Proximity Sensor to display LED color pattern.

Replies

• 

  gohm

  Not really my area, however how about an IR occupancy sensor hooked up to a speed controller and a servo? As the IR return rate increases due to closing distance, the speed controller would operate the servo which would switch your color. You could also hook it up to a x & y axis device (think tiny theramin) that would automatically ajust color based on spacial location.
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  reachrkata

  I don't know about IR, but I surely know that Ultrasound is used for distance measurements in parking assist systems of cars. Its simple. Just use the distance data measured to control the LED.
  I would suggest against servos. You anyway would using a uC to measure the distance. You the same to control the PWMs to the RGB LED, whereby you can give many colour combos.
  
  -Karthik
  😁
• 

  ericlp

  Hmmm, this sounds like an interesting project ... any updates on this?
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  khooper

  So, it’s surprising that cars don’t have proximity sensors at the back to tell you when you’re too close to something. I think that some “luxury” cars do, but isn’t a proximity sensor something that could benefit everyone? Wouldn’t it make reversing so much easier for drivers, inexperienced or otherwise?
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  sauravgoswami

  by taking the reference from proximity sensors,you can use comparator to control your LEDS.