      a = 255 - a;
    }
-    s = sin8(a);
-    setPixelColor(i, color_blend(color_from_palette(i, true, PALETTE_SOLID_WRAP, 0), SEGCOLOR(1), s));
+    uint8_t s = dual ? sin_gap(a) : sin8(a);
+    uint32_t ca = color_blend(SEGCOLOR(1), color_from_palette(i, true, PALETTE_SOLID_WRAP, 0), s);
+    if (dual) {
+      uint16_t b = (SEGLEN-1-i)*x_scale - counter;
+      uint8_t t = sin_gap(b);
+      uint32_t cb = color_blend(SEGCOLOR(1), color_from_palette(i, true, PALETTE_SOLID_WRAP, 2), t);
+      ca = color_blend(ca, cb, 127);
+    }
+    setPixelColor(i, ca);
  }
  return FRAMETIME;
 }


+/*
+ * Running lights in opposite directions.
+ * Idea: Make the gap width controllable with a third slider in the future
+ */
+uint16_t WS2812FX::mode_running_dual(void) {
+  return running_base(false, true);
+}
+
+
 /*
 * Running lights effect with smooth sine transition.
 */
@ -1306,14 +1323,6 @@ uint16_t WS2812FX::tricolor_chase(uint32_t color1, uint32_t color2) {
 }


-/*
- * Alternating white/red/black pixels running. PLACEHOLDER
- */
-uint16_t WS2812FX::mode_circus_combustus(void) {
-  return tricolor_chase(RED, WHITE);
-}
-
-
 /*
 * Tricolor chase mode
 */
@ -3074,8 +3083,9 @@ uint16_t WS2812FX::mode_drip(void)
        if (drops[j].pos < 0) drops[j].pos = 0;
        drops[j].vel += gravity;           // gravity is negative

-        for (uint8_t i=1;i<7-drops[j].colIndex;i++) { // some minor math so we don't expand bouncing droplets
-          setPixelColor(constrain(uint16_t(drops[j].pos)+i,0,SEGLEN-1),color_blend(BLACK,SEGCOLOR(0),drops[j].col/i)); //spread pixel with fade while falling
+        for (uint16_t i=1;i<7-drops[j].colIndex;i++) { // some minor math so we don't expand bouncing droplets
+          uint16_t pos = constrain(uint16_t(drops[j].pos) +i, 0, SEGLEN-1); //this is BAD, returns a pos >= SEGLEN occasionally
+          setPixelColor(pos,color_blend(BLACK,SEGCOLOR(0),drops[j].col/i)); //spread pixel with fade while falling
        }

        if (drops[j].colIndex > 2) {       // during bounce, some water is on the floor
--- a/wled00/FX.h
+++ b/wled00/FX.h
@ -166,7 +166,7 @@
 #define FX_MODE_POLICE_ALL              49
 #define FX_MODE_TWO_DOTS                50
 #define FX_MODE_TWO_AREAS               51
-#define FX_MODE_CIRCUS_COMBUSTUS        52
+#define FX_MODE_RUNNING_DUAL            52
 #define FX_MODE_HALLOWEEN               53
 #define FX_MODE_TRICOLOR_CHASE          54
 #define FX_MODE_TRICOLOR_WIPE           55
@ -504,7 +504,7 @@ class WS2812FX {
      _mode[FX_MODE_POLICE_ALL]              = &WS2812FX::mode_police_all;
      _mode[FX_MODE_TWO_DOTS]                = &WS2812FX::mode_two_dots;
      _mode[FX_MODE_TWO_AREAS]               = &WS2812FX::mode_two_areas;
-      _mode[FX_MODE_CIRCUS_COMBUSTUS]        = &WS2812FX::mode_circus_combustus;
+      _mode[FX_MODE_RUNNING_DUAL]            = &WS2812FX::mode_running_dual;
      _mode[FX_MODE_HALLOWEEN]               = &WS2812FX::mode_halloween;
      _mode[FX_MODE_TRICOLOR_CHASE]          = &WS2812FX::mode_tricolor_chase;
      _mode[FX_MODE_TRICOLOR_WIPE]           = &WS2812FX::mode_tricolor_wipe;
@ -633,6 +633,7 @@ class WS2812FX {
      getMainSegmentId(void),
      gamma8(uint8_t),
      gamma8_cal(uint8_t, float),
+      sin_gap(uint16_t),
      get_random_wheel_index(uint8_t);

