View Full Version : proximity sensor

04-05-2007, 04:01 PM
Hi I have bought a sensor numbered GP 202A
and another ON 2509 89

these are proximity sensor. If any body have any experience of using it, please do reply me. I am making a robot car.
please send it to my mail id: anirban.cse@gmail.com

04-08-2007, 12:28 AM
The 2509 is a reflective light sensor with built-in amplifier.
It is unnecessarily expensive , for a 5mm reflection.