3 Replies Latest reply on Oct 4, 2015 8:57 AM by dougw

    NEED A GUIDANCE IN SOME SENSORS.

    prince587

      I need a sensor that can detect the motion from a long distance  I am using HCSR04 which has a range hardly to 7cm but need a range of 10-20 meters. If any one has any Idea which sensor to use then please let me know.