Power functions proximity sensor

[Zerobricks]

Just asking, would you guys like to see an optic sensor, which could turn on/off motors? It would work via infrared, and it would have a knob, which would allow you to set the switching distance.

Here is my idea how it could look like.

Edited September 30, 2010 by DLuders

[DLuders]

Sure, but are you aware of the HiTechnic "Electro Optic Proximity Detector" (EOPD)? It can "Accurately detect objects and small changes in distance to a target with the HiTechnic EOPD. The EOPD or Electro Optical Proximity Detector uses an internal light source to detect the presence of a target or determine changes in distance to a target. By generating its own light source, the EOPD is able to filter out all external light signals so as a robot moves from bright areas to dimmly lit areas or through shadows, the EOPD automatically compensates and only returns a signal based on its own light source. Targets can be accurately detected over distances up to about 8 inches (20 cm), depending on the target size, shape and reflective qualities."

[JopieK]

well, I'm working on a concept that uses arduino together with PF IR. I have my working train almost ready (PF part works well, only the motor driver needs testing). A proximity sensor wouldn't be too bad to implement for such a device.

[Jetro]

I'd love to see some "smart" sensors for PF. Granted, there is a plethora of sensors for the NXT, but building an NXT into a Technic model and then programming it is quite a bit more complicated than the many possibilities you could have with "mechanically" programmed sensors.

I like the idea of a know on the distance sensor to set the resolution/distance it measures.