    int8_t
@ -720,7 +721,7 @@ class WS2812FX {
      mode_police_all(void),
      mode_two_dots(void),
      mode_two_areas(void),
-      mode_circus_combustus(void),
+      mode_running_dual(void),
      mode_bicolor_chase(void),
      mode_tricolor_chase(void),
      mode_tricolor_wipe(void),
@ -818,7 +819,7 @@ class WS2812FX {
      color_wipe(bool, bool),
      dynamic(bool),
      scan(bool),
-      running_base(bool),
+      running_base(bool,bool),
      larson_scanner(bool),
      sinelon_base(bool,bool),
      dissolve(uint32_t),
@ -872,7 +873,7 @@ const char JSON_mode_names[] PROGMEM = R"=====([
 "Sparkle","Sparkle Dark","Sparkle+","Strobe","Strobe Rainbow","Strobe Mega","Blink Rainbow","Android","Chase","Chase Random",
 "Chase Rainbow","Chase Flash","Chase Flash Rnd","Rainbow Runner","Colorful","Traffic Light","Sweep Random","Running 2","Aurora","Stream",
 "Scanner","Lighthouse","Fireworks","Rain","Tetrix","Fire Flicker","Gradient","Loading","Police","Police All",
-"Two Dots","Two Areas","Circus","Halloween","Tri Chase","Tri Wipe","Tri Fade","Lightning","ICU","Multi Comet",
+"Two Dots","Two Areas","Running Dual","Halloween","Tri Chase","Tri Wipe","Tri Fade","Lightning","ICU","Multi Comet",
 "Scanner Dual","Stream 2","Oscillate","Pride 2015","Juggle","Palette","Fire 2012","Colorwaves","Bpm","Fill Noise",
 "Noise 1","Noise 2","Noise 3","Noise 4","Colortwinkles","Lake","Meteor","Meteor Smooth","Railway","Ripple",
 "Twinklefox","Twinklecat","Halloween Eyes","Solid Pattern","Solid Pattern Tri","Spots","Spots Fade","Glitter","Candle","Fireworks Starburst",
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@ -207,7 +207,7 @@ void WS2812FX::setPixelColor(uint16_t i, byte r, byte g, byte b, byte w)

    for (uint16_t j = 0; j < SEGMENT.grouping; j++) {
      uint16_t indexSet = realIndex + (IS_REVERSE ? -j : j);
-      if (indexSet >= SEGMENT.start && indexSet < SEGMENT.stop) { // watch for group out of bounds condition
+      if (indexSet >= SEGMENT.start && indexSet < SEGMENT.stop) {
        if (IS_MIRROR) { //set the corresponding mirrored pixel
          uint16_t indexMir = SEGMENT.stop + SEGMENT.start - indexSet - 1;
          if (indexMir < customMappingSize) indexMir = customMappingTable[indexMir];
@ -765,6 +765,12 @@ uint16_t WS2812FX::triwave16(uint16_t in)
  return 0xFFFF - (in - 0x8000)*2;
 }

+uint8_t WS2812FX::sin_gap(uint16_t in) {
+  if (in & 0x100) return 0;
+  //if (in > 255) return 0;
+  return sin8(in + 192); //correct phase shift of sine so that it starts and stops at 0
+}
+
 /*
 * Generates a tristate square wave w/ attac & decay 
 * @param x input value 0-255
--- a/wled00/button.cpp
+++ b/wled00/button.cpp
@ -4,6 +4,8 @@
 * Physical IO
 */

