clear list on autodetect

lib/MyESP/MyESP.cpp

@@ -945,7 +945,7 @@ void MyESP::showSystemStats() {
     myDebug_P(PSTR(" [MEM] Firmware size: %d"), ESP.getSketchSize());
     myDebug_P(PSTR(" [MEM] Max OTA size: %d"), (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000);
     myDebug_P(PSTR(" [MEM] OTA Reserved: %d"), 4 * SPI_FLASH_SEC_SIZE);
-    myDebug_P(PSTR(" [MEM] Free Heap: %d"), ESP.getFreeHeap());
+    //myDebug_P(PSTR(" [MEM] Free Heap: %d"), ESP.getFreeHeap());
     myDebug_P(PSTR(""));
 }
 

src/ems-esp.cpp

@@ -964,6 +964,7 @@ void startDeviceScan() {
     regularUpdatesTimer.detach();
     publishSensorValuesTimer.detach();
     scanDevices_count = 1; // starts at 1
+    ems_clearDeviceList(); // empty the current list
     ems_setLogging(EMS_SYS_LOGGING_NONE);
     myDebug_P(PSTR("Starting a deep EMS device scan. This can take up to 2 minutes. Please wait..."));
     scanThermostat.attach_ms(SCANDEVICES_TIME, do_scanDevices);

src/ems.cpp

@@ -1529,6 +1529,13 @@ void _process_RCTime(_EMS_RxTelegram * EMS_RxTelegram) {
     EMS_Thermostat.year   = _toByte(0);
 }
 
+/*
+ * Clear devices list
+ */
+void ems_clearDeviceList() {
+    Devices.clear();
+}
+
 /*
  * add an EMS device to our list of detected devices
  */

src/ems.h

@@ -314,6 +314,7 @@ void ems_setWarmWaterModeComfort(uint8_t comfort);
 bool ems_checkEMSBUSAlive();
 void ems_setModels();
 void ems_setTxDisabled(bool b);
+void ems_clearDeviceList();
 
 void             ems_getThermostatValues();
 void             ems_getBoilerValues();