Its not working :(

I have managed to sort out the coding. Even though, there aren't no problems in the coding, my Arduino kit doesn't work: the LED bar graph light is supposed to light up whenever near a device that generates EMF (Electromagnetic Filed Radiation) but doesn't. I have tried many things to overcome this situation like; tried different LED lights, tried different resistors, thicker wire.. but its simply not happening. I dont know whether I have done something wrong with circuit it self or if its the arduino application code :S