This project aims to give you a modern and complete IoT door alarm to deploy on your esp32. It has been built with esp32-arduino framework. It is based on the Magnetic Hall effect, which is why a ...

An approaching magnet will disconnect the contact and pull away from the switching contact ... Prisons/Jails and Zoological gardens. In SMART Homes as Door Tamper Alarm. This project gives a ...

The iron core increases the coil’s magnetic ... switches and door locks that can be controlled remotely; to hold open fire doors – the electromagnet switches off when a fire alarm is sounded ...