Changed Accessory Limit from 41 to 150 and added Memory Warning

Low Memory Watermark is compared to DEFAULT_LOW_MEM_THRESHOLD (currently set at 80,000 bytes) after HAP initialization but before WIFI connection.  If Low Memory Watermark is below DEFAULT_LOW_MEM_THRESHOLD, a WARNING is issued.

Note: memory is based on heap with MALLOC_CAP_DEFAULT capabilities

src/HAP.h

@@ -85,7 +85,7 @@ struct HAPClient {
 
   static const int MAX_HTTP=8096;                     // max number of bytes allowed for HTTP message
   static const int MAX_CONTROLLERS=16;                // maximum number of paired controllers (HAP requires at least 16)
-  static const int MAX_ACCESSORIES=41;                // maximum number of allowed Acessories (HAP limit=150, but not enough memory in ESP32 to run that many)
+  static const int MAX_ACCESSORIES=150;               // maximum number of allowed Accessories (HAP limit=150)
   
   static TLV<kTLVType,11> tlv8;                       // TLV8 structure (HAP Section 14.1) with space for 11 TLV records of type kTLVType (HAP Table 5-6)
   static nvs_handle hapNVS;                           // handle for non-volatile-storage of HAP data

src/HomeSpan.cpp

@@ -179,6 +179,10 @@ 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(!strlen(network.wifiData.ssid)){
       LOG0("*** WIFI CREDENTIALS DATA NOT FOUND.  ");
       if(autoStartAPEnabled){
@@ -838,13 +842,7 @@ void Span::processSerialCommand(const char *c){
     break;
 
     case 'm': {
-      multi_heap_info_t heapInfo;
+      LOG0("Free Heap=%d bytes  (low=%d)\n",heap_caps_get_free_size(MALLOC_CAP_DEFAULT),heap_caps_get_minimum_free_size(MALLOC_CAP_DEFAULT));
-      heap_caps_get_info(&heapInfo,MALLOC_CAP_INTERNAL);
-      LOG0("Total Heap=%d  (low=%d)  ",heapInfo.total_free_bytes,heapInfo.minimum_free_bytes);
-      heap_caps_get_info(&heapInfo,MALLOC_CAP_DEFAULT);
-      LOG0("DRAM-Capable=%d   ",heapInfo.total_free_bytes);
-      heap_caps_get_info(&heapInfo,MALLOC_CAP_EXEC);
-      LOG0("IRAM-Capable=%d\n",heapInfo.total_free_bytes);
     }
     break;       
 

src/Settings.h

@@ -84,6 +84,8 @@
 
 #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
+
 /////////////////////////////////////////////////////
 //              OTA PARTITION INFO                 //
 

src/src.ino

@@ -74,7 +74,7 @@ void setup() {
 //  homeSpan.enableOTA();
 
   homeSpan.setWifiCallback(wifiCB);
-  homeSpan.setWifiCallbackAll(wifiCB_ALL).setVerboseWifiReconnect(false);
+  homeSpan.setWifiCallbackAll(wifiCB_ALL).setVerboseWifiReconnect(true);
   
 
   new SpanUserCommand('D', " - disconnect WiFi", [](const char *buf){WiFi.disconnect();});
@@ -84,7 +84,20 @@ void setup() {
   new SpanAccessory();   
     new Service::AccessoryInformation(); 
       new Characteristic::Identify();
-    new LED_Service(13);  
+//    new LED_Service(13);
+
+  for(int i=0;i<50;i++){
+    new SpanAccessory();                            
+      new Service::AccessoryInformation();                
+        new Characteristic::Identify();                        
+      new Service::LightBulb();                      
+        new Characteristic::On(true);
+      new Service::Fan();                             
+        new Characteristic::Active();
+        new Characteristic::RotationDirection();
+        (new Characteristic::RotationSpeed(50))->setRange(0,100,25);
+  }
+
 }
 
 //////////////////////////////////////