The reed switch is an electrical switch operated by an applied magnetic field. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. It consists of a pair of...
MF RC522 is a highly integrated transmission module for contactless communication at 13.56 MHz. This transmission module utilises an outstanding modulation and demodulation concept completely integrated for different kinds of contactless communication methods and protocols at 13.56 MHz.
Small and exquisite appearance, it is convenient to carry.
Full-automatic induction, excellent sensitivity.
One kind of trigger modes, it is easy to operate.
Stable reliability, ultra low voltage operating mode.
It can be widely used in many kinds of automatic induction electric equipment.
Suitable for movement detection, automatic control, proximity...