diff --git a/Communication/uart_communication_main.cpp b/Communication/uart_communication_main.cpp
index 6e08c6c..b9576ed 100644
--- a/Communication/uart_communication_main.cpp
+++ b/Communication/uart_communication_main.cpp
@@ -1,5 +1,12 @@
 #include "uart_communication.h"
 
+/*
+* Usage: telnet [ip] [port]
+* eg.: telnet 192.158.4.1 8080
+* To quit: ctrl + +
+*           q
+*/
+
 int main(void) {
     printf("Starting the loopback application...\r\n");