Proximity sensor - Weekend project

Discussion in 'The Projects Forum' started by Meoiswa, Jul 29, 2008.

  1. Meoiswa

    Thread Starter New Member

    Jul 29, 2008
    Hello, this is my first post. I've been looking around in several web pages and i couldn't find anything like what i want to do. I want to do a proximity sensor system that detects the distance between 2 transmitters, with a light that glows more or less, or a LED grid (a previous project, a conductivity meter, was done with one using a chip).
    I don't care witch technology it uses, all i want is to:

    1- be portable and small
    2- be simple and battery-friendly
    3- Have a good range (something logical, because i found a prox. sensor that works the way i want, but its with infrared and the range is 6-9 INCHES) and, if possible, not need visual contact with the other transmitter.

    Remember this is a simple weekend project, there's no need to make it something impressive.
  2. Wendy


    Mar 24, 2008
    Sounds a lot like a stud finder.
  3. jpanhalt


    Jan 18, 2008
    It is not clear to me what you want. What range do you need?

    Was the 6 to 9 inches with infrared too far or too short a distance?

    If the objects are not line of sight, what is the medium through which detection must occur?

    Finally, you mention finding the distance between two transmitters. What are they transmitting, e.g., sound, light, vibrations, RF, heat?