bugfix in particle collision binning

* Usermod Temperature: use full 12-bit precision

* Temperature Usermod: fix DS1822 and DS18B20 family code

* Add Dropdown to select 9 or 12 bit resolution

* Add 10 and 11 bit resolution, Correct rounding towards negativ inf

usermods/Temperature/Temperature.cpp

@@ -20,17 +20,19 @@ float UsermodTemperature::readDallas() {
     }
     #endif
     switch(sensorFound) {
-      case 0x10:  // DS18S20 has 9-bit precision
+      case 0x10:  // DS18S20 has 9-bit precision - 1-bit fraction part
         result = (data[1] << 8) | data[0];
         retVal = float(result) * 0.5f;
         break;
-      case 0x22:  // DS18B20
-      case 0x28:  // DS1822
+      case 0x22:  // DS1822
+      case 0x28:  // DS18B20
       case 0x3B:  // DS1825
       case 0x42:  // DS28EA00
-        result = (data[1]<<4) | (data[0]>>4);   // we only need whole part, we will add fraction when returning
-        if (data[1] & 0x80) result |= 0xF000;   // fix negative value
-        retVal = float(result) + ((data[0] & 0x08) ? 0.5f : 0.0f);
+        // 12-bit precision - 4-bit fraction part
+        result = (data[1] << 8) | data[0];
+        // Clear LSBs to match desired precision (9/10/11-bit) rounding towards negative infinity
+        result &= 0xFFFF << (3 - (resolution & 3));
+        retVal = float(result) * 0.0625f; // 2^(-4)
         break;
     }
   }
@@ -69,8 +71,8 @@ bool UsermodTemperature::findSensor() {
     if (oneWire->crc8(deviceAddress, 7) == deviceAddress[7]) {
       switch (deviceAddress[0]) {
         case 0x10:  // DS18S20
-        case 0x22:  // DS18B20
-        case 0x28:  // DS1822
+        case 0x22:  // DS1822
+        case 0x28:  // DS18B20
         case 0x3B:  // DS1825
         case 0x42:  // DS28EA00
           DEBUG_PRINTLN(F("Sensor found."));
@@ -277,6 +279,7 @@ void UsermodTemperature::addToConfig(JsonObject &root) {
   top[FPSTR(_parasite)] = parasite;
   top[FPSTR(_parasitePin)] = parasitePin;
   top[FPSTR(_domoticzIDX)] = idx;
+  top[FPSTR(_resolution)] = resolution;
   DEBUG_PRINTLN(F("Temperature config saved."));
 }
 
@@ -304,6 +307,7 @@ bool UsermodTemperature::readFromConfig(JsonObject &root) {
   parasite          = top[FPSTR(_parasite)] | parasite;
   parasitePin       = top[FPSTR(_parasitePin)] | parasitePin;
   idx               = top[FPSTR(_domoticzIDX)] | idx;
+  resolution        = top[FPSTR(_resolution)] | resolution;
 
   if (!initDone) {
     // first run: reading from cfg.json
@@ -324,7 +328,7 @@ bool UsermodTemperature::readFromConfig(JsonObject &root) {
     }
   }
   // use "return !top["newestParameter"].isNull();" when updating Usermod with new features
-  return !top[FPSTR(_domoticzIDX)].isNull();
+  return !top[FPSTR(_resolution)].isNull();
 }
 
 void UsermodTemperature::appendConfigData() {
@@ -332,6 +336,14 @@ void UsermodTemperature::appendConfigData() {
   oappend(F("',1,'<i>(if no Vcc connected)</i>');"));  // 0 is field type, 1 is actual field
   oappend(F("addInfo('")); oappend(String(FPSTR(_name)).c_str()); oappend(F(":")); oappend(String(FPSTR(_parasitePin)).c_str());
   oappend(F("',1,'<i>(for external MOSFET)</i>');"));  // 0 is field type, 1 is actual field
+  oappend(F("dd=addDD('")); oappend(String(FPSTR(_name)).c_str()); 
+    oappend(F("','")); oappend(String(FPSTR(_resolution)).c_str()); oappend(F("');"));
+  oappend(F("addO(dd,'0.5 °C (9-bit)',0);"));
+  oappend(F("addO(dd,'0.25°C (10-bit)',1);"));
+  oappend(F("addO(dd,'0.125°C (11-bit)',2);"));
+  oappend(F("addO(dd,'0.0625°C (12-bit)',3);"));
+  oappend(F("addInfo('")); oappend(String(FPSTR(_name)).c_str()); oappend(F(":")); oappend(String(FPSTR(_resolution)).c_str());
+  oappend(F("',1,'<i>(ignored on DS18S20)</i>');"));  // 0 is field type, 1 is actual field
 }
 
 float UsermodTemperature::getTemperature() {
@@ -351,6 +363,7 @@ const char UsermodTemperature::_readInterval[] PROGMEM = "read-interval-s";
 const char UsermodTemperature::_parasite[]     PROGMEM = "parasite-pwr";
 const char UsermodTemperature::_parasitePin[]  PROGMEM = "parasite-pwr-pin";
 const char UsermodTemperature::_domoticzIDX[]  PROGMEM = "domoticz-idx";
+const char UsermodTemperature::_resolution[]   PROGMEM = "resolution";
 const char UsermodTemperature::_sensor[]       PROGMEM = "sensor";
 const char UsermodTemperature::_temperature[]  PROGMEM = "temperature";
 const char UsermodTemperature::_Temperature[]  PROGMEM = "/temperature";

usermods/Temperature/UsermodTemperature.h

@@ -48,6 +48,7 @@ class UsermodTemperature : public Usermod {
 
     bool HApublished = false;
     int16_t idx = -1;   // Domoticz virtual sensor idx
+    uint8_t resolution = 0; // 9bits=0, 10bits=1, 11bits=2, 12bits=3
 
