diff --git a/ports/stm32/boards/STM32F429DISC/mpconfigboard.h b/ports/stm32/boards/STM32F429DISC/mpconfigboard.h
index 95cab08c8f..cfd9ef9d08 100644
--- a/ports/stm32/boards/STM32F429DISC/mpconfigboard.h
+++ b/ports/stm32/boards/STM32F429DISC/mpconfigboard.h
@@ -19,8 +19,12 @@
 // UART config
 #define MICROPY_HW_UART1_TX     (pin_A9)
 #define MICROPY_HW_UART1_RX     (pin_A10)
-#define MICROPY_HW_UART2_TX     (pin_D8)
-#define MICROPY_HW_UART2_RX     (pin_D9)
+#define MICROPY_HW_UART2_TX     (pin_D5)
+#define MICROPY_HW_UART2_RX     (pin_D6)
+#define MICROPY_HW_UART3_TX     (pin_C10)
+#define MICROPY_HW_UART3_RX     (pin_C11)
+#define MICROPY_HW_UART6_TX     (pin_C6)
+#define MICROPY_HW_UART6_RX     (pin_C7)
 
 // I2C buses
 #define MICROPY_HW_I2C3_SCL (pin_A8)