diff --git a/config.cc b/config.cc
index 9704029..9b8fd7b 100644
--- a/config.cc
+++ b/config.cc
@@ -7,4 +7,14 @@ namespace config
     uint16_t discover_port = 4419;
     int discover_timeout_ms = 2000;
     uint8_t discover_code_accept = 0;
+    uint8_t discover_code_reject = 100;
+
+    uint8_t command_code_get_time = 1;
+    uint8_t command_code_get_id = 2;
+    uint8_t command_code_set_name = 100;
+    uint8_t command_code_get_name = 101;
+    uint8_t command_code_set_schedule = 102;
+    uint8_t command_code_get_schedule = 103;
+    uint8_t command_code_set_relay_name = 104;
+    uint8_t command_code_get_relay_name = 105;
 }
diff --git a/config.h b/config.h
index 3a630b4..d7ea5c8 100644
--- a/config.h
+++ b/config.h
@@ -10,6 +10,16 @@ namespace config
     extern uint16_t discover_port;
     extern int discover_timeout_ms;
     extern uint8_t discover_code_accept;
+    extern uint8_t discover_code_reject;
+
+    extern uint8_t command_code_get_time;
+    extern uint8_t command_code_get_id;
+    extern uint8_t command_code_set_name;
+    extern uint8_t command_code_get_name;
+    extern uint8_t command_code_set_schedule;
+    extern uint8_t command_code_get_schedule;
+    extern uint8_t command_code_set_relay_name;
+    extern uint8_t command_code_get_relay_name;
 }
 
 #endif //EMGAUWA_CORE_CONFIG_H
diff --git a/controllers/api_v1_controllers_discover.cc b/controllers/api_v1_controllers_discover.cc
index 6927192..9bbf8f4 100644
--- a/controllers/api_v1_controllers_discover.cc
+++ b/controllers/api_v1_controllers_discover.cc
@@ -4,8 +4,8 @@
 #include <helpers.h>
 #include <cmath>
 #include <models/controller_dbo.h>
-#include <fstream>
 #include "api_v1_controllers.h"
+
 using namespace api::v1;
 
 void controllers::post_discover(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback)
@@ -94,15 +94,20 @@ void controllers::post_discover(const HttpRequestPtr &req, std::function<void(co
             }
 
             answer_payload[payload_length] = '\0';
-            std::ifstream answer_payload_stream(answer_payload);
+            std::istringstream answer_payload_stream(answer_payload);
 
             Json::CharReaderBuilder json_reader;
+            json_reader["strictRoot"] = true;
+
             std::string errors;
             Json::Value client_info;
 
             if (!Json::parseFromStream(json_reader, answer_payload_stream, &client_info, &errors))
             {
-                LOG_ERROR << "Failed to parse configuration: " << errors;
+                LOG_ERROR << "Failed to parse response: " << errors;
+                discover_answer_buf[0] = config::discover_code_reject;
+                send(client_fd, discover_answer_buf, sizeof(uint8_t), 0);
+                close(client_fd);
                 continue;
             }
 
@@ -120,7 +125,7 @@ void controllers::post_discover(const HttpRequestPtr &req, std::function<void(co
                     {
                         known_controllers[i]->active = true;
                         known_controllers[i]->update();
-                        free(known_controllers[i]);
+                        delete known_controllers[i];
                         found_discovered_in_list = true;
                         known_controllers[i] = known_controllers[i + 1];
                     }
diff --git a/controllers/api_v1_devices_relays.cc b/controllers/api_v1_devices_relays.cc
index 0d1c26a..72d34d9 100644
--- a/controllers/api_v1_devices_relays.cc
+++ b/controllers/api_v1_devices_relays.cc
@@ -2,6 +2,8 @@
 #include <models/relay_dbo.h>
 #include <helpers.h>
 #include <models/controller_dbo.h>
+#include <models/schedule_dbo.h>
+#include <config.h>
 #include "api_v1_controllers.h"
 
 using namespace api::v1;
@@ -93,8 +95,22 @@ controllers::put_relays_one_by_id_and_num(const HttpRequestPtr &req,
     }
     else
     {
+        auto schedules = schedule_dbo::get_by_simple("id", body["active_schedule"].asCString(), (intptr_t)&sqlite3_bind_text);
+        auto controllers = controller_dbo::get_by_simple("id", controller_id.c_str(), (intptr_t)&sqlite3_bind_text);
+
+        Json::Value payload;
+        payload["target"] = relay_num;
+        payload["schedule"] = schedules[0]->to_json();
+
+        Json::StreamWriterBuilder json_writer;
+
+        controllers[0]->command(config::command_code_set_schedule, Json::writeString(json_writer, payload).c_str());
+
         auto resp = HttpResponse::newHttpJsonResponse(relay->to_json());
         callback(resp);
+
+        schedule_dbo::free_list(schedules);
+        controller_dbo::free_list(controllers);
     }
 
