#67

html/config.htm

@@ -324,7 +324,7 @@
     <div class="accordion-item">
       <h2 class="accordion-header" id="headingGravity">
         <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseGravity" aria-expanded="false" aria-controls="collapseGravity">
-          <b>Gravity</b>
+          <b>Gravity Settings</b>
         </button>
       </h2>
       <div id="collapseGravity" class="accordion-collapse collapse" aria-labelledby="headingGravity" data-bs-parent="#accordion">
@@ -378,7 +378,7 @@
     <div class="accordion-item">
       <h2 class="accordion-header" id="headingHardware">
         <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseHardware" aria-expanded="false" aria-controls="collapseHardware">
-          <b>Hardware</b>
+          <b>Hardware Settings</b>
         </button>
       </h2>
       <div id="collapseHardware" class="accordion-collapse collapse" aria-labelledby="headingHardware" data-bs-parent="#accordion">
@@ -453,7 +453,7 @@
     <div class="accordion-item">
       <h2 class="accordion-header" id="headingAdvanced">
         <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseAdvanced" aria-expanded="false" aria-controls="collapseAdvanced">
-          <b>Advanced (use with caution)</b>
+          <b>Advanced Settings (use with caution)</b>
         </button>
       </h2>
       <div id="collapseAdvanced" class="accordion-collapse collapse" aria-labelledby="headingAdvanced" data-bs-parent="#accordion">
@@ -488,6 +488,16 @@
 
             <hr>
 
+            <div class="row mb-3">
+              <label for="tempsensor-resolution" class="col-sm-3 col-form-label">DS18B20 resolution (bits):</label>
+              <div class="col-sm-2">
+                <input disabled type="number" min="9" max="12" class="form-control" name="tempsensor-resolution" id="tempsensor-resolution" checked data-bs-toggle="tooltip" title="Resolution when reading the DS18B20 temperature sensor, higher resolution give better accuracy but takes longer"> 
+              </div>
+              <div class="col-sm-5">(9 - 12) - default 9 bits</div>
+            </div>
+
+            <hr>
+
             <div class="row mb-3">
               <label for="wifi-connect-timeout" class="col-sm-3 col-form-label">Wifi connect timeout (s):</label>
               <div class="col-sm-2">
@@ -749,6 +759,7 @@
       $("#int-http3").prop("disabled", b);
       $("#int-influx").prop("disabled", b);
       $("#int-mqtt").prop("disabled", b);
+      $("#tempsensor-resolution").prop("disabled", b);
     }
 
     // Get the advanced values from the API
@@ -766,6 +777,7 @@
         $("#formula-max-deviation").val(cfg["formula-max-deviation"]);
         $("#wifi-portal-timeout").val(cfg["wifi-portal-timeout"]);
         $("#wifi-connect-timeout").val(cfg["wifi-connect-timeout"]);
+        $("#tempsensor-resolution").val(cfg["tempsensor-resolution"]);
         $("#int-http1").val(cfg["int-http1"]);
         $("#int-http2").val(cfg["int-http2"]);
         $("#int-http3").val(cfg["int-http3"]);

src/config.cpp

@@ -390,6 +390,7 @@ bool AdvancedConfig::saveFile() {
   doc[PARAM_HW_PUSH_INTERVAL_HTTP3] = this->getPushIntervalHttp3();
   doc[PARAM_HW_PUSH_INTERVAL_INFLUX] = this->getPushIntervalInflux();
   doc[PARAM_HW_PUSH_INTERVAL_MQTT] = this->getPushIntervalMqtt();
+  doc[PARAM_HW_TEMPSENSOR_RESOLUTION] = this->getTempSensorResolution();  
 
 #if LOG_LEVEL == 6 && !defined(DISABLE_LOGGING)
   serializeJson(doc, Serial);
@@ -476,6 +477,8 @@ bool AdvancedConfig::loadFile() {
     this->setPushIntervalInflux(doc[PARAM_HW_PUSH_INTERVAL_INFLUX].as<int>());
   if (!doc[PARAM_HW_PUSH_INTERVAL_MQTT].isNull())
     this->setPushIntervalMqtt(doc[PARAM_HW_PUSH_INTERVAL_MQTT].as<int>());
+  if (!doc[PARAM_HW_TEMPSENSOR_RESOLUTION].isNull())
+    this->setTempSensorResolution(doc[PARAM_HW_TEMPSENSOR_RESOLUTION].as<int>());
 
