diff --git a/project/Assigner/assigner.c b/project/Assigner/assigner.c
index 7ba663677..e4e024175 100644
--- a/project/Assigner/assigner.c
+++ b/project/Assigner/assigner.c
@@ -14,8 +14,6 @@
 #include "../common/supermarket_net.h"
 #include "assigner_fun.h"
 
-#define LOG_MODULE "Assigner"
-#define LOG_LEVEL LOG_LEVEL_INFO
 #define OPENING_PERIOD (300*CLOCK_SECOND)
 
 
@@ -45,7 +43,7 @@ static void msg_recv(const void* data, uint16_t len, const linkaddr_t* source_ad
 			handle_battery_msg(src,data);
 			break;
 		default:
-			printf("Invalide type! This message is not for the Assigner");
+			printf("Invalide type! This message is not for the Assigner\n");
 			break;
 	}
 
diff --git a/project/Assigner/assigner_fun.c b/project/Assigner/assigner_fun.c
index d011d82a0..bb48cc57a 100644
--- a/project/Assigner/assigner_fun.c
+++ b/project/Assigner/assigner_fun.c
@@ -9,9 +9,6 @@
 #include "../common/supermarket_net.h"
 #include "assigner_fun.h"
 
-#define LOG_MODULE "App"
-#define LOG_LEVEL LOG_LEVEL_INFO
-
 
 //function invoked in order to look for the most charged cart to assign to the new arrived client	
 cart* cart_selection()
@@ -40,6 +37,11 @@ bool insert_cart(uint8_t new_req_battery, linkaddr_t mac_cart_addr)
 		printf("Association Failed");
 		return false;
 	}
+	cart* c = cart_list;
+	while(linkaddr_cmp(&(c->cart_address),&mac_cart_addr) == 0)
+		c = c->next;
+	if(c)
+		printf("Cart already associated!"\n);
 	else
 	{
 		new_arrived_cart->cart_address = mac_cart_addr;
@@ -47,7 +49,7 @@ bool insert_cart(uint8_t new_req_battery, linkaddr_t mac_cart_addr)
 		new_arrived_cart->assigned = false;
 		new_arrived_cart->next = cart_list;
 		cart_list = new_arrived_cart;
-		LOG_INFO("Nuovo carrello inserito con mac_address: ");
+		LOG_INFO("New cart added with mac_address: ");
 		LOG_INFO_LLADDR(&(new_arrived_cart->cart_address));
 		printf("\n");
 	}
diff --git a/project/Assigner/assigner_fun.h b/project/Assigner/assigner_fun.h
index 4fd5f300f..aa626457a 100644
--- a/project/Assigner/assigner_fun.h
+++ b/project/Assigner/assigner_fun.h
@@ -6,6 +6,8 @@
 #include <stdlib.h>
 #include "sys/log.h"
 
+#define LOG_MODULE "Assigner"
+#define LOG_LEVEL LOG_LEVEL_INFO
 
 typedef struct cart
 {
diff --git a/project/common/product.h b/project/common/product.h
index 4d75e9494..0231d6b53 100644
--- a/project/common/product.h
+++ b/project/common/product.h
@@ -4,6 +4,6 @@
 typedef struct product_t {
     uint32_t product_id;
 	char expiration_date[8]; // gg/mm/yy
-	float price;
+	uint32_t price;
 } product_t;
 #endif
diff --git a/project/product/product.c b/project/product/product.c
index 20b48dec7..4d7e51dea 100644
--- a/project/product/product.c
+++ b/project/product/product.c
@@ -21,9 +21,9 @@
 static linkaddr_t dest_addr = {{0x00, 0x12, 0x4b, 0x00, 0x0f, 0x24, 0x18, 0x04}};
 
 product_t product_list[] = {
-	{ 1, "21/12/19", 1.05 },
-	{ 2, "12/05/19", 3.25 },
-	{ 3, "05/05/21", 2.50 }
+	{ 1, "21/12/19", 105 },
+	{ 2, "12/05/19", 325 },
+	{ 3, "05/05/21", 250 }
 };
 
 PROCESS(product_proc, "product random generator");
@@ -38,7 +38,7 @@ void scan_product(product_t* p){
 	nullnet_len = sizeof(m);
 
 	NETSTACK_NETWORK.output(&dest_addr);
-	LOG_INFO("Product id [%d] scanned from ", (int)p->product_id);
+	LOG_INFO("Product id [%d, %d] scanned from ", (int)p->product_id, (int)p->price);
 	LOG_INFO_LLADDR(&dest_addr);
 	LOG_INFO_("\n");
 }