SMART BLIND STICK

HELLO GUYS,
THIS IS SANSKAR AND I AM HERE REPRESENTING MY SMART BLIND STICK.
THE MAIN MOTIVE TO MAKE THIS BLIND STICK IS TO HELP BLIND PEOPLES,SUCH THAT THEY CAN MOVE FROM ONE PLACE TO ANOTHER,ATLEAST IN THERE RESPECTIVE HOMES.
SO I AM PROVIDING THE WORD PRESENTATION IN WHICH YOU CAN UNDERSTAND WHAT THE BLIND STICK IS AND HOW IT IS MADE.
IN THIS PRESENTATION, REQUIRED COMPONENTS, CIRCUIT DIAGRAM ARE GIVEN.
LINK TO PRESENTATION :
 CLICK HERE

VIDEO:

SOME IMAGES:

RAIN ALARM

THE BASIC COMPONENTS TO MAKE RAIN ALARM:

1. BUZZER
2. TRANSISTOR(BC547)
3. LED
4. POWER SOURCE{ UP TO 9V}
5. ANY SMALL METAL PLATES (YOU CAN  ALSO USE TWO KEYS)

CIRCUIT DIAGRAM LINK BELOW.
CIRCUIT DIAGRAM


VIDEO(via breadboard):

PLEASE SHARE YOUR COMMENTS.