5V 2-Channel Relay Module with Optocoupler

The 5V 2-Channel Relay Module is a reliable and versatile relay interface board designed to control high-voltage and high-current devices using low-voltage control signals from microcontrollers and embedded systems. With two independent relay channels, it enables safe and efficient switching of AC and DC loads, making it ideal for automation, robotics, IoT, and industrial control applications.

The module features optocoupler isolation to protect the control circuitry from electrical noise and voltage spikes, ensuring stable and reliable operation. It is compatible with both 3.3V and 5V logic levels, allowing seamless interfacing with popular development boards such as Arduino, ESP8266, ESP32, Raspberry Pi (via suitable interface), AVR, PIC, ARM, 8051, DSP, and PLCs.

Each relay is capable of switching loads up to 250V AC at 10A or 30V DC at 10A, making it suitable for controlling lights, fans, motors, pumps, solenoids, household appliances, and other electrical equipment.

Features:

• Dual independent relay channels
• 5V operating voltage
• Compatible with 3.3V and 5V logic signals
• Optocoupler isolation for improved electrical protection
• High-level trigger input
• LED indicators for power and relay status
• Transistor-driven relay circuit for reliable switching
• Standard screw terminals for easy wiring
• Supports switching up to 250V AC / 10A or 30V DC / 10A
• Compatible with Arduino, ESP32, ESP8266, AVR, PIC, ARM, PLC, 8051, DSP, and other microcontrollers