Sonoff RE5V1C smart switch / SO RE5V1C
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Code:SO-RE5V1C
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Weight:0.015 Kgs
Sonoff RE5V1C (SO RE5V1C) is an ultra-compact 5V DC Wi-Fi smart switch module featuring a dry contact (potential-free output). Designed for smart automation of garage doors, entrance gates, intercoms, PC power switches, and DIY projects. Supports Inching (pulse) mode to simulate button presses, powers via 5V DC wiring terminals (+5V/GND), and offers seamless remote control via the eWeLink app, Amazon Alexa, and Google Assistant without requiring a hub.
The Sonoff RE5V1C (SO RE5V1C) is an ultra-compact 5V DC smart relay module featuring a dry contact (potential-free output). Engineered for smart home automation of garage doors, entrance gates, barriers, intercom systems, PC power switches, and custom DIY projects. Supporting Inching (pulse) mode and remote management via the eWeLink app, it effortlessly integrates low-voltage systems into your smart ecosystem.
Target Audience (Who It Is For)
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Garage & Gate Owners: Ideal for remotely triggering garage doors and electric gates by supplying a short pulse signal.
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DIY Enthusiasts & Makers: Perfect for custom electronics projects, PC remote boot modifications, and low-voltage automation setups.
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Access Control Installers: Designed for smart integration with intercoms, electric strikes, door locks, and alarm panels.
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Smart Home Users: Anyone seeking an affordable solution to simulate a physical push-button press (dry contact) remotely.
Key Features
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Potential-Free Dry Contact (NO / COM / NC): Output terminals function as an isolated switch without outputting voltage, ensuring 100% compatibility with sensitive control boards.
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Inching (Pulse) & Self-Locking Modes: Configurable auto-off timer (from 0.5s to 3600s) to simulate button presses or standard toggle ON/OFF switching.
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5V DC Power Input: Powered directly via screw terminals (+5V / GND) for secure, permanent wiring connections.
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Remote & Voice Control: Full control from anywhere via the eWeLink app, as well as hands-free control with Amazon Alexa and Google Assistant.
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Local LAN Control: Ensures fast, reliable operation over your local Wi-Fi network even during internet outages.
Unique Advantages
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Micro Form Factor: Measuring just 34.5 × 27 mm, the board easily fits into garage door drive enclosures, PC cases, or junction boxes.
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High Switching Load Capacity: Handles heavy loads up to 10A / 250V AC or 10A / 30V DC on the relay contacts.
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Ultra-Low Power Consumption: Minimal standby current draw, ideal for 24/7 continuous operation.
Why Choose This Product
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Cost-Effective Garage Automation: Upgrades standard motorized gates or garage doors into smart devices for a fraction of the cost.
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Safe for Control Boards: Dry contacts guarantee no unwanted voltage is fed into your main control board, preventing damage.
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Secure Terminal Wiring: Direct screw terminal connections provide a solid physical link to your existing 5V DC power supply lines.
Frequently Asked Questions (FAQ)
Q: What is a "dry contact" (potential-free relay)?
A: A dry contact means the relay acts purely as an isolated mechanical switch (bridging or opening COM, NO, and NC contacts). It does not feed power from its input to the output terminals, ensuring safety for connected control circuits.
Q: How do I use the Sonoff RE5V1C for a garage door?
A: Connect the COM and NO terminals to the external push-button input on your garage door motor. Enable Inching mode (e.g., 0.5 or 1 second) in the eWeLink app. Triggering the switch will momentarily close the circuit for 1 second and open it—mimicking a physical wall button.
Q: How is the module powered?
A: The board requires a 5V DC power source connected directly to the +5V and GND wiring terminals.
Q: Is a smart hub required?
A: No. The Sonoff RE5V1C connects directly to your 2.4GHz Wi-Fi network via the eWeLink app without needing a hub.
Technical Specifications
| Parameter | Specification |
| Input Voltage | 5V DC (via +5V / GND wiring terminals) |
| Output Type | Dry Contact / Potential-Free (NO / COM / NC) |
| Relay Max Load | 10A / 250V AC or 10A / 30V DC |
| Wireless Protocol | Wi-Fi IEEE 802.11 b/g/n (2.4GHz) |
| Operating Modes | Inching (Pulse), Self-locking (Toggle) |
| App Support | eWeLink (iOS & Android) |
| Voice Assistants | Amazon Alexa, Google Assistant |
| Operating Temperature | 0°C ~ 40°C |
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Dimensions:34.5 × 27 × 15 mm
Who it’s for
The Sonoff 5V WiFi Relay is ideal for electronics enthusiasts and DIY project builders. These innovators often face the challenge of integrating remote WiFi control into their custom 5V low-voltage circuits and unique creations, where standard smart home solutions are either incompatible with 5V or too bulky.
It's also perfect for owners of low-voltage devices and users seeking personalized automation. They want to transform their existing 5V USB devices, small fans, or LED lighting into smart, remotely controllable components but struggle to find suitable products on the market.
Key features
Here is a list of 'Key Features' for the Sonoff 5V WiFi relay - SO RE5V1CL:
- Wireless Connectivity: Enables reliable remote device control through an integrated 2.4GHz Wi-Fi module (802.11 b/g/n standard), facilitating seamless integration into smart home systems.
