DIY IR Proximity Detector

January 25, 2010 by admin
Filed under: electronics 

Hi friends…

This sensor module called proximity detector, widely used in robotics and other electronic proximity detection purposes. It is very simple to make and use.There is no effect of ambient light on the operation of sensor as a 38KHZ modulated IR pulses are used.

555 Timer is used to generate frequency of 38 KHz and very familiar IR detector module TSOP 1738 is used to detect the 38KHz IR pulses.

Circuit Diagram – Transmitter

38Khzastable

Circuit Diagram Receiver -

tsop_rx

Suggested Assembly -

sam

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Comments

6 Comments on DIY IR Proximity Detector

  1. singleman on Fri, 5th Feb 2010 8:20 pm

    2. please program for code lock circuit

  2. kapil on Thu, 4th Mar 2010 12:56 am

    3. do we use more seprate 555 for all sensor or we use 1 555 for all sensor

  3. admin on Thu, 4th Mar 2010 8:36 am

    4. you can use a single 555 timer for many (3-4) sensors. In that case switch each LED using transistors.

  4. khanh on Tue, 20th Jul 2010 10:33 pm

    5. distance transmitter of IR when a object in front of it

  5. khanh on Tue, 20th Jul 2010 10:36 pm

    6. If has a object in front of IR transmitter when distance IR transmitter will how?

  6. admin on Wed, 21st Jul 2010 5:59 am

    7. 15cm

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