Gravity: Easy Relay Module Category_Display & LED/7-Segments Led Displays * Power (operating voltage): 4

* Power (operating voltage): 4

Design your own activity or motion tracker with all the data

the switching frequency automatically changes to maintain high efficiencies

This is a metal DC geared motor

Gravity: Easy Relay Module Category_Display & LED/7-Segments Led Displays * Power (operating voltage): 4The traditional relay module has complicated wiring and is not friendly to beginners or students. The simple switch module simplifies the wiring method for connecting traditional relays. The input end is equipped with an adapter, which can be compatible with most power sources, battery boxes, DC power supplies, power banks, etc. While simplifying the wiring mode, the functions of relays NC and NO are retained, and the normally open and normally closed