DIY PIR Switch for Kitchen/Toilet
Today I made a PIR sensor for toilet. Used ready made modules instead of Circuit designing as wanted it early and easy to make.
I always forget to shutdown Toilet light and fans. To save electricity I made couple of it later. Costed me around INR 250/- each.
following is the schematic I mase for connecting modules
- SR 501 (PIR sensor module)
- Relay module
- 5v power supply (pcb module)
- Small plastic box (white)
Note: Re trigger setting jumper mode selected on pir. Adjusted delay on sensor to 10 sec, Set sensitivity as per your environment.
Additional LDR can be added on PIR sensor module for parallel light sensing based Movement detection and switching control.