diff --git a/src/HomeSpan.cpp b/src/HomeSpan.cpp
index 99cb3ef..8ac4089 100644
--- a/src/HomeSpan.cpp
+++ b/src/HomeSpan.cpp
@@ -185,9 +185,9 @@ void Span::pollTask() {
            
     HAPClient::init();                // read NVS and load HAP settings  
     
-    if(heap_caps_get_minimum_free_size(MALLOC_CAP_DEFAULT)<DEFAULT_LOW_MEM_THRESHOLD)
-      LOG0("\n**** WARNING!  Low Memory Watermark of %d bytes is less than Low Threshold of %d bytes.  Device *may* run out of memory.\n\n",
-          heap_caps_get_minimum_free_size(MALLOC_CAP_DEFAULT),DEFAULT_LOW_MEM_THRESHOLD);
+    if(heap_caps_get_minimum_free_size(MALLOC_CAP_INTERNAL)<DEFAULT_LOW_MEM_THRESHOLD)
+      LOG0("\n**** WARNING!  Low Internal RAM Watermark of %d bytes is less than Low Threshold of %d bytes.  Device *may* run out of memory.\n\n",
+          heap_caps_get_minimum_free_size(MALLOC_CAP_INTERNAL),DEFAULT_LOW_MEM_THRESHOLD);
 
     if(!strlen(network.wifiData.ssid)){
       LOG0("*** WIFI CREDENTIALS DATA NOT FOUND.  ");
diff --git a/src/HomeSpan.h b/src/HomeSpan.h
index df0c64a..84ace6e 100644
--- a/src/HomeSpan.h
+++ b/src/HomeSpan.h
@@ -427,8 +427,9 @@ class SpanAccessory{
   ~SpanAccessory();                                       // destructor
 
   public:
-  
-  SpanAccessory(uint32_t aid=0);                          // constructor
+
+  void *operator new(size_t size){return(HS_MALLOC(size));}     // override new operator to use PSRAM when available
+  SpanAccessory(uint32_t aid=0);                                // constructor
 };
 
 ///////////////////////////////
@@ -460,6 +461,7 @@ class SpanService{
 
   public:
   
+  void *operator new(size_t size){return(HS_MALLOC(size));}                       // override new operator to use PSRAM when available
   SpanService(const char *type, const char *hapName, boolean isCustom=false);     // constructor
   SpanService *setPrimary();                                                      // sets the Service Type to be primary and returns pointer to self
   SpanService *setHidden();                                                       // sets the Service Type to be hidden and returns pointer to self
@@ -656,6 +658,7 @@ class SpanCharacteristic{
 
   public:
 
+  void *operator new(size_t size){return(HS_MALLOC(size));}               // override new operator to use PSRAM when available
   SpanCharacteristic(HapChar *hapChar, boolean isCustom=false);           // constructor
 
   template <class T=int> T getVal(){
diff --git a/src/Settings.h b/src/Settings.h
index 9b6e30b..8d95cd6 100644
--- a/src/Settings.h
+++ b/src/Settings.h
@@ -84,7 +84,7 @@
 
 #define     DEFAULT_WEBLOG_URL        "status"            // change with optional fourth argument in homeSpan.enableWebLog()
 
-#define     DEFAULT_LOW_MEM_THRESHOLD     80000           // default low watermark memory threshold that triggers warning
+#define     DEFAULT_LOW_MEM_THRESHOLD     80000           // default low watermark memory (for internal RAM) threshold that triggers warning
 
 #define     DEFAULT_REBOOT_CALLBACK_TIME  5000            // default time (in milliseconds) to check for reboot callback
 
diff --git a/src/src.ino b/src/src.ino
index b5f25ca..1026520 100644
--- a/src/src.ino
+++ b/src/src.ino
@@ -38,22 +38,22 @@ void setup() {
 
   homeSpan.begin(Category::Lighting,"HomeSpan Max");
 
-  ps_new(SpanAccessory)();
-    ps_new(Service::AccessoryInformation)();  
-      ps_new(Characteristic::Identify)();
+   new SpanAccessory();
+    new Service::AccessoryInformation();  
+      new Characteristic::Identify();
 
-  for(int i=0;i<149;i++){
-    ps_new(SpanAccessory)();
-      ps_new(Service::AccessoryInformation)();  
-        ps_new(Characteristic::Identify)();
+  for(int i=0;i<50;i++){
+    new SpanAccessory();
+      new Service::AccessoryInformation();
+        new Characteristic::Identify();
         char c[30];
         sprintf(c,"Light-%d",i);
-        ps_new(Characteristic::Name)(c);
-      ps_new(Service::LightBulb)();
-        ps_new(Characteristic::On)(0,true);
-        ps_new(Characteristic::Brightness)(50,true);
-        ps_new(Characteristic::Hue)(120,true);
-        ps_new(Characteristic::Saturation)(100,true);
+        new Characteristic::Name(c);
+      new Service::LightBulb();
+        new Characteristic::On(0,false);
+        new Characteristic::Brightness(50,false);
+        new Characteristic::Hue(120,false);
+        new Characteristic::Saturation(100,false);
   }
 
 }