Description
Power your automation projects with this reliable 2-Channel Relay Board with Optocoupler, perfect for controlling high-voltage AC or DC loads using low-voltage microcontrollers such as Arduino, Raspberry Pi, ESP32, and ESP8266. Whether you are building a smart home system, IoT gateway, or industrial automation controller, this module ensures safe, efficient, and flexible switching.
Each relay channel is protected by high-quality optocouplers, providing electrical isolation that prevents voltage surges from damaging your microcontroller or development board. The module is compatible with both high-level and low-level trigger signals, ensuring seamless integration with various development platforms.
For best performance, pair this relay module with our original ESP32 Development Board or Arduino Uno R3 Board—both available in our store. You can also explore our LoRa modules or OLED displays to build complete IoT solutions.
Key Features:
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2 Independent Relay Channels – Switch two separate devices simultaneously
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Optocoupler Isolation – Complete safety between control and load circuits
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High & Low-Level Trigger Support – Flexible for various microcontrollers
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Relay Output Capacity: 250V AC 10A / 30V DC 10A
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Indicator LEDs – Visual relay status display for easy testing
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Microcontroller Compatible – Works perfectly with ESP32 boards, Arduino Uno, Raspberry Pi, and others
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Screw Terminals – Secure connection for power and load circuits
Applications:
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Smart Home Automation – Ideal for controlling lights, fans, pumps, locks—can be integrated with Vihaan IoT Gateway solutions
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Industrial Equipment Control – Reliable for machinery and industrial automation
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IoT Projects – Combine with LoRa modules or ESP32 boards for remote switching
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DIY Electronics Projects – Robotics, sensors, and educational prototypes
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Remote Switching Systems – Build cloud-connected relays with ESP8266 NodeMCU boards
Specifications:
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Operating Voltage: 5V DC (12V variant also available)
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Relay Channels: 2
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Optocoupler Isolation: Yes
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Trigger Level: Configurable (High or Low)
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Load Capacity: AC 250V/10A, DC 30V/10A
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Indicator LEDs: Yes (per channel)
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Mounting Holes: Provided for easy panel or case mounting
Package Includes:
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1 x 2-Channel Relay Module with Optocoupler
Why Buy from Vihaan IoT Gateway?
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100% genuine and tested components
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Official GST invoice with every order
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Free shipping on orders above ₹500 – check out other essential IoT Components and Sensor Modules
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Trusted by makers, developers, and industries across India
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Excellent pre and post-sales technical support
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