Update README.md

README.md

@@ -11,3 +11,19 @@ This repository is about Arduino with motion senser and diode sensor
 - Jumper Male-Female, Female-Female
 
 ## Example sage
+
+
+## How it work
+1. Let begin with turn on switch.
+2. Everthing will set up.
+3. Motion sensor will scan if there has something move on motion area (180 degree).
+  - Buzz sensor will activated
+  - Esp8266 will send message to user
+  - OLED display will show text found people
+4. If not nothing happend.
+
+## Benefits
+1. Prepare for safety.
+2. your personal property will be safe.
+3. High security
+