     // strings to reduce flash memory usage (used more than twice)
     static const char _name[];
@@ -56,6 +57,7 @@ class UsermodTemperature : public Usermod {
     static const char _parasite[];
     static const char _parasitePin[];
     static const char _domoticzIDX[];
+    static const char _resolution[];
     static const char _sensor[];
     static const char _temperature[];
     static const char _Temperature[];

wled00/FXparticleSystem.cpp

@@ -156,7 +156,7 @@ void ParticleSystem2D::setParticleSize(uint8_t size) {
     particleHardRadius = PS_P_MINHARDRADIUS + ((particlesize * 52) >> 6); // use 1 pixel + 80% of size for hard radius (slight overlap with boarders so they do not "float" and nicer stacking)
   }
   else if (particlesize == 0)
-    particleHardRadius = particleHardRadius >> 1; // single pixel particles have half the radius (i.e. 1/2 pixel)
+    particleHardRadius = PS_P_MINHARDRADIUS >> 1; // single pixel particles have half the radius (i.e. 1/2 pixel)
 }
 
 // enable/disable gravity, optionally, set the force (force=8 is default) can be -127 to +127, 0 is disable
@@ -595,7 +595,7 @@ void ParticleSystem2D::render() {
     if (fireIntesity) { // fire mode
       brightness = (uint32_t)particles[i].ttl * (3 + (fireIntesity >> 5)) + 5;
       brightness = min(brightness, (uint32_t)255);
-      baseRGB = ColorFromPaletteWLED(SEGPALETTE, brightness, 255, LINEARBLEND_NOWRAP);
+      baseRGB = ColorFromPaletteWLED(SEGPALETTE, brightness, 255, LINEARBLEND_NOWRAP); // map hue to brightness for fire effect
     }
     else {
       brightness = min((particles[i].ttl << 1), (int)255);
@@ -842,7 +842,7 @@ void ParticleSystem2D::handleCollisions() {
   for (uint32_t bin = 0; bin < numBins; bin++) {
     binParticleCount = 0; // reset for this bin
     int32_t binStart = bin * binWidth - overlap; // note: first bin will extend to negative, but that is ok as out of bounds particles are ignored
-    int32_t binEnd = binStart + binWidth + overlap; // note: last bin can be out of bounds, see above;
+    int32_t binEnd = binStart + binWidth + (overlap << 1); // add twice the overlap as start is start-overlap, note: last bin can be out of bounds, see above;
 
     // fill the binIndices array for this bin
     for (uint32_t i = 0; i < usedParticles; i++) {
@@ -879,7 +879,7 @@ void ParticleSystem2D::handleCollisions() {
           massratio1 = (mass2 << 8) / totalmass; // massratio 1 depends on mass of particle 2, i.e. if 2 is heavier -> higher velocity impact on 1
           massratio2 = (mass1 << 8) / totalmass;
         }
-        // note: using the same logic as in 1D is much slower though it would be more accurate but it is not really needed in 2D
+        // note: using the same logic as in 1D is much slower though it would be more accurate but it is not really needed in 2D: particles slipping through each other is much less visible
         int32_t dx = (particles[idx_j].x + particles[idx_j].vx) - (particles[idx_i].x + particles[idx_i].vx); // distance with lookahead
         if (dx * dx < collDistSq) { // check x direction, if close, check y direction (squaring is faster than abs() or dual compare)
           int32_t dy = (particles[idx_j].y + particles[idx_j].vy)  - (particles[idx_i].y + particles[idx_i].vy); // distance with lookahead
@@ -1247,7 +1247,7 @@ void ParticleSystem1D::setParticleSize(const uint8_t size) {
     particleHardRadius = PS_P_MINHARDRADIUS_1D + ((particlesize * 52) >> 6); // use 1 pixel + 80% of size for hard radius (slight overlap with boarders so they do not "float" and nicer stacking)
   }
   else if (particlesize == 0)
-    particleHardRadius = particleHardRadius >> 1; // single pixel particles have half the radius (i.e. 1/2 pixel)
+    particleHardRadius = PS_P_MINHARDRADIUS_1D >> 1; // single pixel particles have half the radius (i.e. 1/2 pixel)
 }
 
 // enable/disable gravity, optionally, set the force (force=8 is default) can be -127 to +127, 0 is disable
@@ -1632,7 +1632,7 @@ void ParticleSystem1D::handleCollisions() {
   for (uint32_t bin = 0; bin < numBins; bin++) {
     binParticleCount = 0; // reset for this bin
     int32_t binStart = bin * binWidth - overlap; // note: first bin will extend to negative, but that is ok as out of bounds particles are ignored
-    int32_t binEnd = binStart + binWidth + overlap; // note: last bin can be out of bounds, see above
+    int32_t binEnd = binStart + binWidth + (overlap << 1); // add twice the overlap as start is start-overlap, note: last bin can be out of bounds, see above
 
     // fill the binIndices array for this bin
     for (uint32_t i = 0; i < usedParticles; i++) {

wled00/set.cpp

@@ -615,10 +615,6 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
       aOtaEnabled = request->hasArg(F("AO"));
       #endif
       otaSameSubnet = request->hasArg(F("SU"));
-    } else if (otaLock) {
-      // If OTA is locked and password is incorrect, return error immediately
-      serveMessage(request, 401, F("Error"), F("Password incorrect"), 254);
-      return;
     }
   }