Initial version for testing

src/tempsensor.cpp

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+/*
+MIT License
+
+Copyright (c) 2021 Magnus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+#include "tempsensor.h"
+#include "helper.h"
+#include "config.h"
+#include <onewire.h>
+#include <DallasTemperature.h>
+#include <Wire.h>
+
+//
+// Conversion between C and F
+//
+float convertCtoF( float t ) { 
+  return (t * 1.8 ) + 32.0; 
+}
+
+OneWire myOneWire(D6);
+DallasTemperature mySensors(&myOneWire);
+TempSensor myTempSensor;
+
+#define TEMPERATURE_PRECISION 9
+
+//
+// Setup temp sensors
+//
+void TempSensor::setup() {
+
+#if defined( SIMULATE_TEMP )
+  hasSensors = true;
+  return;
+#endif
+
+  if( mySensors.getDeviceCount() )
+    return;
+
+#if LOG_LEVEL==6
+  Log.verbose(F("TSEN: Looking for temp sensors." CR));
+#endif
+  mySensors.begin();
+
+  if( mySensors.getDeviceCount() ) {
+    Log.notice(F("TSEN: Found %d sensors." CR), mySensors.getDeviceCount());
+    mySensors.setResolution(TEMPERATURE_PRECISION);
+  }
+
+  float t = myConfig.getTempSensorAdj();
+
+  // Set the temp sensor adjustment values
+  if( myConfig.isTempC() ) {
+    tempSensorAdjF = t * 1.8;     // Convert the adjustment value to C
+    tempSensorAdjC = t;
+  } else {
+    tempSensorAdjF = t;
+    tempSensorAdjC = t * 0.556;   // Convert the adjustent value to F
+  }
+
+#if LOG_LEVEL==6
+  Log.verbose(F("TSEN: Adjustment values for temp sensor %F C, %F F." CR), tempSensorAdjC, tempSensorAdjF );
+#endif
+}
+
+//
+// Retrieving value from sensor
+//
+float TempSensor::getValue() {
+  float c = 0;
+
+#if defined( SIMULATE_TEMP )
+  return 21;
+#endif
+
+  // Read the sensors
+  mySensors.requestTemperatures();
+
+  if( mySensors.getDeviceCount() >= 1) {
+    c = mySensors.getTempCByIndex(0);
+
+#if LOG_LEVEL==6
+    Log.verbose(F("TSEN: Reciving temp value for sensor %F C." CR), c);
+#endif
+    hasSensor = true;
+  }
+
+  return c;
+}
+
+// EOF