diff --git a/libraries/tests/utest/serial_asynch/serial_asynch.cpp b/libraries/tests/utest/serial_asynch/serial_asynch.cpp
index df45e18657..1675fa05e0 100644
--- a/libraries/tests/utest/serial_asynch/serial_asynch.cpp
+++ b/libraries/tests/utest/serial_asynch/serial_asynch.cpp
@@ -47,6 +47,22 @@
 #define TEST_SERIAL_ONE_TX_PIN D1   // UART2
 #define TEST_SERIAL_TWO_RX_PIN D4   // UART5
 
+#elif defined(TARGET_DISCO_F334C8)
+#define TEST_SERIAL_ONE_TX_PIN PB_10   // UART3
+#define TEST_SERIAL_TWO_RX_PIN PA_10   // UART1
+
+#elif defined(TARGET_NUCLEO_F302R8)
+#define TEST_SERIAL_ONE_TX_PIN PB_10   // UART3
+#define TEST_SERIAL_TWO_RX_PIN PA_10   // UART1
+
+#elif defined(TARGET_NUCLEO_F303RE)
+#define TEST_SERIAL_ONE_TX_PIN PB_10   // UART3
+#define TEST_SERIAL_TWO_RX_PIN PA_10   // UART1
+
+#elif defined(TARGET_NUCLEO_F334R8)
+#define TEST_SERIAL_ONE_TX_PIN PB_10   // UART3
+#define TEST_SERIAL_TWO_RX_PIN PA_10   // UART1
+
 #elif defined(TARGET_DISCO_F429ZI)
 #define TEST_SERIAL_ONE_TX_PIN PD_5   // UART2
 #define TEST_SERIAL_TWO_RX_PIN PG_9   // UART6