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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by chibaba

  1. C

    human presence and smoke detection

    wow thanks a lot i didnt reason along that line that would mean one electric bulb remains on while the other bulbs which are used to represent office appliances like air conditioners go off
  2. C

    human presence and smoke detection

    please i need help designing my final year project. the project is meant for an office, the prototype i am to build is meant to turn off 2 or 3 bulbs connected together once the last occupant leaves the office. it also has a smoke detector which also turns off appliances once it detects smoke...

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