diff --git a/.gitignore b/.gitignore
index b16930c8..868aeb06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,4 +26,4 @@ emsesp
 /interface/node_modules
 /interface/.eslintcache
 src/pid.cpp
-src/pid.cpp
+src/pid.h
diff --git a/platformio.ini b/platformio.ini
index 929857bf..da0cc711 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -70,10 +70,10 @@ board_build.f_cpu = 160000000L ; 160MHz
 ; eagle.flash.4m2m.ld = 1019 KB sketch, 2024 KB SPIFFS. 4KB EEPROM, 4KB RFCAL, 12KB WIFI stack, 1028 KB OTA & buffer
 ; board_build.ldscript = eagle.flash.4m2m.ld
 build_flags = ${common.build_flags} ${common.debug_flags}
-    -D PIO_FRAMEWORK_ARDUINO_MMU_CUSTOM
-    -D MMU_IRAM_SIZE=0xC000
-    -D MMU_ICACHE_SIZE=0x4000
-    -D MMU_IRAM_HEAP
+;    -D PIO_FRAMEWORK_ARDUINO_MMU_CUSTOM
+;    -D MMU_IRAM_SIZE=0xC000
+;    -D MMU_ICACHE_SIZE=0x4000
+;    -D MMU_IRAM_HEAP
     -D FLASH_MAP_SUPPORT=1
 lib_ignore =
     AsyncTCP
diff --git a/src/emsesp.h b/src/emsesp.h
index 3c93ca90..e5305b16 100644
--- a/src/emsesp.h
+++ b/src/emsesp.h
@@ -52,14 +52,21 @@
 
 #define WATCH_ID_NONE 0 // no watch id set
 
-#define EMSESP_MAX_JSON_SIZE_HA_CONFIG min(384,ESP.getMaxFreeBlockSize() - 512)   // for small HA config payloads, using StaticJsonDocument
+#define EMSESP_MAX_JSON_SIZE_HA_CONFIG 384   // for small HA config payloads, using StaticJsonDocument
+#define EMSESP_MAX_JSON_SIZE_SMALL 256       // for smaller json docs, using StaticJsonDocument
+#define EMSESP_MAX_JSON_SIZE_MEDIUM 768      // for medium json docs from ems devices, using StaticJsonDocument
+#define EMSESP_MAX_JSON_SIZE_LARGE 1924      // for large json docs from ems devices, like boiler or thermostat data, using StaticJsonDocument
+#define EMSESP_MAX_JSON_SIZE_MEDIUM_DYN 1024 // for large json docs, using DynamicJsonDocument
+#define EMSESP_MAX_JSON_SIZE_LARGE_DYN 2048  // for very large json docs, using DynamicJsonDocument
+#define EMSESP_MAX_JSON_SIZE_MAX_DYN 4096    // for very very large json docs, using DynamicJsonDocument
+/* #define EMSESP_MAX_JSON_SIZE_HA_CONFIG min(384,ESP.getMaxFreeBlockSize() - 512)   // for small HA config payloads, using StaticJsonDocument
 #define EMSESP_MAX_JSON_SIZE_SMALL min(256,ESP.getMaxFreeBlockSize() - 512)       // for smaller json docs, using StaticJsonDocument
 #define EMSESP_MAX_JSON_SIZE_MEDIUM min(768,ESP.getMaxFreeBlockSize() - 512)      // for medium json docs from ems devices, using StaticJsonDocument
 #define EMSESP_MAX_JSON_SIZE_LARGE min(1024,ESP.getMaxFreeBlockSize() - 512)      // for large json docs from ems devices, like boiler or thermostat data, using StaticJsonDocument
 #define EMSESP_MAX_JSON_SIZE_MEDIUM_DYN min(1024,ESP.getMaxFreeBlockSize() - 512) // for large json docs, using DynamicJsonDocument
 #define EMSESP_MAX_JSON_SIZE_LARGE_DYN min(2048,ESP.getMaxFreeBlockSize() - 512)  // for very large json docs, using DynamicJsonDocument
 #define EMSESP_MAX_JSON_SIZE_MAX_DYN min(4096,ESP.getMaxFreeBlockSize() - 512)    // for very very large json docs, using DynamicJsonDocument
-
+ */
 namespace emsesp {
 
 class Shower; // forward declaration for compiler
diff --git a/src/version.h b/src/version.h
index 184ece38..77aab5c1 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,2 +1,2 @@
-#define EMSESP_APP_VERSION "2.3.1b0"
+#define EMSESP_APP_VERSION "2.3.1b1"
 #define EMSESP_PLATFORM "ESP8266"