+#define WLED_DEBOUNCE_THRESHOLD 50 //only consider button input of at least 50ms as valid (debouncing)
+
 void shortPressAction()
 {
  if (!macroButton)
@ -25,10 +27,42 @@ bool isButtonPressed()
 }


+void handleSwitch()
+{
+  if (buttonPressedBefore != isButtonPressed()) {
+    buttonPressedTime = millis();
+    buttonPressedBefore = !buttonPressedBefore;
+  }
+
+  if (buttonLongPressed == buttonPressedBefore) return;
+    
+  if (millis() - buttonPressedTime > WLED_DEBOUNCE_THRESHOLD) { //fire edge event only after 50ms without change (debounce)
+    if (buttonPressedBefore) { //LOW, falling edge, switch closed
+      if (macroButton) applyPreset(macroButton);
+      else { //turn on
+        if (!bri) {toggleOnOff(); colorUpdated(NOTIFIER_CALL_MODE_BUTTON);}
+      } 
+    } else { //HIGH, rising edge, switch opened
+      if (macroLongPress) applyPreset(macroLongPress);
+      else { //turn off
+        if (bri) {toggleOnOff(); colorUpdated(NOTIFIER_CALL_MODE_BUTTON);}
+      } 
+    }
+    buttonLongPressed = buttonPressedBefore; //save the last "long term" switch state
+  }
+}
+
+
 void handleButton()
 {
-  if (btnPin<0 || !buttonEnabled) return;
+  if (btnPin<0 || buttonType < BTN_TYPE_PUSH) return;

+
+  if (buttonType == BTN_TYPE_SWITCH) { //button is not momentary, but switch. This is only suitable on pins whose on-boot state does not matter (NO gpio0)
+    handleSwitch(); return;
+  }
+
+  //momentary button logic
  if (isButtonPressed()) //pressed
  {
    if (!buttonPressedBefore) buttonPressedTime = millis();
@ -48,7 +82,7 @@ void handleButton()
  else if (!isButtonPressed() && buttonPressedBefore) //released
  {
    long dur = millis() - buttonPressedTime;
-    if (dur < 50) {buttonPressedBefore = false; return;} //too short "press", debounce
+    if (dur < WLED_DEBOUNCE_THRESHOLD) {buttonPressedBefore = false; return;} //too short "press", debounce
    bool doublePress = buttonWaitTime;
    buttonWaitTime = 0;

--- a/wled00/cfg.cpp
+++ b/wled00/cfg.cpp
@ -141,9 +141,9 @@ void deserializeConfig() {
  if (hw_led["rev"]) busses.getBus(0)->reversed = true; //set 0.11 global reversed setting for first bus

  JsonObject hw_btn_ins_0 = hw[F("btn")][F("ins")][0];
-  CJSON(buttonEnabled, hw_btn_ins_0["type"]);
+  CJSON(buttonType, hw_btn_ins_0["type"]);
  int hw_btn_pin = hw_btn_ins_0["pin"][0];
-  if (hw_btn_pin>=0 && pinManager.allocatePin(hw_btn_pin,false)) {
+  if (pinManager.allocatePin(hw_btn_pin,false)) {
    btnPin = hw_btn_pin;
    pinMode(btnPin, INPUT_PULLUP);
  } else {
@ -159,7 +159,7 @@ void deserializeConfig() {

  #ifndef WLED_DISABLE_INFRARED
  int hw_ir_pin = hw["ir"]["pin"] | -1; // 4
-  if (hw_ir_pin >=0 && pinManager.allocatePin(hw_ir_pin,false)) {
+  if (pinManager.allocatePin(hw_ir_pin,false)) {
    irPin = hw_ir_pin;
  } else {
    irPin = -1;
@ -484,7 +484,7 @@ void serializeConfig() {

  // button BTNPIN
  JsonObject hw_btn_ins_0 = hw_btn_ins.createNestedObject();
-  hw_btn_ins_0["type"] = (buttonEnabled) ? BTN_TYPE_PUSH : BTN_TYPE_NONE;
+  hw_btn_ins_0["type"] = buttonType;

