➢Step descriptions:

✦Step 1:-connect the pir sensor to arduino vcc

✦Step 2:-connect the pir output to arduino 4 number pin

✦Step 3:-connect the pir ground to arduino ground

✦Step4:-connect the relay vcc to arduino 5volt

✦Step5:-connect the relay output to arduino 2 number pin

✦Step6:-connect relay ground to arduino ground

✦Step7:-connect the bulb to relay to common and no

Product list

『Arduino uno』   view more: https://www.utsource.net/sch/arduino%20uno

『Relay module』 view more: https://www.utsource.net/sch/relay%20module

『Pir sensor』  view more: https://www.utsource.net/sch/Pir%20sensor

『Wire』 view more: https://www.utsource.net/sch/wire%20jumper

『Bread board』Bread board  view more: https://www.utsource.net/sch/bread%20board

Video on Youtube: