diff --git a/MotorDrivers.h b/MotorDrivers.h
index defbfd4..63f0c98 100644
--- a/MotorDrivers.h
+++ b/MotorDrivers.h
@@ -82,6 +82,9 @@
 #define EX8874_SHIELD F("EX8874"), \
  new MotorDriver( 3, 12, UNUSED_PIN, 9, A0, 1.27, 5000, A4), \
  new MotorDriver( 5, 13, UNUSED_PIN, 6, A1, 1.27, 5000, A5)
+#elif defined(ARDUINO_NUCLEO_F446ZE) || defined(ARDUINO_NUCLEO_F413ZH) 
+ new MotorDriver( 3, 12, UNUSED_PIN, 9, A0, 1.27, 5000, A4), \
+ new MotorDriver( 11, 13, UNUSED_PIN, 6, A1, 1.27, 5000, A5)
 #else
 // EX 8874 based shield connected to a 3V3 system with 12-bit (4096) ADC
 #define EX8874_SHIELD F("EX8874"), \
diff --git a/version.h b/version.h
index f32c980..149b45a 100644
--- a/version.h
+++ b/version.h
@@ -3,7 +3,10 @@
 
 #include "StringFormatter.h"
 
-#define VERSION "5.5.16"
+#define VERSION "5.5.17"
+// 5.5.17 - Add EX8874 shield for F413ZH/F446RE
+//        - Nucleo-F4 timer sync for DC mode
+//        - <JL> command - power state and current by track
 // 5.5.16 - DOXYGEN comments in EXRAIL2MacroReset.h
 // 5.5.15 - Support for F429ZI/F329ZI
 //        - Own mDNS support for (wired) Ethernet