diff --git a/306-controller_interface.X/factory/factory.c b/306-controller_interface.X/factory/factory.c
index d1c1920..f0f5b58 100644
--- a/306-controller_interface.X/factory/factory.c
+++ b/306-controller_interface.X/factory/factory.c
@@ -52,7 +52,7 @@ void Factory_build() {
     ButtonSM_setObserver(bsm(), blc(), &BLControl_onButton);
     
     ECAN_SetRXBnInterruptHandler(CANINTERFACE_newMsg);
-    CANINTERFACE_onProcessCan(foo);
+    //CANINTERFACE_onProcessCan(foo);
 }
 
 //start all state machines
diff --git a/306-controller_interface.X/middleware/can/can_interface.c b/306-controller_interface.X/middleware/can/can_interface.c
index b48d487..4ac0fce 100644
--- a/306-controller_interface.X/middleware/can/can_interface.c
+++ b/306-controller_interface.X/middleware/can/can_interface.c
@@ -10,7 +10,7 @@
 void CANINTERFACE_init(){
     CANINTERFACE_myself.wait.f = NULL;
     CANINTERFACE_myself.read.f = NULL;
-    CANINTERFACE_myself.processCan = NULL;
+    //CANINTERFACE_myself.processCan = NULL;
 }
 
 void CANINTERFACE_startBehaviour(){
diff --git a/306-controller_interface.X/middleware/can/can_sender.c b/306-controller_interface.X/middleware/can/can_sender.c
new file mode 100644
index 0000000..1de392d
--- /dev/null
+++ b/306-controller_interface.X/middleware/can/can_sender.c
@@ -0,0 +1,107 @@
+/**
+ * @author Rémi Heredero
+ * @version 1.0.0
+ * @date August 2023
+ * @file can_sender.c
+ */
+
+#include "can_sender.h"
+
+void CAN_SENDER_init(CAN_SENDER* me){
+    me->state = STCS_INIT;
+    me->sendingTime = 1;
+    me->wait.f = NULL;
+    me->send.f = NULL;
+}
+
+void CAN_SENDER_startBehaviour(CAN_SENDER* me){
+    POST(me, &CAN_SENDER_processEvent, evCSinit, 0, 0);
+}
+
+bool CAN_SENDER_processEvent(Event* ev) {
+    bool processed = false;
+    CAN_SENDER* me = (CAN_SENDER*)Event_getTarget(ev);
+    CAN_SENDER_STATES oldState = me->state;
+    evIDT evid = Event_getId(ev);
+    
+    switch (me->state) {        // onState
+        case STCS_INIT:
+            if (ev->id == evCSinit) {
+                
+            }
+            break;
+        
+        case STCS_WAIT:
+            break;
+        
+        case STCS_SEND:
+            break;
+    }
+
+    if(oldState != me->state){
+        switch (oldState) {     // onExit
+            case STCS_INIT:
+                break;
+            
+            case STCS_WAIT:
+                break;
+            
+            case STCS_SEND:
+                break;
+        }
+
+        switch (me->state) {    // onEntry
+            case STCS_INIT:
+                break;
+            
+            case STCS_WAIT:
+                if (me->wait.f != NULL) {
+                    me->wait.f(me->wait.p);
+                }
+                break;
+            
+            case STCS_SEND:
+                if (me->send.f != NULL) {
+                    me->send.f(me->send.p);
+                }
+                break;
+        }
+
+        processed = true;
+    }
+    return processed;
+}
+
+/*************
+ * Callbacks *
+ *************/
+
+void CAN_SENDER_onWait(CAN_SENDER* me, CAN_SENDER_CALLBACK_FUNCTION f, void* p) {
+    me->wait.f = f;
+    me->wait.p = p;
+}
+
+void CAN_SENDER_onSend(CAN_SENDER* me, CAN_SENDER_CALLBACK_FUNCTION f, void* p) {
+    me->send.f = f;
+    me->send.p = p;
+}
+
+/************
+ * EMITTERS *
+ ************/
+
+void CAN_SENDER_emitSend(CAN_SENDER* me, uint16_t t) {
+    POST(me, &CAN_SENDER_processEvent, evCSsend, t, 0);
+}
+
+void CAN_SENDER_emitDone(CAN_SENDER* me, uint16_t t) {
+    POST(me, &CAN_SENDER_processEvent, evCSdone, t, 0);
+}
+
+/***********
+ * SETTERS *
+ ***********/
+
+void CAN_SENDER_setSendingTime(CAN_SENDER* me, uint8_t v) {
+    me->sendingTime = v;
+}
diff --git a/306-controller_interface.X/middleware/can/can_sender.h b/306-controller_interface.X/middleware/can/can_sender.h
new file mode 100644
index 0000000..633cec3
--- /dev/null
