Proximity sensor

How can I develop a simple proximity sensor that will return the distance to the nearest object? Because IR proximity sensors are not
available in India...
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snipped-for-privacy@gmail.com wrote:

I live in a country where these sort of parts are difficult to buy locally. Why not order your sensor on-line and get it delivered. Its that easy. Making a sensor to report distance will require parts that you will probably need to import anyway.
Ian
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Proximity sensor with analog output. Voltage output varies with Distance. Electronics circuit can be setup to read in the voltage, which will convert them to distance.
I hope this answer your question.
-- Best Regards, Lim Siong Boon
snipped-for-privacy@yahoo.com.sg www.siongboon.com

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We have shipped the MaxSonar-EZ1 to India. Express mail takes about one week. We sell an analog output ultrasonic range finer. www.maxbotix.com
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