  JsonArray hw_btn_ins_0_pin = hw_btn_ins_0.createNestedArray("pin");
  hw_btn_ins_0_pin.add(btnPin);
--- a/wled00/const.h
+++ b/wled00/const.h
@ -34,6 +34,7 @@
 #define USERMOD_ID_AUTO_SAVE      9            //Usermod "usermod_v2_auto_save.h"
 #define USERMOD_ID_DHT           10            //Usermod "usermod_dht.h"
 #define USERMOD_ID_MODE_SORT     11            //Usermod "usermod_v2_mode_sort.h"
+#define USERMOD_ID_VL53L0X       12            //Usermod "usermod_vl53l0x_gestures.h"

 //Access point behavior
 #define AP_BEHAVIOR_BOOT_NO_CONN  0            //Open AP when no connection after boot
@ -136,7 +137,7 @@
 #define BTN_TYPE_RESERVED         1
 #define BTN_TYPE_PUSH             2
 #define BTN_TYPE_PUSH_ACT_HIGH    3 //not implemented
-#define BTN_TYPE_SWITCH           4 //not implemented
+#define BTN_TYPE_SWITCH           4
 #define BTN_TYPE_SWITCH_ACT_HIGH  5 //not implemented

 //Ethernet board types
--- a/wled00/data/index.js
+++ b/wled00/data/index.js
@ -150,12 +150,12 @@ function loadBg(iUrl)
 	if (iUrl == "") {
 		var today = new Date();
 		var hol = [
-			[0,11,24,5,"https://aircoookie.github.io/xmas.png"], // christmas
+			[0,11,24,4,"https://aircoookie.github.io/xmas.png"], // christmas
 			[0,2,17,1,"https://images.alphacoders.com/491/491123.jpg"], // st. Patrick's day
-			[2022,3,16,3,"https://aircoookie.github.io/easter.png"],
-			[2023,3,8,3,"https://aircoookie.github.io/easter.png"],
-			[2024,2,30,3,"https://aircoookie.github.io/easter.png"]
-		]
+			[2022,3,17,2,"https://aircoookie.github.io/easter.png"],
+			[2023,3,9,2,"https://aircoookie.github.io/easter.png"],
+			[2024,2,31,2,"https://aircoookie.github.io/easter.png"]
+		];
 		for (var i=0; i<hol.length; i++) {
 			var yr = hol[i][0]==0 ? today.getFullYear() : hol[i][0];
 			var hs = new Date(yr,hol[i][1],hol[i][2]);
--- a/wled00/data/settings_sync.htm
+++ b/wled00/data/settings_sync.htm
@ -18,7 +18,12 @@ function GetV(){var d=document;}
 </div>
 <h2>Sync setup</h2>
 <h3>Button setup</h3>
-On/Off button enabled: <input type="checkbox" name="BT"><br>
+Button type:
+<select name=BT>
+  <option value=0>Disabled</option>
+  <option value=2>Pushbutton</option>
+  <option value=4>Switch</option>
+</select><br>
 Infrared remote:
 <select name=IR>
 <option value=0>Disabled</option>
--- a/wled00/data/settings_um.htm
+++ b/wled00/data/settings_um.htm
@ -27,7 +27,7 @@
        ldS();
    }
    function check(o,k) {
-        var n = o.name.substr(-6);
+        var n = o.name.replace("[]","").substr(-4);
        if (o.type=="number" && n.substr(0,4)=="_pin") {
            for (var i=0; i<pins.length; i++) {
                if (k==pinO[i]) continue;
--- a/wled00/html_settings.h
+++ b/wled00/html_settings.h
@ -221,8 +221,9 @@ var d=document;function H(){window.open("https://github.com/Aircoookie/WLED/wiki
 id="form_s" name="Sf" method="post"><div class="toprow"><div class="helpB">
 <button type="button" onclick="H()">?</button></div><button type="button" 
 onclick="B()">Back</button><button type="submit">Save</button><hr></div><h2>
-Sync setup</h2><h3>Button setup</h3>On/Off button enabled: <input 
-type="checkbox" name="BT"><br>Infrared remote: <select name="IR"><option 
+Sync setup</h2><h3>Button setup</h3>Button type: <select name="BT"><option 
+value="0">Disabled</option><option value="2">Pushbutton</option><option 
+value="4">Switch</option></select><br>Infrared remote: <select name="IR"><option
 value="0">Disabled</option><option value="1">24-key RGB</option><option 
 value="2">24-key with CT</option><option value="3">40-key blue</option><option 
 value="4">44-key RGB</option><option value="5">21-key RGB</option><option 
--- a/wled00/html_ui.h
+++ b/wled00/html_ui.h
--- a/wled00/ntp.cpp
+++ b/wled00/ntp.cpp
@ -1,5 +1,6 @@
 #include "src/dependencies/timezone/Timezone.h"
 #include "wled.h"
+#include "wled_math.h"

