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-rw-r--r--src/drivers/boards/px4fmuv2/px4fmu_internal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/drivers/boards/px4fmuv2/px4fmu_internal.h b/src/drivers/boards/px4fmuv2/px4fmu_internal.h
index dce51bcda..76aa042f6 100644
--- a/src/drivers/boards/px4fmuv2/px4fmu_internal.h
+++ b/src/drivers/boards/px4fmuv2/px4fmu_internal.h
@@ -59,7 +59,7 @@ __BEGIN_DECLS
/* Configuration ************************************************************************************/
/* PX4IO connection configuration */
-#define PX4IO_SERIAL_DEVICE "/dev/ttyS5"
+#define PX4IO_SERIAL_DEVICE "/dev/ttyS4"
#define PX4IO_SERIAL_TX_GPIO GPIO_USART6_TX
#define PX4IO_SERIAL_RX_GPIO GPIO_USART6_RX
#define PX4IO_SERIAL_BASE STM32_USART6_BASE /* hardwired on the board */