diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/README.md b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/README.md
index 94b21fbfe0..4f1a4bc2e2 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/README.md
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/README.md
@@ -24,8 +24,8 @@ Hardware Drivers Config --->
 
 | Arduino引脚编号  | LPC55引脚编号 | 5V容忍 | 备注  |
 | ------------------- | --------- | ---- | ------------------------------------------------------------------------- |
-| 0 (D0) | P(1,24) | 是/否 | Serial2-RX，默认被RT-Thread的UART设备框架uart1接管 |
-| 1 (D1) | P(0,27) | 是/否 | Serial2-TX，默认被RT-Thread的UART设备框架uart1接管 |
+| 0 (D0) | P(1,24) | 是/否 | Serial2-RX，默认被RT-Thread的UART设备框架uart2接管 |
+| 1 (D1) | P(0,27) | 是/否 | Serial2-TX，默认被RT-Thread的UART设备框架uart2接管 |
 | 2 (D2) | P(0,15) | 是/否 |  |
 | 3 (D3) | P(1,6) | 是/否 |  |
 | 4 (D4) | P(1,7) | 是/否 | PWM2-CH2，默认被RT-Thread的PWM设备框架pwm2接管 |
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.c b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.c
index 5aa441b4d4..0c02e3ac29 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.c
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.c
@@ -23,8 +23,8 @@
  */
 const pin_map_t pin_map_table[]=
 {
-    {D0, GET_PINS(1,24), "uart1"},      /* Serial2-RX */
-    {D1, GET_PINS(0,27), "uart1"},      /* Serial2-TX */
+    {D0, GET_PINS(1,24), "uart2"},      /* Serial2-RX */
+    {D1, GET_PINS(0,27), "uart2"},      /* Serial2-TX */
     {D2, GET_PINS(0,15)},
     {D3, GET_PINS(1,6)},
     {D4, GET_PINS(1,7), "pwm2", 2},     /* PWM */
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.h b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.h
index b5487c5426..22dbc3b4e3 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.h
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/applications/arduino_pinout/pins_arduino.h
@@ -44,6 +44,6 @@
 #define RTDUINO_DEFAULT_IIC_BUS_NAME    "i2c1"
 
 /* Serial2 : P(,27-TX  P(,24-RX */
-#define RTDUINO_SERIAL2_DEVICE_NAME      "uart1"
+#define RTDUINO_SERIAL2_DEVICE_NAME      "uart2"
 
 #endif /* Pins_Arduino_h */
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig b/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
index ff786f2c5c..99d7da5bae 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
@@ -266,7 +266,7 @@ menu "Onboard Peripheral Drivers"
     config BSP_USING_ARDUINO
         bool "Compatible with Arduino Ecosystem (RTduino)"
         select PKG_USING_RTDUINO
-        select BSP_USING_STLINK_TO_USART
+        select BSP_USING_UART2
         select BSP_USING_GPIO
         select BSP_USING_ADC
         select BSP_USING_ADC0