3,3V 1 Channel High/Low Level Triger Relay Module with Optocoupler
1 Channel High/Low Level Triger Relay Module
Features
Fault-tolerant design, even if the control line is broken, the relay 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
1 Channel | High/Low | Level Triger
The BDD Relay Board 1CH 3.3V is a reliable, high/low level trigger module designed for seamless control of electronic devices. With its fault-tolerant design, this relay ensures your system remains stable, even if the control line is interrupted. Perfect for DIY projects and automation, it offers flexible connectivity options and easy integration, making it an essential tool for hobbyists and professionals alike. Upgrade your electronic projects with this versatile relay module today!
