Hi Raju,PIR is a motion | Microcontroller › 8051 › AUTOMATIC ROOM LIGHT ON / OFF WITH THE PRESENCE OF HUMAN › Hi Raju,PIR is a motion July 29, 2013 at 4:56 am #10232 AJISH ALFREDParticipant Hi Raju, PIR is a motion sensor only. You can consider that also if it fits your implementation requirements.