 /*
 * Acquires time from NTP server
@ -316,8 +317,8 @@ void checkTimers()
 // get sunrise (or sunset) time (in minutes) for a given day at a given geo location
 int getSunriseUTC(int year, int month, int day, float lat, float lon, bool sunset=false) {
  //1. first calculate the day of the year
-  float N1 = floor(275 * month / 9);
-  float N2 = floor((month + 9) / 12);
+  float N1 = 275 * month / 9;
+  float N2 = (month + 9) / 12;
  float N3 = (1 + floor((year - 4 * floor(year / 4) + 2) / 3));
  float N = N1 - (N2 * N3) + day - 30;

@ -329,10 +330,10 @@ int getSunriseUTC(int year, int month, int day, float lat, float lon, bool sunse
  float M = (0.9856 * t) - 3.289;

  //4. calculate the Sun's true longitude
-  float L = fmod(M + (1.916 * sin(DEG_TO_RAD*M)) + (0.020 * sin(2*DEG_TO_RAD*M)) + 282.634, 360.0);
+  float L = fmod(M + (1.916 * sin_t(DEG_TO_RAD*M)) + (0.020 * sin_t(2*DEG_TO_RAD*M)) + 282.634, 360.0);

  //5a. calculate the Sun's right ascension      
-  float RA = fmod(RAD_TO_DEG*atan(0.91764 * tan(DEG_TO_RAD*L)), 360.0);
+  float RA = fmod(RAD_TO_DEG*atan_t(0.91764 * tan_t(DEG_TO_RAD*L)), 360.0);

  //5b. right ascension value needs to be in the same quadrant as L   
  float Lquadrant  = floor( L/90) * 90;
@ -343,16 +344,16 @@ int getSunriseUTC(int year, int month, int day, float lat, float lon, bool sunse
  RA /= 15.;

  //6. calculate the Sun's declination
-  float sinDec = 0.39782 * sin(DEG_TO_RAD*L);
-  float cosDec = cos(asin(sinDec));
+  float sinDec = 0.39782 * sin_t(DEG_TO_RAD*L);
+  float cosDec = cos_t(asin_t(sinDec));

  //7a. calculate the Sun's local hour angle
-  float cosH = (sin(DEG_TO_RAD*ZENITH) - (sinDec * sin(DEG_TO_RAD*lat))) / (cosDec * cos(DEG_TO_RAD*lat));
+  float cosH = (sin_t(DEG_TO_RAD*ZENITH) - (sinDec * sin_t(DEG_TO_RAD*lat))) / (cosDec * cos_t(DEG_TO_RAD*lat));
  if (cosH > 1 && !sunset) return 0;  // the sun never rises on this location (on the specified date)
  if (cosH < -1 && sunset) return 0;  // the sun never sets on this location (on the specified date)

  //7b. finish calculating H and convert into hours
-  float H = sunset ? RAD_TO_DEG*acos(cosH) : 360 - RAD_TO_DEG*acos(cosH);
+  float H = sunset ? RAD_TO_DEG*acos_t(cosH) : 360 - RAD_TO_DEG*acos_t(cosH);
  H /= 15.;