     delete relay;
diff --git a/controllers/api_v1_schedules.cc b/controllers/api_v1_schedules.cc
index 613f4bf..68ad221 100644
--- a/controllers/api_v1_schedules.cc
+++ b/controllers/api_v1_schedules.cc
@@ -48,6 +48,15 @@ schedules::get_one_by_id(const HttpRequestPtr &req, std::function<void(const Htt
 void
 schedules::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& schedule_id)
 {
+    if(strcmp(schedule_id.c_str(), "off") == 0)
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k403Forbidden);
+        callback(resp);
+
+        return;
+    }
+
     schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
 
     if(schedules[0])
@@ -100,6 +109,15 @@ void
 schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
                          const std::string &schedule_id)
 {
+    if(strcmp(schedule_id.c_str(), "off") == 0)
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k403Forbidden);
+        callback(resp);
+
+        return;
+    }
+
     Json::Value body = *req->jsonObject();
 
     schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
diff --git a/helpers.h b/helpers.h
index 4fc3144..fe3080f 100644
--- a/helpers.h
+++ b/helpers.h
@@ -32,6 +32,9 @@ namespace helpers
 
     sqlite3_stmt*
     create_sql_filtered_query(const char *sql, sql_filter_builder **filters);
+
+    int
+    open_tcp_connection(char* host, char* port);
 }
 
 #endif //EMGAUWA_CORE_HELPERS_H
diff --git a/helpers/open_tcp_connection.cc b/helpers/open_tcp_connection.cc
new file mode 100644
index 0000000..099b8fa
--- /dev/null
+++ b/helpers/open_tcp_connection.cc
@@ -0,0 +1,33 @@
+#include <helpers.h>
+#include <netdb.h>
+#include <trantor/utils/Logger.h>
+
+int
+helpers::open_tcp_connection(char *host, char *port)
+{
+    int s, status;
+    struct addrinfo hints{}, *res;
+    memset(&hints, 0, sizeof hints);
+    hints.ai_family = AF_INET;
+    hints.ai_socktype = SOCK_STREAM;
+
+    if ((status = getaddrinfo(host, port, &hints, &res)) != 0)
+    {
+        LOG_ERROR << "Error getting addressinfo: " << gai_strerror(status);
+        freeaddrinfo(res);
+        return 0;
+    }
+
+    s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); //creating Socket
+
+    if ((status = connect(s, res->ai_addr, res->ai_addrlen)) != 0)
+    {
+        LOG_ERROR << "Error opening connection";
+        freeaddrinfo(res);
+        return 0;
+    }
+
+    freeaddrinfo(res);
+
+    return s;
+}
\ No newline at end of file
diff --git a/models/controller_dbo.cc b/models/controller_dbo.cc
index 982944b..c4f5c7d 100644
--- a/models/controller_dbo.cc
+++ b/models/controller_dbo.cc
@@ -2,10 +2,17 @@
 #include <cstring>
 #include <cstring>
 #include <trantor/utils/Logger.h>
+#include <sys/socket.h>
+#include <unistd.h>
 #include <helpers.h>
 #include "controller_dbo.h"
 #include "globals.h"
 
+controller_dbo::~controller_dbo()
+{
+    relay_dbo::free_list(this->relays);
+}
+
 static bool controller_db_update_insert(controller_dbo *controller, sqlite3_stmt *stmt)
 {
     int rc;
@@ -85,6 +92,7 @@ controller_db_select(sqlite3_stmt *stmt)
         if (s == SQLITE_ROW)
         {
             controller_dbo *new_controller = controller_db_select_mapper(stmt);
+            new_controller->relays = relay_dbo::get_by_simple("controller_id", new_controller->id, (intptr_t)&sqlite3_bind_text);
             row++;
 
             all_controllers = (controller_dbo**)realloc(all_controllers, sizeof(controller_dbo*) * (row + 1));
@@ -153,10 +161,18 @@ controller_dbo::to_json()
     controller_json["name"] = this->name;
     controller_json["id"] = this->id;
     controller_json["ip"] = this->ip;
-    controller_json["port"] = this->port;
+    //controller_json["port"] = this->port;
     controller_json["relay_count"] = this->relay_count;
     controller_json["active"] = this->active;
 
+
+    controller_json["relays"] = Json::arrayValue;
+
+    for(int i = 0; this->relays[i] != nullptr; i++)
+    {
+        controller_json["relays"].append(this->relays[i]->to_json());
+    }
+
     return controller_json;
 }
 
