diff --git a/components/base_nodemcu/linit.c b/components/base_nodemcu/linit.c
index da14b73b..2b751f6a 100644
--- a/components/base_nodemcu/linit.c
+++ b/components/base_nodemcu/linit.c
@@ -15,7 +15,7 @@
 #include "lauxlib.h"
 #include "luaconf.h"
 #include "module.h"
-
+#include "sdkconfig.h"
 
 BUILTIN_LIB_INIT( BASE,      "",                 luaopen_base);
 BUILTIN_LIB_INIT( LOADLIB,   LUA_LOADLIBNAME,    luaopen_package);
@@ -24,19 +24,19 @@ BUILTIN_LIB_INIT( LOADLIB,   LUA_LOADLIBNAME,    luaopen_package);
 BUILTIN_LIB_INIT( IO,        LUA_IOLIBNAME,      luaopen_io);
 #endif
 
-#if defined (LUA_USE_BUILTIN_STRING)
+#if defined (CONFIG_LUA_BUILTIN_STRING)
 extern const luaR_entry strlib[];
 BUILTIN_LIB_INIT( STRING,    LUA_STRLIBNAME,     luaopen_string);
 BUILTIN_LIB(      STRING,    LUA_STRLIBNAME,     strlib);
 #endif
 
-#if defined(LUA_USE_BUILTIN_TABLE)
+#if defined(CONFIG_LUA_BUILTIN_TABLE)
 extern const luaR_entry tab_funcs[];
 BUILTIN_LIB_INIT( TABLE,     LUA_TABLIBNAME,     luaopen_table);
 BUILTIN_LIB(      TABLE,     LUA_TABLIBNAME,     tab_funcs);
 #endif
 
-#if defined(LUA_USE_BUILTIN_DEBUG) || defined(LUA_USE_BUILTIN_DEBUG_MINIMAL)
+#if defined(CONFIG_LUA_BUILTIN_DEBUG)
 extern const luaR_entry dblib[];
 BUILTIN_LIB_INIT( DBG,       LUA_DBLIBNAME,      luaopen_debug);
 BUILTIN_LIB(      DBG,       LUA_DBLIBNAME,      dblib);
@@ -47,12 +47,12 @@ extern const luaR_entry syslib[];
 BUILTIN_LIB(      OS,        LUA_OSLIBNAME,     syslib);
 #endif
 
-#if defined(LUA_USE_BUILTIN_COROUTINE)
+#if defined(CONFIG_LUA_BUILTIN_COROUTINE)
 extern const luaR_entry co_funcs[];
 BUILTIN_LIB(      CO,        LUA_COLIBNAME,     co_funcs);
 #endif
 
-#if defined(LUA_USE_BUILTIN_MATH)
+#if defined(CONFIG_LUA_BUILTIN_MATH)
 extern const luaR_entry math_map[];
 BUILTIN_LIB(      MATH,      LUA_MATHLIBNAME,   math_map);
 #endif
diff --git a/components/lua/Makefile.projbuild b/components/lua/Makefile.projbuild
index d2d4262d..bc42824a 100644
--- a/components/lua/Makefile.projbuild
+++ b/components/lua/Makefile.projbuild
@@ -4,4 +4,5 @@ CFLAGS+=\
 	-DLUA_OPTIMIZE_MEMORY=2 \
 	-DMIN_OPT_LEVEL=2 \
 	-DLUA_OPTIMIZE_DEBUG=$(CONFIG_LUA_OPTIMIZE_DEBUG) \
+	-DLUA_USE_STDIO \
 
diff --git a/components/lua/lauxlib.c b/components/lua/lauxlib.c
index a22f69b7..b79f5c24 100644
--- a/components/lua/lauxlib.c
+++ b/components/lua/lauxlib.c
@@ -592,14 +592,14 @@ static const char *getF (lua_State *L, void *ud, size_t *size) {
     *size = 1;
     return "\n";
   }
-  if (c_feof(lf->f)) return NULL;
-  *size = c_fread(lf->buff, 1, sizeof(lf->buff), lf->f);
+  if (feof(lf->f)) return NULL;
+  *size = fread(lf->buff, 1, sizeof(lf->buff), lf->f);
   return (*size > 0) ? lf->buff : NULL;
 }
 