  //8. calculate local mean time of rising/setting      
--- a/wled00/set.cpp
+++ b/wled00/set.cpp
@ -197,7 +197,7 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
  //SYNC
  if (subPage == 4)
  {
-    buttonEnabled = request->hasArg(F("BT"));
+    buttonType = request->arg(F("BT")).toInt();
    irEnabled = request->arg(F("IR")).toInt();
    int t = request->arg(F("UP")).toInt();
    if (t > 0) udpPort = t;
--- a/wled00/usermods_list.cpp
+++ b/wled00/usermods_list.cpp
@ -45,6 +45,11 @@
 #include "../usermods/DHT/usermod_dht.h"
 #endif

+#ifdef USERMOD_VL53L0X_GESTURES
+#include <Wire.h> //it's needed here to correctly resolve dependencies
+#include "../usermods/VL53L0X_gestures/usermod_vl53l0x_gestures.h"
+#endif
+
 void registerUsermods()
 {
 /*
@ -87,4 +92,8 @@ void registerUsermods()
  #ifdef USERMOD_DHT
  usermods.add(new UsermodDHT());
  #endif
+
+  #ifdef USERMOD_VL53L0X_GESTURES
+  usermods.add(new UsermodVL53L0XGestures());
+  #endif
 }
--- a/wled00/wled.cpp
+++ b/wled00/wled.cpp
@ -239,7 +239,7 @@ void WLED::loop()
    lastMqttReconnectAttempt = 0;
  }
  if (millis() - lastMqttReconnectAttempt > 30000) {
-    lastMqttReconnectAttempt = millis();  // don't do it in initMqtt() since MQTT may be disabled
+    lastMqttReconnectAttempt = millis();
    initMqtt();
    yield();
    // refresh WLED nodes list
@ -441,7 +441,8 @@ void WLED::beginStrip()
  if (rlyPin>=0) digitalWrite(rlyPin, (bri ? rlyMde : !rlyMde));

  // disable button if it is "pressed" unintentionally
-  if (btnPin>=0 && isButtonPressed()) buttonEnabled = false;
+  if (btnPin>=0 && buttonType == BTN_TYPE_PUSH && isButtonPressed())
+    buttonType = BTN_TYPE_NONE;
 }

 void WLED::initAP(bool resetAP)
--- a/wled00/wled.h
+++ b/wled00/wled.h
@ -8,7 +8,7 @@
 */

 // version code in format yymmddb (b = daily build)
-#define VERSION 2104121
+#define VERSION 2104141

 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG
@ -182,12 +182,12 @@ WLED_GLOBAL char otaPass[33] _INIT(DEFAULT_OTA_PASS);
 // Hardware CONFIG (only changeble HERE, not at runtime)
 // LED strip pin, button pin and IR pin changeable in NpbWrapper.h!
 #ifndef BTNPIN
-WLED_GLOBAL int8_t btnPin _INIT(-1);
+WLED_GLOBAL int8_t btnPin _INIT(0);
 #else
 WLED_GLOBAL int8_t btnPin _INIT(BTNPIN);
 #endif
 #ifndef RLYPIN
-WLED_GLOBAL int8_t rlyPin _INIT(-1);
+WLED_GLOBAL int8_t rlyPin _INIT(12);
 #else
 WLED_GLOBAL int8_t rlyPin _INIT(RLYPIN);
 #endif
@ -198,7 +198,7 @@ WLED_GLOBAL bool rlyMde _INIT(true);
 WLED_GLOBAL bool rlyMde _INIT(RLYMDE);
 #endif
 #ifndef IRPIN
-WLED_GLOBAL int8_t irPin _INIT(-1);
+WLED_GLOBAL int8_t irPin _INIT(4);
 #else
 WLED_GLOBAL int8_t irPin _INIT(IRPIN);
 #endif
@ -253,7 +253,7 @@ WLED_GLOBAL NodesMap Nodes;
 WLED_GLOBAL bool nodeListEnabled _INIT(true);
 WLED_GLOBAL bool nodeBroadcastEnabled _INIT(true);

