Hi Karthick,Lets fix it !! | Electronics › Electronics › Intruder Alarm › Hi Karthick,Lets fix it !! January 1, 2015 at 7:48 am #12486 AJISH ALFREDParticipant Hi Karthick, Lets fix it !! There is a short circuit shown between the emitter or transistor and 5V. Replace that short circuit path with a resistor of 330ohms or 1Kohms.
