Burglar Alarm Activated by a Pressure Sensor

I had a lot of fun making this. Thank you, Aurora, for showing me how to do all this.


21 Responses to “Burglar Alarm Activated by a Pressure Sensor”
  1. Aurora says:

    Wow – that sounds interesting! Can you send me a picture? mailto:[email protected]

  2. serenamae4 says:

    Tried the burglar alarm and for some reason, the light came on when the close pin was open and off when the tacks touched. Don’t have any idea why that happened!

  3. JD says:

    Good work!!!!!

  4. Leanne Oberleuter says:

    Loved it Harmon!

  5. Michael Green says:

    I enjoyed this demonstration, Harmon…….it has given me an idea for keeping the dogs away from our strawberry plants. Good effort.

  6. Nita Taylor says:

    Another fantastic experiment! Keep up the great work! If you can understand all that at your age, you’re well on your way to becomming a scientist/professor/electrician etc. I need one of those for my home.

  7. Doltun says:

    Well Done!! The World is your Oyster!

  8. Liza says:

    Smart Boy!! Keep up the Good work!

  9. Clayton Seeto says:

    Fascinating project Harmon. You’re doing great!

  10. Cecilia Seeto says:

    Good presentation Harmon!

  11. Denise Vine says:

    Congraulation Harmon, keep up the good work

  12. Katelyn & Jacinta. F. says:

    Hi Harmon,
    That’s amazing. Maybe it could be used as a door bell too; if does not send mum crazy.

  13. Judy Seeto says:

    At long last, we’ve got an engineer at large. Well done.


  14. Deniece Martin says:

    Good work Harmon, keep up the good work.

  15. Michael Ibbotson says:

    Well thought out Harmon and watch out Mr Burglar.

  16. Sylvia Cheong says:

    Harmon your a clever boy. I hope one day you can teach me.

  17. Esther Dasler says:

    Wonderful job, little Scientist!

  18. Jade Schafer says:

    I forgot to rate it!!!

  19. Jade Schafer says:

    I need one of those! Excellent job little scientist!!

  20. Neta Shea says:

    Very clever. You’ll make a good scientist.

  21. Jason Kuffman says:

    I am very impressed Harmon! Keep up the good work!


Have a question?

Tell us what you're thinking...

You must be logged in to post a comment.