The device emits a continuous beeping sound to remind you if the car lights are on and the door is open, preventing you from accidentally leaving them on.
Upgrade your control system for various appliances such as garage doors, chicken coop doors, car central locking systems, and more with this versatile DC motor switching module.
A very good designed circuit of a stable adjustable DC regulator using IC LM317T. LM317T is a very famous IC and supporting input voltage is from 3 volt to 40 volt DC and delivers a stable output between 1.25 volt to 36 volt DC.