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  1. people seem not interested in it?[table][tr][td][/td][/tr][/table]
  2. DIY anti-theft circuit with infrared version 2 Here is the circuit with infrared anti-theft version 2 I have just completed You can put it at the door in your home or anywhere. circuit broadcast receiver circuit Obtained circuit enclosed in a small box circuit design more compact development and use of two infrared light to increase its ability to scan inside it has built a siren This should be in your signature (Moderator) see more at:

    Laser alarm system not working correctly..

    I also have a project on laser alarm system. I will soon update it here.

    pressure sensor

    thank you this is what I was looking for