diff --git a/Project/applications/smartcities/include/json.h b/Project/applications/smartcities/include/json.h
index f225f57..22d78b9 100644
--- a/Project/applications/smartcities/include/json.h
+++ b/Project/applications/smartcities/include/json.h
@@ -18,6 +18,7 @@
 #define JOIN_NO_FREE		0
 #define JOIN_FREE_MEM		1
 
+uint8_t register_sensor(sensor sens);
 char* prepare_json_observation_statement(char** data, uint32_t nObservations);
 char* prepare_json_register_statement(module mod, sensor sens);
 char* prepare_observation(char* observation, uint32_t length);
@@ -25,4 +26,4 @@ uint8_t send_json(char* statement, uint32_t length, char* provider_ID, char* sen
 uint32_t find_next_index(char* string, uint32_t length, char delimiter);
 char* join_strings(char* str1, char* str2, uint32_t len1, uint32_t len2, uint8_t free_mem);
 
-#endif
\ No newline at end of file
+#endif
diff --git a/Project/applications/smartcities/include/sensors.h b/Project/applications/smartcities/include/sensors.h
index 25b8771..6f09c80 100644
--- a/Project/applications/smartcities/include/sensors.h
+++ b/Project/applications/smartcities/include/sensors.h
@@ -6,7 +6,7 @@
 #include "i2c.h"
 #include "libwismart.h"
 #include "module.h"
-#include "json.h"
+//#include "json.h"
 
 #define		LIGHT_ADDR		0x39
 #define		DISTANCE_ADDR	0x01
@@ -17,7 +17,7 @@ typedef struct {
   char* description;
   char* type;
   char* unit;
-  char* additional_data;
+  char* additional_info;
 } sensor;
 
 uint8_t register_sensor(sensor sens);
@@ -56,8 +56,8 @@ typedef struct {
 } bmp085_callibration;
 
 uint16_t get_pressure_data(void);
-bmp085_callibration get_callibration_data(void);
-char* callibration_data_csv(bmp085_callibration parameters);
+bmp085_callibration get_pressure_callibration_data(void);
+char* callibration_pressure_data_csv(bmp085_callibration parameters);
 void init_pressure(void);
 
-#endif
\ No newline at end of file
+#endif
diff --git a/Project/applications/smartcities/json.c b/Project/applications/smartcities/json.c
index bac3d42..b2fc32f 100644
--- a/Project/applications/smartcities/json.c
+++ b/Project/applications/smartcities/json.c
@@ -1,5 +1,22 @@
 #include "json.h"
 
+uint8_t register_sensor(sensor sens)
+{
+        uint8_t result;
+        if(sens.ID == PRESSURE_ADDR)
+        {
+                sens.additional_info = callibration_pressure_data_csv(get_pressure_callibration_data());
+        }
+        char *statement = prepare_json_register_statement(mod,sens);
+        chHeapFree(sens.additional_info);
+        sens.additional_info = NULL;
+	char sensor_ID[3];
+	sprintf(sensor_ID,"%d",sens.ID);
+        result = send_json(statement,strlen(statement),mod.ID,sensor_ID);
+        chHeapFree(statement);
+        return result;
+}
+
 char* prepare_json_observation_statement(char** data, uint32_t nObservations)
 {
 	unsigned int i, length, observation_length;
@@ -163,4 +180,4 @@ char* join_strings(char* str1, char* str2, uint32_t len1, uint32_t len2, uint8_t
 		chHeapFree(str2);
 	}
 	return str; 
-}
\ No newline at end of file
+}
diff --git a/Project/applications/smartcities/ntp.c b/Project/applications/smartcities/ntp.c
index 9819c15..e3e3f77 100644
--- a/Project/applications/smartcities/ntp.c
+++ b/Project/applications/smartcities/ntp.c
@@ -3,7 +3,6 @@
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <errno.h>
 #include <math.h>
 #include <sys/time.h>
 
diff --git a/Project/applications/smartcities/sensors.c b/Project/applications/smartcities/sensors.c
index 749b44a..dca6d0e 100644
--- a/Project/applications/smartcities/sensors.c
+++ b/Project/applications/smartcities/sensors.c
@@ -4,21 +4,6 @@ sensor light_sensor = {LIGHT_ADDR, "Light sensor", "illumination", "lux",NULL};
 sensor ultrasound_sensor = {DISTANCE_ADDR, "Ultrasound sensor", "distance", "cm",NULL};
 sensor pressure_sensor = {PRESSURE_ADDR, "Pressure sensor", "pressure", "kPa",NULL};
 
-uint8_t register_sensor(sensor sens)
-{
-	uint8_t result;
-	if(sens.ID == PRESSURE_ADDR)
-	{
-		sens.additional_data = callibration_pressure_data_csv(get_pressure_callibration_data());
-	}
-	char *statement = prepare_json_register_statement(mod,sens);
-	chHeapFree(sens.additional_data);
-	sens.additional_data = NULL;
-	result = send_json(statement,strlen(statement),mod.ID,sens.ID);
-	chHeapFree(statement);
-	return result;
-}
-
 uint32_t get_light_data(void)
 {
 	uint32_t data = 0;
@@ -220,7 +205,6 @@ bmp085_callibration get_pressure_callibration_data(void)
 }
 char* callibration_pressure_data_csv(bmp085_callibration parameters)
 {
-	uint8_t i;
 	char *str = chHeapAlloc(NULL,sizeof(char)*(4*11-1));
 	memset(str,0x00,sizeof(char)*(4*11-1));
 	sprintf(str + strlen(str),"%d,",parameters.AC1);