diff --git a/common.mk b/common.mk
index afeaa0e..1d17564 100644
--- a/common.mk
+++ b/common.mk
@@ -56,7 +56,7 @@ OBJCOPY = $(CROSS)objcopy
COMPONENTS ?= FreeRTOS lwip
# libraries to link, mainly blobs provided by the esp-iot-rtos SDK
-LIBS ?= gcc json main net80211 phy pp ssl wpa hal
+LIBS ?= gcc main net80211 phy pp ssl wpa hal
CFLAGS = -Wall -Werror -Wl,-EL -nostdlib -mlongcalls -mtext-section-literals -std=gnu99
LDFLAGS = -nostdlib -Wl,--no-check-sections -Wl,-L$(ROOT)lib -u call_user_start -Wl,-static -Wl,-Map=build/${TARGET}.map
diff --git a/include/json/cJSON.h b/include/json/cJSON.h
deleted file mode 100644
index 992c48a..0000000
--- a/include/json/cJSON.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- Copyright (c) 2009 Dave Gamble
-
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
-*/
-
-#ifndef cJSON__h
-#define cJSON__h
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* cJSON Types: */
-#define cJSON_False 0
-#define cJSON_True 1
-#define cJSON_NULL 2
-#define cJSON_Number 3
-#define cJSON_String 4
-#define cJSON_Array 5
-#define cJSON_Object 6
-
-#define cJSON_IsReference 256
-
-/* The cJSON structure: */
-typedef struct cJSON {
- struct cJSON *next, *prev; /* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
- struct cJSON *child; /* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
-
- int type; /* The type of the item, as above. */
-
- char *valuestring; /* The item's string, if type==cJSON_String */
- int valueint; /* The item's number, if type==cJSON_Number */
- double valuedouble; /* The item's number, if type==cJSON_Number */
-
- char *string; /* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
-} cJSON;
-
-/* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
-cJSON *cJSON_Parse(const char *value);
-/* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
-char *cJSON_Print(cJSON *item);
-/* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
-char *cJSON_PrintUnformatted(cJSON *item);
-/* Delete a cJSON entity and all subentities. */
-void cJSON_Delete(cJSON *c);
-
-/* Returns the number of items in an array (or object). */
-int cJSON_GetArraySize(cJSON *array);
-/* Retrieve item number "item" from array "array". Returns NULL if unsuccessful. */
-cJSON *cJSON_GetArrayItem(cJSON *array, int item);
-/* Get item "string" from object. Case insensitive. */
-cJSON *cJSON_GetObjectItem(cJSON *object, const char *string);
-
-/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
-const char *cJSON_GetErrorPtr(void);
-
-/* These calls create a cJSON item of the appropriate type. */
-cJSON *cJSON_CreateNull(void);
-cJSON *cJSON_CreateTrue(void);
-cJSON *cJSON_CreateFalse(void);
-cJSON *cJSON_CreateBool(int b);
-cJSON *cJSON_CreateNumber(double num);
-cJSON *cJSON_CreateString(const char *string);
-cJSON *cJSON_CreateArray(void);
-cJSON *cJSON_CreateObject(void);
-
-/* These utilities create an Array of count items. */
-cJSON *cJSON_CreateIntArray(const int *numbers, int count);
-cJSON *cJSON_CreateFloatArray(const float *numbers, int count);
-cJSON *cJSON_CreateDoubleArray(const double *numbers, int count);
-cJSON *cJSON_CreateStringArray(const char **strings, int count);
-
-/* Append item to the specified array/object. */
-void cJSON_AddItemToArray(cJSON *array, cJSON *item);
-void cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
-/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
-void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
-void cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
-
-/* Remove/Detatch items from Arrays/Objects. */
-cJSON *cJSON_DetachItemFromArray(cJSON *array, int which);
-void cJSON_DeleteItemFromArray(cJSON *array, int which);
-cJSON *cJSON_DetachItemFromObject(cJSON *object, const char *string);
-void cJSON_DeleteItemFromObject(cJSON *object, const char *string);
-
-/* Update array items. */
-void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
-void cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem);
-
-/* Duplicate a cJSON item */
-cJSON *cJSON_Duplicate(cJSON *item, int recurse);
-/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
-need to be released. With recurse!=0, it will duplicate any children connected to the item.
-The item->next and ->prev pointers are always zero on return from Duplicate. */
-
-/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
-cJSON *cJSON_ParseWithOpts(const char *value, const char **return_parse_end, int require_null_terminated);
-
-void cJSON_Minify(char *json);
-
-/* Macros for creating things quickly. */
-#define cJSON_AddNullToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateNull())
-#define cJSON_AddTrueToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateTrue())
-#define cJSON_AddFalseToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
-#define cJSON_AddBoolToObject(object,name,b) cJSON_AddItemToObject(object, name, cJSON_CreateBool(b))
-#define cJSON_AddNumberToObject(object,name,n) cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
-#define cJSON_AddStringToObject(object,name,s) cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
-
-/* When assigning an integer value, it needs to be propagated to valuedouble too. */
-#define cJSON_SetIntValue(object,val) ((object)?(object)->valueint=(object)->valuedouble=(val):(val))
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/lib/libjson.a b/lib/libjson.a
deleted file mode 100644
index 179119d..0000000
Binary files a/lib/libjson.a and /dev/null differ