3,3V 2 Channel High/Low Level Triger Relay Module with Optocoupler
High/Low Level Triger Relay Module
Features
Fault-tolerant design, even if the control line is broken, the relaay will not move;
Specifications
Module interface:
DC+: Connect to the positive pole of the power supply (voltage is relay 3.3V)
DC-: Connect to the negative pole of the power supply
IN: The relay can be controlled by high or low level
Relay output:
NO: Relay normally open interface, before the relay is vacant, it will be shorted to COM after picking up
COM: Relay Common Interface
NC: Normally closed relay interface. Before the relay is closed, it is short-circuited with COM.
High and low level trigger selection:
S1 is the high and low level trigger selection of relay 1;
When com is shorted to low, the corresponding relay is a low level trigger. When com is shorted to high, it is a high level trigger
Additional Information
Device
Relay Module
Type
High/Low | Level Triger
Elevate your projects with the BDD RELAY BOARD 2CH 3.3V, a versatile high/low level trigger relay module. This fault-tolerant design ensures reliable performance, allowing you to control devices effortlessly. Ideal for automation and control systems, it simplifies wiring and enhances your project's efficiency. Upgrade your setup today!