Allow overload limit of Accessories

docs/Reference.md

@@ -270,6 +270,7 @@ Creating an instance of this **class** adds a new HAP Accessory to the HomeSpan
 
   * every HomeSpan sketch requires at least one Accessory
   * a sketch can contain a maximum of 41 Accessories per sketch (if exceeded, a runtime error will the thrown and the sketch will halt)
+  * extending the limit of 41 is possible by using the #define HOMESPAN_MAX_ACCESSORIES <LIMIT;>, but this is only recommended for experienced developers, as a higher limit may exceed the maximum available memory.
   * there are no associated methods
   * the argument *aid* is optional.
   

src/HAP.h

@@ -27,14 +27,18 @@
  
 #pragma once
 
-#include <WiFi.h>
+#ifndef HOMESPAN_MAX_ACCESSORIES
+#define HOMESPAN_MAX_ACCESSORIES 41 // maximum number of allowed Acessories (HAP limit=150, but not enough memory in ESP32 to run that many)
+#endif
 
+#include <WiFi.h>
 #include "HomeSpan.h"
 #include "TLV.h"
 #include "HAPConstants.h"
 #include "HKDF.h"
 #include "SRP.h"
 
+
 /////////////////////////////////////////////////
 // NONCE Structure (HAP used last 64 of 96 bits)
 
@@ -75,7 +79,7 @@ struct HAPClient {
 
   static const int MAX_HTTP=8095;                     // max number of bytes in HTTP message buffer
   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=HOMESPAN_MAX_ACCESSORIES;  // maximum number of allowed Acessories (HAP limit=150, but not enough memory in ESP32 to run that many)
   
   static TLV<kTLVType,10> tlv8;                       // TLV8 structure (HAP Section 14.1) with space for 10 TLV records of type kTLVType (HAP Table 5-6)
   static nvs_handle hapNVS;                           // handle for non-volatile-storage of HAP data