
The 5V Single-Channel Relay Module with Optocoupler Isolation is an electronic switching board designed to control external electrical devices using a microcontroller or digital control signal. It features optocoupler isolation to help separate the control signal circuit from the relay driver circuit.
The module supports high-level and low-level triggering, providing flexibility for different control systems. It is suitable for Arduino projects, home automation, embedded systems, and other electronic switching applications.
Single-channel relay switching module
5V DC operating supply
Optocoupler isolation for the control circuit
Supports high-level and low-level triggering
Normally open (NO), normally closed (NC), and common (COM) contacts
Compatible with Arduino and other suitable microcontrollers
Screw terminals for convenient load connections
Suitable for controlling external electrical devices
Arduino and microcontroller projects
Home automation systems
Lighting control
Electrical appliance switching
Embedded control systems
DIY electronics and prototyping