diff --git a/boards/xtensa/esp32/esp32-devkitc/configs/rmt/defconfig b/boards/xtensa/esp32/esp32-devkitc/configs/rmt/defconfig
new file mode 100644
index 0000000000..6bf5a0109f
--- /dev/null
+++ b/boards/xtensa/esp32/esp32-devkitc/configs/rmt/defconfig
@@ -0,0 +1,48 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_ARCH_LEDS is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+CONFIG_ARCH="xtensa"
+CONFIG_ARCH_BOARD="esp32-devkitc"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ESP32_DEVKITC=y
+CONFIG_ARCH_CHIP="esp32"
+CONFIG_ARCH_CHIP_ESP32=y
+CONFIG_ARCH_CHIP_ESP32WROVER=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_XTENSA=y
+CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BUILTIN=y
+CONFIG_ESP32_RMT=y
+CONFIG_ESP32_UART0=y
+CONFIG_EXAMPLES_WS2812_ESP32_RMT=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_FS_PROCFS=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_IDLETHREAD_STACKSIZE=3072
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MM_REGIONS=3
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=114688
+CONFIG_RAM_START=0x20000000
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=6
+CONFIG_START_MONTH=12
+CONFIG_START_YEAR=2011
+CONFIG_SYSLOG_BUFFER=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_UART0_SERIAL_CONSOLE=y
diff --git a/boards/xtensa/esp32/esp32-devkitc/configs/wifi_smp_rmt/defconfig b/boards/xtensa/esp32/esp32-devkitc/configs/wifi_smp_rmt/defconfig
deleted file mode 100644
index 54f1dd3974..0000000000
--- a/boards/xtensa/esp32/esp32-devkitc/configs/wifi_smp_rmt/defconfig
+++ /dev/null
@@ -1,119 +0,0 @@
-#
-# This file is autogenerated: PLEASE DO NOT EDIT IT.
-#
-# You can use "make menuconfig" to make any modifications to the installed .config file.
-# You can then do "make savedefconfig" to generate a new defconfig file that includes your
-# modifications.
-#
-# CONFIG_ARCH_LEDS is not set
-# CONFIG_NSH_ARGCAT is not set
-# CONFIG_NSH_CMDOPT_HEXDUMP is not set
-CONFIG_ALLOW_BSD_COMPONENTS=y
-CONFIG_ARCH="xtensa"
-CONFIG_ARCH_BOARD="esp32-devkitc"
-CONFIG_ARCH_BOARD_COMMON=y
-CONFIG_ARCH_BOARD_ESP32_DEVKITC=y
-CONFIG_ARCH_CHIP="esp32"
-CONFIG_ARCH_CHIP_ESP32=y
-CONFIG_ARCH_CHIP_ESP32WROVER=y
-CONFIG_ARCH_INTERRUPTSTACK=2048
-CONFIG_ARCH_SETJMP_H=y
-CONFIG_ARCH_STACKDUMP=y
-CONFIG_ARCH_XTENSA=y
-CONFIG_BOARD_LOOPSPERMSEC=16717
-CONFIG_BUILTIN=y
-CONFIG_CODECS_HASH_MD5=y
