diff --git a/components/esp32/include/esp_ssc.h b/components/esp32/include/esp_ssc.h
deleted file mode 100644
index 02893ff410..0000000000
--- a/components/esp32/include/esp_ssc.h
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef __ESP_SSC_H__
-#define __ESP_SSC_H__
-
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define CMD_T_ASYNC   0x01
-#define CMD_T_SYNC    0x02
-
-typedef struct cmd_s {
-    char *cmd_str;
-    uint8_t flag;
-    uint8_t id;
-    void (* cmd_func)(void);
-    void (* cmd_callback)(void *arg);
-} ssc_cmd_t;
-
-#define MAX_LINE_N  127
-
-typedef enum {
-    SSC_BR_9600   = 9600,
-    SSC_BR_19200  = 19200,
-    SSC_BR_38400  = 38400,
-    SSC_BR_57600  = 57600,
-    SSC_BR_74880  = 74880,
-    SSC_BR_115200 = 115200,
-    SSC_BR_230400 = 230400,
-    SSC_BR_460800 = 460800,
-    SSC_BR_921600 = 921600
-} SscBaudRate;
-
-/** \defgroup SSC_APIs SSC APIs
-  * @brief SSC APIs
-  *
-  * SSC means simple serial command.
-  * SSC APIs allows users to define their own command, users can refer to spiffs_test/test_main.c.
-  *
-  */
-
-/** @addtogroup SSC_APIs
-  * @{
-  */
-
-/**
-  * @brief  Initial the ssc function.
-  *
-  * @attention param is no use, just compatible with ESP8266, default bandrate is 115200
-  *
-  * @param  SscBaudRate bandrate : baud rate
-  *
-  * @return null
-  */
-void ssc_attach(SscBaudRate bandrate);
-
-/**
-  * @brief   Get the length of the simple serial command.
-  *
-  * @param   null
-  *
-  * @return  length of the command.
-  */
-int ssc_param_len(void);
-
-/**
-  * @brief   Get the simple serial command string.
-  *
-  * @param   null
-  *
-  * @return  the command.
-  */
-char *ssc_param_str(void);
-
-/**
-  * @brief   Parse the simple serial command (ssc).
-  *
-  * @param   char *pLine  : [input] the ssc string
-  * @param   char *argv[] : [output] parameters of the ssc
-  *
-  * @return  the number of parameters.
-  */
-int ssc_parse_param(char *pLine, char *argv[]);
-
-/**
-  * @brief  Register the user-defined simple serial command (ssc) set.
-  *
-  * @param  ssc_cmd_t *cmdset   : the ssc set
-  * @param  uint8 cmdnum        : number of commands
-  * @param  void (* help)(void) : callback of user-guide
-  *
-  * @return  null
-  */
-void ssc_register(ssc_cmd_t *cmdset, uint8_t cmdnum, void (* help)(void));
-
-/**
-  * @}
-  */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __ESP_SSC_H__ */
diff --git a/components/esp32s2/include/esp_ssc.h b/components/esp32s2/include/esp_ssc.h
deleted file mode 100644
index 02893ff410..0000000000
--- a/components/esp32s2/include/esp_ssc.h
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef __ESP_SSC_H__
-#define __ESP_SSC_H__
-
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define CMD_T_ASYNC   0x01
-#define CMD_T_SYNC    0x02
-
-typedef struct cmd_s {
-    char *cmd_str;
-    uint8_t flag;
-    uint8_t id;
-    void (* cmd_func)(void);
-    void (* cmd_callback)(void *arg);
-} ssc_cmd_t;
-
-#define MAX_LINE_N  127
-
-typedef enum {
-    SSC_BR_9600   = 9600,
-    SSC_BR_19200  = 19200,
-    SSC_BR_38400  = 38400,
-    SSC_BR_57600  = 57600,
-    SSC_BR_74880  = 74880,
-    SSC_BR_115200 = 115200,
-    SSC_BR_230400 = 230400,
-    SSC_BR_460800 = 460800,
-    SSC_BR_921600 = 921600
-} SscBaudRate;
-
-/** \defgroup SSC_APIs SSC APIs
-  * @brief SSC APIs
-  *
-  * SSC means simple serial command.
-  * SSC APIs allows users to define their own command, users can refer to spiffs_test/test_main.c.
-  *
-  */
-
-/** @addtogroup SSC_APIs
-  * @{
-  */
-
-/**
-  * @brief  Initial the ssc function.
-  *
-  * @attention param is no use, just compatible with ESP8266, default bandrate is 115200
-  *
-  * @param  SscBaudRate bandrate : baud rate
-  *
-  * @return null
-  */
-void ssc_attach(SscBaudRate bandrate);
-
-/**
-  * @brief   Get the length of the simple serial command.
-  *
-  * @param   null
-  *
-  * @return  length of the command.
-  */
-int ssc_param_len(void);
-
-/**
-  * @brief   Get the simple serial command string.
-  *
-  * @param   null
-  *
-  * @return  the command.
-  */
-char *ssc_param_str(void);
-
-/**
-  * @brief   Parse the simple serial command (ssc).
-  *
-  * @param   char *pLine  : [input] the ssc string
-  * @param   char *argv[] : [output] parameters of the ssc
-  *
-  * @return  the number of parameters.
-  */
-int ssc_parse_param(char *pLine, char *argv[]);
-
-/**
-  * @brief  Register the user-defined simple serial command (ssc) set.
-  *
-  * @param  ssc_cmd_t *cmdset   : the ssc set
-  * @param  uint8 cmdnum        : number of commands
-  * @param  void (* help)(void) : callback of user-guide
-  *
-  * @return  null
-  */
-void ssc_register(ssc_cmd_t *cmdset, uint8_t cmdnum, void (* help)(void));
-
-/**
-  * @}
-  */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __ESP_SSC_H__ */