diff --git a/IODevice.h b/IODevice.h
index 6c70f5f..d507cd6 100644
--- a/IODevice.h
+++ b/IODevice.h
@@ -547,6 +547,6 @@ protected:
 #include "IO_duinoNodes.h"
 #include "IO_EXIOExpander.h"
 #include "IO_trainbrains.h"
-
+#include "IO_EncoderThrottle.h"
 
 #endif // iodevice_h
diff --git a/IO_RocoDriver.h b/IO_EncoderThrottle.cpp
similarity index 84%
rename from IO_RocoDriver.h
rename to IO_EncoderThrottle.cpp
index 08ab73b..76a5f85 100644
--- a/IO_RocoDriver.h
+++ b/IO_EncoderThrottle.cpp
@@ -18,17 +18,14 @@
 */
 
 /*
-* The IO_RocoDriver device driver uses a rotary encoder connected to vpins
+* The IO_EncoderThrottle device driver uses a rotary encoder connected to vpins
 * to drive a loco.
 *  Loco id is selected by writeAnalog.
 */
 
-#ifndef IO_ROCODRIVER_H
-#define IO_ROCODRIVER_H
-
-#include "DCC.h"
 #include "IODevice.h"
 #include "DIAG.h"
+#include "DCC.h"
 
 const byte _DIR_CW = 0x10;  // Clockwise step
 const byte _DIR_CCW = 0x20;  // Counter-clockwise step
@@ -45,21 +42,14 @@ const byte _STATE_MASK = 0x07;
 const byte _DIR_MASK = 0x30;
 
 
-class RocoDriver : public IODevice {
-public:
-  
-  static void create(VPIN firstVpin, int dtPin, int clkPin, int clickPin, byte notch=10) {
-    if (checkNoOverlap(firstVpin)) new RocoDriver(firstVpin, dtPin,clkPin,clickPin,notch);
-  }
 
-private:
-  int _dtPin,_clkPin,_clickPin, _locoid, _notch,_prevpinstate; 
-  enum {xrSTOP,xrFWD,xrREV} _stopState;
-  byte _rocoState;  
+  void EncoderThrottle::create(VPIN firstVpin, int dtPin, int clkPin, int clickPin, byte notch) {
+    if (checkNoOverlap(firstVpin)) new EncoderThrottle(firstVpin, dtPin,clkPin,clickPin,notch);
+  }
 
 
   // Constructor
-  RocoDriver(VPIN firstVpin, int dtPin, int clkPin, int clickPin, byte notch){
+  EncoderThrottle::EncoderThrottle(VPIN firstVpin, int dtPin, int clkPin, int clickPin, byte notch){
     _firstVpin = firstVpin;
     _nPins = 1;
     _I2CAddress = 0;
@@ -80,7 +70,7 @@ private:
 
   
 
-  void _loop(unsigned long currentMicros) override {
+  void EncoderThrottle::_loop(unsigned long currentMicros)  {
     if (_locoid==0) return;  // not in use
     
     // Clicking down on the roco, stops the loco and sets the direction as unknown.
@@ -129,7 +119,7 @@ private:
 
   // Selocoid as analog value to start drive
   // use <z vpin locoid [notch]>
-  void _writeAnalogue(VPIN vpin, int value, uint8_t param1, uint16_t param2) override {  
+  void EncoderThrottle::_writeAnalogue(VPIN vpin, int value, uint8_t param1, uint16_t param2)  {  
     (void) param2;
     _locoid=value;
     if (param1>0) _notch=param1;
@@ -148,10 +138,7 @@ private:
   }
 
   
-  void _display() override {
+  void EncoderThrottle::_display() {
     DIAG(F("DRIVE vpin %d loco %d notch %d"),_firstVpin,_locoid,_notch);
   }
 
- };
-
-#endif
diff --git a/IO_EncoderThrottle.h b/IO_EncoderThrottle.h
new file mode 100644
index 0000000..05ce2eb
--- /dev/null
+++ b/IO_EncoderThrottle.h
@@ -0,0 +1,53 @@
+/*
+ *  © 2024, Chris Harlow. All rights reserved.
+ *
+ *  This file is part of EX-CommandStation
+ *
+ *  This is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  It is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with CommandStation.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+/*
+* The IO_EncoderThrottle device driver uses a rotary encoder connected to vpins
+* to drive a loco.
+*  Loco id is selected by writeAnalog.
+*/
+
+#ifndef IO_EncoderThrottle_H
+#define IO_EncoderThrottle_H
+#include "IODevice.h"
+
+class EncoderThrottle : public IODevice {
+public:
+  
+  static void create(VPIN firstVpin, int dtPin, int clkPin, int clickPin, byte notch=10);
+ 
+private:
+  int _dtPin,_clkPin,_clickPin, _locoid, _notch,_prevpinstate; 
+  enum {xrSTOP,xrFWD,xrREV} _stopState;
+  byte _rocoState;  
+
+  // Constructor
+  EncoderThrottle(VPIN firstVpin, int dtPin, int clkPin, int clickPin, byte notch);
+  
+  void _loop(unsigned long currentMicros) override ;
+
+  // Selocoid as analog value to start drive
+  // use <z vpin locoid [notch]>
+  void _writeAnalogue(VPIN vpin, int value, uint8_t param1, uint16_t param2) override;
+  
+  void _display() override ;
+
+ };
+
+#endif
diff --git a/version.h b/version.h
index 084751d..1746bd5 100644
--- a/version.h
+++ b/version.h
@@ -3,7 +3,9 @@
 
 #include "StringFormatter.h"
 
-#define VERSION "5.2.69"
+#define VERSION "5.2.70"
+// 5.2.70 -  IO_RocoDriver renamed to IO_EncoderThrottle.
+//        -  and included in IODEvice.h (circular dependency removed) 
 // 5.2.69 -  IO_RocoDriver. Direct drive train with rotary encoder hw.
 // 5.2.68 -  Revert function map to signed (from 5.2.66) to avoid
 //           incompatibilities with ED etc for F31 frequency flag.