-CONFIG_DEBUG_ASSERTIONS=y
-CONFIG_DEBUG_FEATURES=y
-CONFIG_DEBUG_FULLOPT=y
-CONFIG_DEBUG_SYMBOLS=y
-CONFIG_DEV_URANDOM=y
-CONFIG_DRIVERS_IEEE80211=y
-CONFIG_DRIVERS_WIRELESS=y
-CONFIG_ESP32_RMT=y
-CONFIG_ESP32_SPIFLASH=y
-CONFIG_ESP32_SPIFLASH_SPIFFS=y
-CONFIG_ESP32_STORAGE_MTD_SIZE=0x80000
-CONFIG_ESP32_UART0=y
-CONFIG_ESP32_WIFI=y
-CONFIG_EXAMPLES_HELLO=y
-CONFIG_EXAMPLES_WEBSERVER=y
-CONFIG_EXPERIMENTAL=y
-CONFIG_FS_PROCFS=y
-CONFIG_HAVE_CXX=y
-CONFIG_HAVE_CXXINITIALIZE=y
-CONFIG_IDLETHREAD_STACKSIZE=2048
-CONFIG_INIT_ENTRYPOINT="nsh_main"
-CONFIG_INIT_STACKSIZE=3072
-CONFIG_INTELHEX_BINARY=y
-CONFIG_IOB_NBUFFERS=128
-CONFIG_MM_REGIONS=4
-CONFIG_NAME_MAX=48
-CONFIG_NETDB_DNSCLIENT=y
-CONFIG_NETDB_DNSCLIENT_NAMESIZE=64
-CONFIG_NETDEV_LATEINIT=y
-CONFIG_NETDEV_PHY_IOCTL=y
-CONFIG_NETDEV_WIRELESS_IOCTL=y
-CONFIG_NETUTILS_CJSON=y
-CONFIG_NETUTILS_CODECS=y
-CONFIG_NETUTILS_HTTPD_DIRLIST=y
-CONFIG_NETUTILS_HTTPD_SENDFILE=y
-CONFIG_NETUTILS_IPERF=y
-CONFIG_NETUTILS_NTPCLIENT_STACKSIZE=4096
-CONFIG_NETUTILS_TELNETD=y
-CONFIG_NETUTILS_WEBCLIENT=y
-CONFIG_NETUTILS_WEBSERVER=y
-CONFIG_NET_BROADCAST=y
-CONFIG_NET_ETH_PKTSIZE=1518
-CONFIG_NET_ICMP=y
-CONFIG_NET_ICMP_SOCKET=y
-CONFIG_NET_STATISTICS=y
-CONFIG_NET_TCP=y
-CONFIG_NET_TCP_WRITE_BUFFERS=y
-CONFIG_NET_UDP=y
-CONFIG_NFS=y
-CONFIG_NSH_ARCHINIT=y
-CONFIG_NSH_BUILTIN_APPS=y
-CONFIG_NSH_CODECS_BUFSIZE=2048
-CONFIG_NSH_FILEIOSIZE=512
-CONFIG_NSH_LINELEN=300
-CONFIG_NSH_READLINE=y
-CONFIG_NSH_WGET_BUFF_SIZE=2048
-CONFIG_PREALLOC_TIMERS=4
-CONFIG_PTHREAD_MUTEX_TYPES=y
-CONFIG_RAM_SIZE=114688
-CONFIG_RAM_START=0x20000000
-CONFIG_READLINE_CMD_HISTORY=y
-CONFIG_RR_INTERVAL=200
-CONFIG_RTC=y
-CONFIG_RTC_ALARM=y
-CONFIG_RTC_DRIVER=y
-CONFIG_RTC_NALARMS=2
-CONFIG_SCHED_LPWORK=y
-CONFIG_SIG_DEFAULT=y
-CONFIG_SMP=y
-CONFIG_SMP_NCPUS=2
-CONFIG_SPI=y
-CONFIG_SPIFFS_NAME_MAX=48
-CONFIG_STACK_COLORATION=y
-CONFIG_START_DAY=18
-CONFIG_START_MONTH=2
-CONFIG_START_YEAR=2021
-CONFIG_SYSLOG_BUFFER=y
-CONFIG_SYSLOG_TIMESTAMP=y
-CONFIG_SYSTEM_DHCPC_RENEW=y
-CONFIG_SYSTEM_NSH=y
-CONFIG_SYSTEM_NTPC=y
-CONFIG_SYSTEM_PING=y
-CONFIG_SYSTEM_SYSTEM=y
-CONFIG_SYSTEM_TASKSET=y
-CONFIG_TESTING_GETPRIME=y
-CONFIG_TESTING_OSTEST=y
-CONFIG_TESTING_SMP=y
-CONFIG_TLS_TASK_NELEM=4
-CONFIG_UART0_SERIAL_CONSOLE=y
-CONFIG_WIRELESS=y
-CONFIG_WIRELESS_WAPI=y
-CONFIG_WIRELESS_WAPI_CMDTOOL=y
-CONFIG_WIRELESS_WAPI_INITCONF=y
-CONFIG_WIRELESS_WAPI_STACKSIZE=4096