Dual Button Unit
DUAL BUTTON has two buttons with blue and red color. Both buttons have the same two output status: pressed and released.
RFID Unit
This unit can read RF cards and tags. It has MFRC522 chip, which operates in the 13.56 MHz frequency band.
ToF sensor unit
ToF (Time of Flight) Ranging Unit resolves distance between the emit point and the reach point of a subject. Measure absolute distances up to 2 m (about 6.5 feet).