+++ b/306-controller_interface.X/middleware/can/can_sender.h
@@ -0,0 +1,105 @@
+/**
+ * @author Rémi Heredero
+ * @version 1.0.0
+ * @date August 2023
+ * @file can_sender.h
+ */
+#ifndef CAN_SENDER_H
+#define CAN_SENDER_H
+
+#include "../../xf/xf.h"
+
+typedef enum {
+    STCS_INIT,
+    STCS_WAIT,
+    STCS_SEND
+} CAN_SENDER_STATES;
+
+typedef enum {
+    evCSinit = 15, // TODO change this number (< 256)
+    evCSsend,
+    evCSdone
+} CAN_SENDER_EVENTS;
+
+typedef void (*CAN_SENDER_CALLBACK_FUNCTION)(void*);
+typedef struct {
+    CAN_SENDER_CALLBACK_FUNCTION f; // function
+    void* p; // param(s)
+} CAN_SENDER_CALLBACK;
+
+typedef struct {
+    CAN_SENDER_STATES state;
+    uint8_t sendingTime;
+    CAN_SENDER_CALLBACK wait;
+    CAN_SENDER_CALLBACK send;
+} CAN_SENDER;
+
+/**
+ * Initialize the CAN_SENDER
+ * @param me the CAN_SENDER itself
+ */
+void CAN_SENDER_init(CAN_SENDER* me);
+
+/**
+ * Start the CAN_SENDER state machine
+ * @param me the CAN_SENDER itself
+ */
+void CAN_SENDER_startBehaviour(CAN_SENDER* me);
+
+/**
+ * Process the event
+ * @param ev the event to process
+ * @return true if the event is processed
+ */
+bool CAN_SENDER_processEvent(Event* ev);
+
+/*************
+ * Callbacks *
+ *************/
+
+/**
+ * Set the callback function to call when the CAN_SENDER is entering state wait
+ * @param me the CAN_SENDER itself
+ * @param f the function to call
+ * @param p the param(s) to pass to the function
+ */
+void CAN_SENDER_onWait(CAN_SENDER* me, CAN_SENDER_CALLBACK_FUNCTION f, void* p);
+
+/**
+ * Set the callback function to call when the CAN_SENDER is entering state send
+ * @param me the CAN_SENDER itself
+ * @param f the function to call
+ * @param p the param(s) to pass to the function
+ */
+void CAN_SENDER_onSend(CAN_SENDER* me, CAN_SENDER_CALLBACK_FUNCTION f, void* p);
+
+/************
+ * EMITTERS *
+ ************/
+
+/**
+ * Emit the send event
+ * @param me the CAN_SENDER itself
+ * @param t time to wait in ms before triggering event
+ */
+void CAN_SENDER_emitSend(CAN_SENDER* me, uint16_t t);
+
+/**
+ * Emit the done event
+ * @param me the CAN_SENDER itself
+ * @param t time to wait in ms before triggering event
+ */
+ void CAN_SENDER_emitDone(CAN_SENDER* me, uint16_t t);
+
+/***********
+ * SETTERS *
+ ***********/
+
+/**
+ * 
+ * @param me
+ * @param v
+ */
+void CAN_SENDER_setSendingTime(CAN_SENDER* me, uint8_t v);
+
+#endif
diff --git a/306-controller_interface.X/nbproject/configurations.xml b/306-controller_interface.X/nbproject/configurations.xml
index f88848a..b7db225 100644
--- a/306-controller_interface.X/nbproject/configurations.xml
+++ b/306-controller_interface.X/nbproject/configurations.xml
@@ -31,7 +31,10 @@
         <itemPath>mcc_generated_files/memory.h</itemPath>
       </logicalFolder>
       <logicalFolder name="middleware" displayName="middleware" projectFiles="true">
-        <itemPath>middleware/can_interface.h</itemPath>
+        <logicalFolder name="f1" displayName="can" projectFiles="true">
+          <itemPath>middleware/can/can_interface.h</itemPath>
+          <itemPath>middleware/can/can_sender.h</itemPath>
+        </logicalFolder>
       </logicalFolder>
       <logicalFolder name="xf" displayName="xf" projectFiles="true">
         <itemPath>xf/event.h</itemPath>
@@ -73,7 +76,10 @@
         <itemPath>mcc_generated_files/memory.c</itemPath>
       </logicalFolder>
       <logicalFolder name="middleware" displayName="middleware" projectFiles="true">
-        <itemPath>middleware/can_interface.c</itemPath>
+        <logicalFolder name="f1" displayName="can" projectFiles="true">
+          <itemPath>middleware/can/can_interface.c</itemPath>
+          <itemPath>middleware/can/can_sender.c</itemPath>
+        </logicalFolder>
       </logicalFolder>
       <logicalFolder name="xf" displayName="xf" projectFiles="true">
         <itemPath>xf/event.c</itemPath>