diff --git a/radio/src/pulses/multi.cpp b/radio/src/pulses/multi.cpp
index fb588b734..7a0bcc28c 100644
--- a/radio/src/pulses/multi.cpp
+++ b/radio/src/pulses/multi.cpp
@@ -24,6 +24,7 @@
 
 #include "io/multi_protolist.h"
 #include "telemetry/multi.h"
+#include "mixer_scheduler.h"
 
 // for the  MULTI protocol definition
 // see https://github.com/pascallanger/DIY-Multiprotocol-TX-Module
@@ -249,6 +250,67 @@ void setupPulsesMultiInternalModule()
   intmodulePulsesData.multi.initFrame();
   setupPulsesMulti(INTERNAL_MODULE);
 }
+
+static void* multiInit(uint8_t module)
+{
+  (void)module;
+  
+  // serial port setup
+  intmodulePulsesData.multi.initFrame();
+  intmoduleFifo.clear();
+  IntmoduleSerialDriver.init(&multiSerialInitParams);
+
+  // mixer setup
+  mixerSchedulerSetPeriod(INTERNAL_MODULE, MULTIMODULE_PERIOD);
+
+  // reset status
+  getMultiModuleStatus(INTERNAL_MODULE).failsafeChecked = false;
+  getMultiModuleStatus(INTERNAL_MODULE).flags = 0;
+
+#if defined(MULTI_PROTOLIST)
+  TRACE("enablePulsesInternalModule(): trigger scan");
+  MultiRfProtocols::instance(INTERNAL_MODULE)->triggerScan();
+  TRACE("counter = %d", moduleState[INTERNAL_MODULE].counter);
+#endif
+
+  return nullptr;
+}
+
+static void multiDeInit(void* context)
+{
+  (void)context;
+  mixerSchedulerSetPeriod(INTERNAL_MODULE, 0);
+  IntmoduleSerialDriver.deinit();
+  //TODO: power OFF ???
+}
+
+static void multiSetupPulses(void* context, int16_t* channels, uint8_t nChannels)
+{
+  (void)context;
+  // TODO:
+  (void)channels;
+  (void)nChannels;
+  
+  intmodulePulsesData.multi.initFrame();
+  setupPulsesMulti(INTERNAL_MODULE);
+}
+
+static void multiSendPulses(void* context)
+{
+  (void)context;
+  IntmoduleSerialDriver.sendBuffer(intmodulePulsesData.multi.getData(),
+                                   intmodulePulsesData.multi.getSize());
+}
+
+#include "hal/module_driver.h"
+
+const etx_module_driver_t MultiInternalDriver = {
+  .protocol = PROTOCOL_CHANNELS_MULTIMODULE,
+  .init = multiInit,
+  .deinit = multiDeInit,
+  .setupPulses = multiSetupPulses,
+  .sendPulses = multiSendPulses  
+};
 #endif
 
 void sendChannels(uint8_t moduleIdx)
diff --git a/radio/src/pulses/multi.h b/radio/src/pulses/multi.h
index 5721bdbe1..1b5f11fa3 100644
--- a/radio/src/pulses/multi.h
+++ b/radio/src/pulses/multi.h
@@ -24,6 +24,7 @@
 
 #include "pulses_common.h"
 #include "hal/serial_driver.h"
+#include "hal/module_driver.h"
 
 void multiPatchCustom(uint8_t moduleIdx);
 void convertEtxProtocolToMulti(int *protocol, int *subprotocol);
@@ -45,5 +46,6 @@ class UartMultiPulses: public DataBuffer<uint8_t, 64>
 };
 
 extern etx_serial_init multiSerialInitParams;
+extern const etx_module_driver_t MultiInternalDriver;
 
 #endif
diff --git a/radio/src/pulses/pulses.cpp b/radio/src/pulses/pulses.cpp
index 5407d431d..44f5bdf52 100755
--- a/radio/src/pulses/pulses.cpp
+++ b/radio/src/pulses/pulses.cpp
@@ -24,7 +24,6 @@
 #include "heartbeat_driver.h"
 
 #include "io/frsky_pxx2.h"
-#include "io/multi_protolist.h"
 #include "pulses/pxx2.h"
 #include "pulses/flysky.h"
 
@@ -40,6 +39,11 @@
 #include "pulses/crossfire.h"
 #endif
 
+#if defined(MULTIMODULE)
+#include "io/multi_protolist.h"
+#include "pulses/multi.h"
+#endif
+
 uint8_t s_pulses_paused = 0;
 ModuleState moduleState[NUM_MODULES];
 InternalModulePulsesData intmodulePulsesData __DMA;
@@ -324,24 +328,8 @@ static void enablePulsesInternalModule(uint8_t protocol)
 
 #if defined(INTERNAL_MODULE_MULTI)
     case PROTOCOL_CHANNELS_MULTIMODULE:
-      // TODO: use module interface
-      // serial port setup
-      intmodulePulsesData.multi.initFrame();
-      intmoduleFifo.clear();
-      IntmoduleSerialDriver.init(&multiSerialInitParams);
-
-      // mixer setup
-      mixerSchedulerSetPeriod(INTERNAL_MODULE, MULTIMODULE_PERIOD);
-
-      // reset status
-      getMultiModuleStatus(INTERNAL_MODULE).failsafeChecked = false;
-      getMultiModuleStatus(INTERNAL_MODULE).flags = 0;
-
-#if defined(MULTI_PROTOLIST)
-      TRACE("enablePulsesInternalModule(): trigger scan");
-      MultiRfProtocols::instance(INTERNAL_MODULE)->triggerScan();
-      TRACE("counter = %d", moduleState[INTERNAL_MODULE].counter);
-#endif
+      internalModuleContext = MultiInternalDriver.init(INTERNAL_MODULE);
+      internalModuleDriver = &MultiInternalDriver;
       break;
 #endif
 
@@ -409,13 +397,6 @@ bool setupPulsesInternalModule(uint8_t protocol)
       return true;
 #endif
 
-#if defined(INTERNAL_MODULE_MULTI)
-    case PROTOCOL_CHANNELS_MULTIMODULE:
-      setupPulsesMultiInternalModule();
-      mixerSchedulerSetPeriod(INTERNAL_MODULE, MULTIMODULE_PERIOD);
-      return true;
-#endif
-
 #if defined(AFHDS2)
     case PROTOCOL_CHANNELS_AFHDS2A:
     { 
@@ -480,13 +461,6 @@ void intmoduleSendNextFrame()
 #endif
 #endif
 
-#if defined(INTERNAL_MODULE_MULTI)
-    case PROTOCOL_CHANNELS_MULTIMODULE:
-      IntmoduleSerialDriver.sendBuffer(intmodulePulsesData.multi.getData(),
-                                       intmodulePulsesData.multi.getSize());
-      break;
-#endif
-
 #if defined(AFHDS2)
   case PROTOCOL_CHANNELS_AFHDS2A: {
     uint8_t* data = (uint8_t*)intmodulePulsesData.flysky.pulses;