HC-SR501 with LDR attached to it.

Other Hardware Sensors
2

Here what I found so far:

  1. Very informative youtube
    Adding a light sensor to a PIR module. - YouTube
  2. I soldered the LDR and took a wire between R3 and the LDR ( see schematic ).
  3. used the above sketch as is,just adding println to display ldr value and taking a wire to A4.

I am getting very low LDR value and the module is NOT responsive as it should be..

Any Ideas ???.