-WLED_GLOBAL bool buttonEnabled  _INIT(true);
+WLED_GLOBAL byte buttonType     _INIT(BTN_TYPE_PUSH);
 WLED_GLOBAL byte irEnabled      _INIT(0);     // Infrared receiver

 WLED_GLOBAL uint16_t udpPort    _INIT(21324); // WLED notifier default port
--- a/wled00/wled_eeprom.cpp
+++ b/wled00/wled_eeprom.cpp
@ -93,7 +93,7 @@ void loadSettingsFromEEPROM()

  notifyButton = EEPROM.read(230);
  notifyTwice = EEPROM.read(231);
-  buttonEnabled = EEPROM.read(232);
+  buttonType = EEPROM.read(232) ? BTN_TYPE_PUSH : BTN_TYPE_NONE;

  staticIP[0] = EEPROM.read(234);
  staticIP[1] = EEPROM.read(235);
--- a/wled00/wled_math.h
+++ b/wled00/wled_math.h
@ -0,0 +1,71 @@
+#ifndef WLED_MATH_H
+#define WLED_MATH_H
+
+/*
+ * Contains some trigonometric functions.
+ * The ANSI C equivalents are likely faster, but using any sin/cos/tan function incurs a memory penalty of 460 bytes on ESP8266, likely for lookup tables.
+ * This implementation has no extra static memory usage.
+ * 
+ * Source of the cos_t() function: https://web.eecs.utk.edu/~azh/blog/cosine.html (cos_taylor_literal_6terms)
+ */
+
+#include <Arduino.h> //PI constant
+
+#define modd(x, y) ((x) - (int)((x) / (y)) * (y))
+
+double cos_t(double x)
+{
+  x = modd(x, TWO_PI);
+  char sign = 1;
+  if (x > PI)
+  {
+      x -= PI;
+      sign = -1;
+  }
+  double xx = x * x;
+
+  return sign * (1 - ((xx) / (2)) + ((xx * xx) / (24)) - ((xx * xx * xx) / (720)) + ((xx * xx * xx * xx) / (40320)) - ((xx * xx * xx * xx * xx) / (3628800)) + ((xx * xx * xx * xx * xx * xx) / (479001600)));
+}
+
+double sin_t(double x) {
+  return cos_t(HALF_PI - x);
+}
+
+double tan_t(double x) {
+  double c = cos_t(x);
+  if (c==0.0) return 0;
+  return sin_t(x) / c;
+}
+
+//https://stackoverflow.com/questions/3380628
+// Absolute error <= 6.7e-5
+float acos_t(float x) {
+  float negate = float(x < 0);
+  x = std::abs(x);
+  float ret = -0.0187293;
+  ret = ret * x;
+  ret = ret + 0.0742610;
+  ret = ret * x;
+  ret = ret - 0.2121144;
+  ret = ret * x;
+  ret = ret + HALF_PI;
+  ret = ret * sqrt(1.0-x);
+  ret = ret - 2 * negate * ret;
+  return negate * PI + ret;
+}
+
+float asin_t(float x) {
+  return HALF_PI - acos_t(x);
+}
+
+//https://stackoverflow.com/a/42542593
+#define A 0.0776509570923569
+#define B -0.287434475393028
+#define C ((HALF_PI/2) - A - B)
+
+double atan_t(double x) {
+  double xx = x * x;
+  return ((A*xx + B)*xx + C)*x;
+}
+
+#endif
--- a/wled00/xml.cpp
+++ b/wled00/xml.cpp
@ -394,7 +394,7 @@ void getSettingsJS(byte subPage, char* dest)

  if (subPage == 4)
  {
-    sappend('c',SET_F("BT"),buttonEnabled);
+    sappend('v',SET_F("BT"),buttonType);
    sappend('v',SET_F("IR"),irEnabled);
    sappend('v',SET_F("UP"),udpPort);
    sappend('v',SET_F("U2"),udpPort2);