@@ -195,13 +211,32 @@ controller_dbo::get_by(helpers::sql_filter_builder **filters)
     return controller_db_select(stmt);
 }
 
+bool
+controller_dbo::command(int command_code, const char *payload)
+{
+    char port[6];
+    sprintf(port, "%d", this->port);
+
+    int controller_socket = helpers::open_tcp_connection(this->ip, port);
+
+    if(!controller_socket)
+    {
+        return false;
+    }
+
+    send(controller_socket, &command_code, 1, 0);
+    send(controller_socket, payload, strlen(payload), 0);
+    close(controller_socket);
+
+    return true;
+}
+
 void
 controller_dbo::free_list(controller_dbo **controllers_list)
 {
     for(int i = 0; controllers_list[i] != nullptr; i++)
     {
-        free(controllers_list[i]);
+        delete controllers_list[i];
     }
     free(controllers_list);
 }
-
diff --git a/models/controller_dbo.h b/models/controller_dbo.h
index ed6060f..c87b8c2 100644
--- a/models/controller_dbo.h
+++ b/models/controller_dbo.h
@@ -5,6 +5,7 @@
 #include <sqlite3.h>
 #include <json/value.h>
 #include <helpers.h>
+#include "relay_dbo.h"
 
 class controller_dbo
 {
@@ -16,6 +17,9 @@ public:
     bool active;
     int port;
     int relay_count;
+    relay_dbo **relays;
+
+    ~controller_dbo();
 
     bool
     update();
@@ -29,9 +33,6 @@ public:
     Json::Value
     to_json();
 
-    static void
-    free_list(controller_dbo **controllers_list);
-
     static controller_dbo**
     get_by_simple(const char *key, const void *value, intptr_t bind_func);
 
@@ -40,6 +41,12 @@ public:
 
     static controller_dbo**
     get_all();
+
+    bool
+    command(int command_code, const char *payload);
+
+    static void
+    free_list(controller_dbo **controllers_list);
 };
 
 
diff --git a/models/relay_dbo.cc b/models/relay_dbo.cc
index 5343788..bd8a1f3 100644
--- a/models/relay_dbo.cc
+++ b/models/relay_dbo.cc
@@ -6,6 +6,7 @@
 #include "relay_dbo.h"
 #include "globals.h"
 #include "controller_dbo.h"
+#include "schedule_dbo.h"
 
 static bool relay_db_update_insert(relay_dbo *relay, sqlite3_stmt *stmt)
 {
@@ -41,7 +42,7 @@ relay_db_select_mapper(sqlite3_stmt *stmt)
             case 'a': // active_schedule_id
                 strncpy(new_relay->active_schedule_id, (const char*)sqlite3_column_text(stmt, i), 33);
                 break;
-            case 'd': // controller_id
+            case 'c': // controller_id
                 strncpy(new_relay->controller_id, (const char*)sqlite3_column_text(stmt, i), 33);
                 break;
             case 'i':
@@ -81,6 +82,18 @@ relay_db_select(sqlite3_stmt *stmt)
         if (s == SQLITE_ROW)
         {
             relay_dbo *new_relay = relay_db_select_mapper(stmt);
+            schedule_dbo **schedules = schedule_dbo::get_by_simple("id", new_relay->active_schedule_id, (intptr_t)&sqlite3_bind_text);
+
+            if(!schedules[0])
+            {
+                free(schedules);
+                schedules = schedule_dbo::get_by_simple("id", "off", (intptr_t)&sqlite3_bind_text);
+                strcpy(new_relay->active_schedule_id, "off");
+            }
+
+            new_relay->active_schedule = schedules[0];
+
+            free(schedules);
             row++;
 
             all_relays = (relay_dbo**)realloc(all_relays, sizeof(relay_dbo*) * (row + 1));
@@ -150,6 +163,7 @@ relay_dbo::to_json()
     relay_json["number"] = this->number;
     relay_json["active_schedule_id"] = this->active_schedule_id;
     relay_json["controller_id"] = this->controller_id;
+    relay_json["active_schedule"] = this->active_schedule->to_json();
 
     return relay_json;
 }
diff --git a/models/relay_dbo.h b/models/relay_dbo.h
index 25f1678..5ead660 100644
--- a/models/relay_dbo.h
+++ b/models/relay_dbo.h
@@ -5,6 +5,7 @@
 #include <sqlite3.h>
 #include <json/value.h>
 #include <helpers.h>
+#include "schedule_dbo.h"
 
 class relay_dbo
 {
@@ -15,6 +16,7 @@ public:
     int number;
     char controller_id[33];
     char active_schedule_id[33];
+    schedule_dbo *active_schedule;
 
     bool
     update();