 
 static int errfile (lua_State *L, const char *what, int fnameindex) {
-  const char *serr = c_strerror(errno);
+  const char *serr = strerror(errno);
   const char *filename = lua_tostring(L, fnameindex) + 1;
   lua_pushfstring(L, "cannot %s %s: %s", what, filename, serr);
   lua_remove(L, fnameindex);
@@ -615,30 +615,30 @@ LUALIB_API int luaL_loadfile (lua_State *L, const char *filename) {
   lf.extraline = 0;
   if (filename == NULL) {
     lua_pushliteral(L, "=stdin");
-    lf.f = c_stdin;
+    lf.f = stdin;
   }
   else {
     lua_pushfstring(L, "@%s", filename);
-    lf.f = c_fopen(filename, "r");
+    lf.f = fopen(filename, "r");
     if (lf.f == NULL) return errfile(L, "open", fnameindex);
   }
-  c = c_getc(lf.f);
+  c = getc(lf.f);
   if (c == '#') {  /* Unix exec. file? */
     lf.extraline = 1;
-    while ((c = c_getc(lf.f)) != EOF && c != '\n') ;  /* skip first line */
-    if (c == '\n') c = c_getc(lf.f);
+    while ((c = getc(lf.f)) != EOF && c != '\n') ;  /* skip first line */
+    if (c == '\n') c = getc(lf.f);
   }
   if (c == LUA_SIGNATURE[0] && filename) {  /* binary file? */
-    lf.f = c_freopen(filename, "rb", lf.f);  /* reopen in binary mode */
+    lf.f = freopen(filename, "rb", lf.f);  /* reopen in binary mode */
     if (lf.f == NULL) return errfile(L, "reopen", fnameindex);
     /* skip eventual `#!...' */
-   while ((c = c_getc(lf.f)) != EOF && c != LUA_SIGNATURE[0]) ;
+   while ((c = getc(lf.f)) != EOF && c != LUA_SIGNATURE[0]) ;
     lf.extraline = 0;
   }
-  c_ungetc(c, lf.f);
+  ungetc(c, lf.f);
   status = lua_load(L, getF, &lf, lua_tostring(L, -1));
-  readstatus = c_ferror(lf.f);
-  if (filename) c_fclose(lf.f);  /* close file (even in case of errors) */
+  readstatus = ferror(lf.f);
+  if (filename) fclose(lf.f);  /* close file (even in case of errors) */
   if (readstatus) {
     lua_settop(L, fnameindex);  /* ignore results from `lua_load' */
     return errfile(L, "read", fnameindex);
@@ -813,7 +813,7 @@ LUALIB_API void luaL_assertfail(const char *file, int line, const char *message)
 static int panic (lua_State *L) {
   (void)L;  /* to avoid warnings */
 #if defined(LUA_USE_STDIO)
-  c_fprintf(c_stderr, "PANIC: unprotected error in call to Lua API (%s)\n",
+  fprintf(stderr, "PANIC: unprotected error in call to Lua API (%s)\n",
                    lua_tostring(L, -1));
 #else
   luai_writestringerror("PANIC: unprotected error in call to Lua API (%s)\n",
diff --git a/components/lua/lbaselib.c b/components/lua/lbaselib.c
index e76296c2..878079a8 100644
--- a/components/lua/lbaselib.c
+++ b/components/lua/lbaselib.c
@@ -41,8 +41,8 @@ static int luaB_print (lua_State *L) {
       return luaL_error(L, LUA_QL("tostring") " must return a string to "
                            LUA_QL("print"));
 #if defined(LUA_USE_STDIO)
-    if (i>1) c_fputs("\t", c_stdout);
-    c_fputs(s, c_stdout);
+    if (i>1) fputs("\t", stdout);
+    fputs(s, stdout);
 #else
     if (i>1)  luai_writestring("\t", 1);
     luai_writestring(s, strlen(s));
@@ -50,7 +50,7 @@ static int luaB_print (lua_State *L) {
     lua_pop(L, 1);  /* pop result */
   }
 #if defined(LUA_USE_STDIO)
-  c_fputs("\n", c_stdout);
+  fputs("\n", stdout);
 #else
   luai_writeline();
 #endif
diff --git a/components/lua/ldblib.c b/components/lua/ldblib.c
index 529e8906..2abd8af8 100644
--- a/components/lua/ldblib.c
+++ b/components/lua/ldblib.c
@@ -25,7 +25,7 @@ static int db_getregistry (lua_State *L) {
   return 1;
 }
 
-#ifndef LUA_USE_BUILTIN_DEBUG_MINIMAL
+#ifndef CONFIG_LUA_USE_BUILTIN_DEBUG_MINIMAL
 
 static int db_getmetatable (lua_State *L) {
   luaL_checkany(L, 1);
@@ -85,7 +85,7 @@ static lua_State *getthread (lua_State *L, int *arg) {
     return L;
   }
 }
-#ifndef LUA_USE_BUILTIN_DEBUG_MINIMAL
+#ifndef CONFIG_LUA_USE_BUILTIN_DEBUG_MINIMAL
 