   Log.notice(F("CFG : Configuration file " CFG_HW_FILENAME " loaded." CR));
   return true;

src/config.hpp

@@ -61,6 +61,7 @@ class AdvancedConfig {
   float _maxFormulaCreationDeviation = 1.6;
   float _defaultCalibrationTemp = 20.0;
   int _gyroSensorMovingThreashold = 500;
+  int _tempSensorResolution = 9;
   int _gyroReadCount = 50;
   int _gyroReadDelay = 3150;  // us, empirical, to hold sampling to 200 Hz
   int _pushTimeout = 10;      // seconds
@@ -84,6 +85,12 @@ class AdvancedConfig {
     _maxFormulaCreationDeviation = f;
   }
 
+  int getTempSensorResolution() { return _tempSensorResolution; }
+  void setTempSensorResolution(int t) { 
+    if (t>=9 && t<=12)
+      _tempSensorResolution = t; 
+  }
+
   float getDefaultCalibrationTemp() { return _defaultCalibrationTemp; }
   void SetDefaultCalibrationTemp(float t) { _defaultCalibrationTemp = t; }
 

src/resources.hpp

@@ -83,6 +83,7 @@ SOFTWARE.
 #define PARAM_HW_FORMULA_CALIBRATION_TEMP "formula-calibration-temp"
 #define PARAM_HW_WIFI_PORTAL_TIMEOUT "wifi-portal-timeout"
 #define PARAM_HW_WIFI_CONNECT_TIMEOUT "wifi-connect-timeout"
+#define PARAM_HW_TEMPSENSOR_RESOLUTION "tempsensor-resolution"
 #define PARAM_HW_PUSH_TIMEOUT "push-timeout"
 #define PARAM_HW_PUSH_INTERVAL_HTTP1 "int-http1"
 #define PARAM_HW_PUSH_INTERVAL_HTTP2 "int-http2"

src/tempsensor.cpp

@@ -32,7 +32,6 @@ SOFTWARE.
 
 OneWire myOneWire(PIN_DS);
 DallasTemperature mySensors(&myOneWire);
-#define TEMPERATURE_PRECISION 9
 
 TempSensor myTempSensor;
 
@@ -52,10 +51,10 @@ void TempSensor::setup() {
 
   if (mySensors.getDS18Count()) {
 #if !defined(TSEN_DISABLE_LOGGING)
-    Log.notice(F("TSEN: Found %d temperature sensor(s)." CR),
-               mySensors.getDS18Count());
+    Log.notice(F("TSEN: Found %d temperature sensor(s). Using %d resolution" CR),
+               mySensors.getDS18Count(), myAdvancedConfig.getTempSensorResolution());
 #endif
-    mySensors.setResolution(TEMPERATURE_PRECISION);
+    mySensors.setResolution(myAdvancedConfig.getTempSensorResolution());
   }
 
   // Set the temp sensor adjustment values

src/webserver.cpp

@@ -324,7 +324,7 @@ void WebServerHandler::webHandleStatus() {
   LOG_PERF_START("webserver-api-status");
   Log.notice(F("WEB : webServer callback for /api/status(get)." CR));
 
-  DynamicJsonDocument doc(300);
+  DynamicJsonDocument doc(512);
 
   double angle = 0;
 
@@ -683,6 +683,9 @@ void WebServerHandler::webHandleConfigAdvancedWrite() {
   if (_server->hasArg(PARAM_HW_PUSH_INTERVAL_MQTT))
     myAdvancedConfig.setPushIntervalMqtt(
         _server->arg(PARAM_HW_PUSH_INTERVAL_MQTT).toInt());
+  if (_server->hasArg(PARAM_HW_TEMPSENSOR_RESOLUTION))
+    myAdvancedConfig.setTempSensorResolution(
+        _server->arg(PARAM_HW_TEMPSENSOR_RESOLUTION).toInt());
 
   myAdvancedConfig.saveFile();
   _server->sendHeader("Location", "/config.htm#collapseAdvanced", true);
@@ -715,6 +718,8 @@ void WebServerHandler::webHandleConfigAdvancedRead() {
   doc[PARAM_HW_PUSH_INTERVAL_HTTP3] = myAdvancedConfig.getPushIntervalHttp3();
   doc[PARAM_HW_PUSH_INTERVAL_INFLUX] = myAdvancedConfig.getPushIntervalInflux();
   doc[PARAM_HW_PUSH_INTERVAL_MQTT] = myAdvancedConfig.getPushIntervalMqtt();
+  doc[PARAM_HW_TEMPSENSOR_RESOLUTION] =
+      myAdvancedConfig.getTempSensorResolution();
 
 #if LOG_LEVEL == 6 && !defined(WEB_DISABLE_LOGGING)
   serializeJson(doc, Serial);

test/adv.json

@@ -5,6 +5,7 @@
   "wifi-portal-timeout": 121,
   "wifi-connect-timeout": 21,
   "formula-calibration-temp": 21,
+  "tempsensor-resolution": 12,
   "push-timeout": 10,
   "int-http1": 1,
   "int-http2": 2,