Specifications:

• There are isolation slots in the control zone and load zone.
• With power and relay action indication, it lights up when connected, and disconnects when disconnected.
• When the signal input has a signal, the common and common terminals will jump.
• It can be used not only as a microcontroller development board module, but also as a home appliance control.
• It can control not only DC or AC signals, but also 220V AC loads.
• Has permanent opening and closing vent contact.
• It is convenient to connect the blue KF301 terminal access control cable.

Module interface:

• VCC: Connect 5V power supply positive
• GND: Connect 5v negative power supply
• IN: Relay module signal trigger terminal (active low level trigger), drive current at least 4mA
• COM: Control circuit is grounded and connected to GND