diff --git a/bsp/stm32/stm32l475-atk-pandora/.config b/bsp/stm32/stm32l475-atk-pandora/.config
index c96890d11748e0a0f96117c1e30287fa57312c5a..e78da4c3b0f251374412aed24b90488c3b11b756 100644
--- a/bsp/stm32/stm32l475-atk-pandora/.config
+++ b/bsp/stm32/stm32l475-atk-pandora/.config
@@ -132,9 +132,10 @@ CONFIG_RT_USING_DEVICE_IPC=y
 CONFIG_RT_PIPE_BUFSZ=512
 # CONFIG_RT_USING_SYSTEM_WORKQUEUE is not set
 CONFIG_RT_USING_SERIAL=y
-# CONFIG_RT_USING_SERIAL_V1 is not set
-CONFIG_RT_USING_SERIAL_V2=y
+CONFIG_RT_USING_SERIAL_V1=y
+# CONFIG_RT_USING_SERIAL_V2 is not set
 CONFIG_RT_SERIAL_USING_DMA=y
+CONFIG_RT_SERIAL_RB_BUFSZ=64
 # CONFIG_RT_USING_CAN is not set
 # CONFIG_RT_USING_HWTIMER is not set
 # CONFIG_RT_USING_CPUTIME is not set
diff --git a/bsp/stm32/stm32l475-atk-pandora/board/Kconfig b/bsp/stm32/stm32l475-atk-pandora/board/Kconfig
index d4ea946684725253cc71030910d52eb84e3e96f0..0a9f253d5d29c75bb49454c527f5b7400a8223d0 100644
--- a/bsp/stm32/stm32l475-atk-pandora/board/Kconfig
+++ b/bsp/stm32/stm32l475-atk-pandora/board/Kconfig
@@ -455,6 +455,32 @@ endmenu
 
 menu "Board extended module Drivers"
 
+    menuconfig BSP_USING_AT_ESP8266
+        bool "Enable ESP8266(AT Command, COM2)"
+        default n
+        select BSP_USING_COM2
+        select PKG_USING_AT_DEVICE
+        select AT_DEVICE_USING_ESP8266
+        select AT_DEVICE_ESP8266_SAMPLE
+
+        if BSP_USING_AT_ESP8266
+            config ESP8266_SAMPLE_WIFI_SSID
+                string "WIFI ssid"
+                default "rtthread"
+
+            config ESP8266_SAMPLE_WIFI_PASSWORD
+                string "WIFI password"
+                default "12345678"
+
+            config ESP8266_SAMPLE_CLIENT_NAME
+                string "AT client device name (Must be 'uart2')"
+                default "uart2"
+
+            config ESP8266_SAMPLE_RECV_BUFF_LEN
+                int "The maximum length of receive line buffer"
+                default 512
+        endif
+
     config BSP_USING_NRF24L01
         bool "Enable NRF24L01"
         select BSP_USING_SPI
diff --git a/bsp/stm32/stm32l475-atk-pandora/rtconfig.h b/bsp/stm32/stm32l475-atk-pandora/rtconfig.h
index 4a5dbbb1008a51b8a7e51662403316c74cedcc0a..bdc7fe71dea2663a3c04f9b7327b368b413fe6bc 100644
--- a/bsp/stm32/stm32l475-atk-pandora/rtconfig.h
+++ b/bsp/stm32/stm32l475-atk-pandora/rtconfig.h
@@ -89,8 +89,9 @@
 #define RT_USING_DEVICE_IPC
 #define RT_PIPE_BUFSZ 512
 #define RT_USING_SERIAL
-#define RT_USING_SERIAL_V2
+#define RT_USING_SERIAL_V1
 #define RT_SERIAL_USING_DMA
+#define RT_SERIAL_RB_BUFSZ 64
 #define RT_USING_PIN
 
 /* Using USB */