- Universal 5V Power Supply: Operates with a low-voltage 5V DC power supply, ensuring ideal compatibility with microcontroller platforms like Arduino and Raspberry Pi for custom projects.
- Robust Relay Output: Features a single relay channel capable of switching electrical loads up to 10A at 250V AC or 10A at 30V DC, providing versatile control for various appliances.
- Compact Design: With miniature dimensions of approximately 32mm x 25mm x 17mm, the module easily fits into confined spaces and is suitable for embedding in various enclosures and casings.
- Smart Control via eWeLink: Allows full automation and control of connected devices through the intuitive eWeLink mobile application, including functions for timers, schedules, and scene creation.
Unique differentiators
Unique Differentiators
Want to effortlessly and securely transform any ordinary appliance into a smart device? The Sonoff 5V WiFi Relay (SO RE5V1CL) is engineered to surpass your expectations, offering features unavailable in standard alternatives.
5V Power Supply for Unmatched Versatility: Unlike most relays on the market that demand 12V or 220V power, the Sonoff SO RE5V1CL is the only 5V WiFi relay that can be directly powered by a USB source or a microcontroller (such as ESP8266/ESP32). This makes it the ideal choice for DIY projects, allowing you to create smart solutions with minimal effort and maximum flexibility. It is highest rated for compatibility with low-voltage systems and custom builds.
Smart Control, Anywhere, Anytime: While standard relays typically offer only manual operation, the Sonoff SO RE5V1CL provides you with full WiFi control. With the eWeLink app, you can manage connected devices from anywhere in the world, create schedules, set timers, and design custom scenarios. This is the easiest way to add smart capabilities to your electronic projects, seamlessly integrating them into your smart ecosystem with support for voice assistants like Google Home and Amazon Alexa.
Unrivaled Sonoff Reliability and Integration: As an integral part of the robust Sonoff ecosystem, the SO RE5V1CL guarantees seamless integration and proven reliability. Unlike unreliable, non-branded devices, this relay offers optimized performance and a stable connection, making it the preferred choice for smart homes and automation enthusiasts seeking dependable solutions.
Comparison of Sonoff 5V WiFi Relay (SO RE5V1CL) vs. Standard Alternatives:
| Feature | Sonoff 5V WiFi Relay (SO RE5V1CL) | Standard Alternatives |
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| Power Supply Voltage | 5V (USB Compatible) | 12V, 24V, 220V |
| Control Type | WiFi (App/Voice) | Manual (Button/Switch) |
| Smart System Integration | eWeLink, Google Home, Alexa | Not Supported |
Why this product
Why This Product?
Are you struggling to remotely control or automate your 5V devices, like IoT gadgets or DIY projects? The common hurdle is finding a simple, reliable solution for intelligent low-voltage control without getting bogged down in complicated setups. We understand the need for seamless integration.
The Sonoff 5V WiFi Relay offers the perfect answer. It effortlessly transforms your standard 5V appliances into smart devices, enabling full control via the intuitive eWeLink mobile app. Manage your projects from anywhere, at any time, bringing unprecedented flexibility to your fingertips.
Choose Sonoff for its renowned, proven technology and extensive compatibility. This compact WiFi relay ensures stable performance and straightforward integration into your smart home or custom DIY systems. Gain secure, reliable control over all your 5V circuits with confidence.
FAQ
Discover everything you need to know about the versatile Sonoff 5V WiFi Relay (SO RE5V1C) with our comprehensive FAQ section. Get quick answers to your most common questions and unlock the full potential of your smart home projects.
Frequently Asked Questions for Sonoff 5V WiFi Relay (SO RE5V1C)
What is a Sonoff 5V WiFi Relay?
Question: What is a Sonoff 5V WiFi Relay? -> Answer: A Sonoff 5V WiFi Relay is a smart switch enabling remote control of 5V DC devices via a Wi-Fi network. It's perfect for DIY automation projects, offering convenience and control from anywhere using the eWeLink mobile application.
How do I connect and set up a Sonoff 5V WiFi Relay?
Question: How do I connect and set up a Sonoff 5V WiFi Relay? -> Answer: Connect the Sonoff 5V WiFi Relay to a 5V DC power supply and your chosen device. Download eWeLink, register, and follow device addition instructions. Press the relay's pairing button until the LED blinks, then configure it via the app.
Is the Sonoff 5V WiFi Relay compatible with other smart home systems?
Question: Is the Sonoff 5V WiFi Relay compatible with other smart home systems? -> Answer: Yes, the Sonoff 5V WiFi Relay is compatible with eWeLink and supports voice control via Amazon Alexa and Google Assistant. It integrates well into various DIY smart projects, offering excellent flexibility for home automation setups.
What devices can I control with a Sonoff 5V WiFi Relay?
Question: What devices can I control with a Sonoff 5V WiFi Relay? -> Answer: You can use the Sonoff 5V WiFi Relay to control various 5V DC devices. Examples include LED strips, small fans, USB-powered gadgets, microcontrollers like Raspberry Pi or Arduino, or other projects requiring low-voltage remote operation.
What power supply is required for the Sonoff 5V WiFi Relay?
Question: What power supply is required for the Sonoff 5V WiFi Relay? -> Answer: The Sonoff 5V WiFi Relay requires a stable 5V DC power supply. This can be sourced from a USB adapter, an external 5V power unit, or directly from a 5V DC output. Always ensure the power supply is adequate for both the relay and its connected device.