 static void treatstackoption (lua_State *L, lua_State *L1, const char *fname) {
   if (L == L1) {
@@ -305,8 +305,8 @@ static int db_debug (lua_State *L) {
   for (;;) {
     char buffer[LUA_MAXINPUT];
 #if defined(LUA_USE_STDIO)
-    c_fputs("lua_debug> ", c_stderr);
-    if (c_fgets(buffer, sizeof(buffer), c_stdin) == 0 ||
+    fputs("lua_debug> ", stderr);
+    if (fgets(buffer, sizeof(buffer), stdin) == 0 ||
 #else
 //    luai_writestringerror("%s", "lua_debug>");
     if (lua_readline(L, buffer, "lua_debug>") == 0 ||
@@ -316,8 +316,8 @@ static int db_debug (lua_State *L) {
     if (luaL_loadbuffer(L, buffer, strlen(buffer), "=(debug command)") ||
         lua_pcall(L, 0, 0, 0)) {
 #if defined(LUA_USE_STDIO)
-      c_fputs(lua_tostring(L, -1), c_stderr);
-      c_fputs("\n", c_stderr);
+      fputs(lua_tostring(L, -1), stderr);
+      fputs("\n", stderr);
 #else
       luai_writestringerror("%s\n", lua_tostring(L, -1));
 #endif
@@ -386,7 +386,7 @@ static int db_errorfb (lua_State *L) {
 #define MIN_OPT_LEVEL 1
 #include "lrodefs.h"
 const LUA_REG_TYPE dblib[] = {
-#ifndef LUA_USE_BUILTIN_DEBUG_MINIMAL
+#ifndef CONFIG_LUA_USE_BUILTIN_DEBUG_MINIMAL
   {LSTRKEY("debug"), LFUNCVAL(db_debug)},
   {LSTRKEY("getfenv"), LFUNCVAL(db_getfenv)},
   {LSTRKEY("gethook"), LFUNCVAL(db_gethook)},
@@ -394,7 +394,7 @@ const LUA_REG_TYPE dblib[] = {
   {LSTRKEY("getlocal"), LFUNCVAL(db_getlocal)},
 #endif
   {LSTRKEY("getregistry"), LFUNCVAL(db_getregistry)},
-#ifndef LUA_USE_BUILTIN_DEBUG_MINIMAL
+#ifndef CONFIG_LUA_USE_BUILTIN_DEBUG_MINIMAL
   {LSTRKEY("getmetatable"), LFUNCVAL(db_getmetatable)},
   {LSTRKEY("getupvalue"), LFUNCVAL(db_getupvalue)},
   {LSTRKEY("setfenv"), LFUNCVAL(db_setfenv)},
diff --git a/components/lua/lua.c b/components/lua/lua.c
index 5693e60d..b9916b67 100644
--- a/components/lua/lua.c
+++ b/components/lua/lua.c
@@ -48,7 +48,7 @@ static void laction (int i) {
 
 static void print_usage (void) {
 #if defined(LUA_USE_STDIO)
-  c_fprintf(c_stderr,
+  fprintf(stderr,
 #else
   luai_writestringerror(
 #endif
@@ -64,16 +64,16 @@ static void print_usage (void) {
   ,
   progname);
 #if defined(LUA_USE_STDIO)
-  c_fflush(c_stderr);
+  fflush(stderr);
 #endif
 }
 #endif
 
 static void l_message (const char *pname, const char *msg) {
 #if defined(LUA_USE_STDIO)
-  if (pname) c_fprintf(c_stderr, "%s: ", pname);
-  c_fprintf(c_stderr, "%s\n", msg);
-  c_fflush(c_stderr);
+  if (pname) fprintf(stderr, "%s: ", pname);
+  fprintf(stderr, "%s\n", msg);
+  fflush(stderr);
 #else
   if (pname) luai_writestringerror("%s: ", pname);
   luai_writestringerror("%s\n", msg);
@@ -260,8 +260,8 @@ static void dotty (lua_State *L) {
   lua_settop(L, 0);  /* clear stack */
   
 #if defined(LUA_USE_STDIO)
-  c_fputs("\n", c_stdout);
-  c_fflush(c_stdout);
+  fputs("\n", stdout);
+  fflush(stdout);
 #else
   luai_writeline();
 #endif
diff --git a/components/modules/Kconfig b/components/modules/Kconfig
index 411e086a..3bd7954e 100644
--- a/components/modules/Kconfig
+++ b/components/modules/Kconfig
@@ -1,5 +1,51 @@
 menu "NodeMCU modules"
 
+menu "Core Lua modules"
+
+config LUA_BUILTIN_STRING
+  bool "String module"
+  default "y"
+  help
+    Includes the string module (recommended).
+
+config LUA_BUILTIN_TABLE
+  bool "Table module"
+  default "y"
+  help
+    Includes the table module (recommended).
+
+config LUA_BUILTIN_COROUTINE
+  bool "Coroutine module"
+  default "y"
+  help
+    Includes the coroutine module (recommended).
+
+config LUA_BUILTIN_MATH
+  bool "Math module"
+  default "y"
+  help
+    Includes the math module (recommended).
+
+config LUA_BUILTIN_DEBUG
+  bool "Debug module"
+  default "n"
+  help
+    Includes the debug module.
+
+config LUA_BUILTIN_DEBUG_EXTENDED
+depends on LUA_BUILTIN_DEBUG
+  bool "Extended debug support
+  default "n"
+  help
+    Includes the full debug module, rather than just getregistry and traceback.
+
+config LUA_BUILTIN_DEBUG_MINIMAL
+depends on LUA_BUILTIN_DEBUG
+  bool
+  default !LUA_BUILTIN_DEBUG_EXTENDED
+
+endmenu
+
 config LUA_MODULE_NODE
   bool "Node module"
   default "y"