1. Product Overview
The Shelly Plus Uni is a compact, smart Wi-Fi and Bluetooth-controlled module designed for integration into low-voltage systems. It enables advanced automation and monitoring capabilities for various AC and DC applications, specifically supporting 8-24 VAC, 9-28 VDC, and 5 VDC. This device also functions as a Wi-Fi range extender and Bluetooth gateway, enhancing connectivity within your smart home ecosystem.
Image 1.1: Shelly Plus Uni module and its retail packaging, illustrating its compact design and universal Wi-Fi sensor input capabilities.
The module is engineered to transform traditional, non-smart appliances into remotely controllable devices, eliminating the need for complete replacements. It supports dry contacts, precise voltage measurement, pulse counting, and offers a versatile sensor interface. Its scripting capabilities allow for complex automation scenarios.
Image 1.2: Diagram highlighting key features of the Shelly Plus Uni, including Dry Contacts, Precise Voltmeter, Connectivity, Pulse Counting, Sensor Interface, and Scripting Capabilities.
2. Safety Information
- Electrical Safety: Installation and wiring should only be performed by a qualified electrician or person with adequate knowledge of electrical systems.
- Voltage Compatibility: Ensure the power supply voltage matches the device's specified operating range (8-24 VAC, 9-28 VDC, or 5 VDC). Connecting to incorrect voltage may damage the device and pose a safety risk.
- Environmental Conditions: Do not expose the device to direct sunlight, rain, or moisture. Operate within the specified temperature range (Upper Temperature Rating: 105 Degrees Fahrenheit).
- Disconnection: Always disconnect the power supply before performing any installation, wiring, or maintenance on the device.
- Intended Use: Use the device only for its intended purpose and in accordance with this manual. Any modification or unauthorized use is prohibited.
3. What's in the Box
Upon opening the Shelly Plus Uni package, you should find the following items:
- 1 x Shelly Plus Uni Module
- 1 x User Manual
4. Technical Specifications
| Feature | Specification |
|---|---|
| Model Number | 3800235265710 |
| Brand | Shelly |
| Connectivity | Wi-Fi, Bluetooth |
| Power Supply | 8-24 VAC, 9-28 VDC, 5 VDC |
| Inputs | 2 Digital, 1 Analog |
| Sensor Support | 1-Wire sensors (e.g., DS18B20, DHT22 via Shelly Plus Add-on) |
| Special Features | Precise Voltmeter, Pulse Counting, Dry Contacts, Scripting Capabilities |
| Product Dimensions (L x W x H) | 1.46 x 1.65 x 0.63 inches (37 x 42 x 16 mm) |
| Item Weight | 0.35 ounces (10 Grams) |
| Upper Temperature Rating | 105 Degrees Fahrenheit |
| Certifications | CE, RoHS |
Image 4.1: Physical dimensions of the Shelly Plus Uni module, showing its compact size of 42mm by 37mm.
Image 4.2: Close-up of the Shelly Plus Uni board, highlighting its two digital and one analog inputs, and support for 1-Wire sensors, suitable for low-voltage AC and DC applications.
5. Installation and Wiring
Important: Before proceeding with installation, ensure the main power supply to the circuit you intend to connect the Shelly Plus Uni to is switched off. Consult a qualified electrician if you are unsure about any steps.
5.1. Wiring Diagram Overview
The Shelly Plus Uni is designed for low-voltage applications. It features terminals for power input, dry contacts for output control, and dedicated pins for sensor connections (analog, digital, 1-Wire). Refer to the diagram on the product packaging or the device itself for specific pinout details.
Image 5.1: The Shelly Plus Uni module, showing its various connection points for dry contacts, power, and sensor interfaces.
5.2. General Installation Steps
- Power Off: Disconnect the power supply to the circuit where the Shelly Plus Uni will be installed.
- Connect Power: Wire the appropriate low-voltage AC or DC power supply to the designated power input terminals on the Shelly Plus Uni.
- Connect Outputs (Dry Contacts): Connect the dry contact outputs (OUT1, OUT2) to the device you wish to control. These contacts act as a switch and do not provide power.
- Connect Inputs: If using digital or analog inputs, connect your sensors or switches to the IN1, IN2, and ANALOG IN pins as required.
- Connect 1-Wire Sensors: For 1-Wire sensors, connect them to the dedicated 1-Wire data and ground pins.
- Secure Device: Place the Shelly Plus Uni in a suitable, protected location, ensuring it is not exposed to moisture or extreme temperatures.
- Power On: Restore power to the circuit. The device should power on and be ready for initial setup.
6. Initial Setup and App Control
To fully utilize the Shelly Plus Uni, it needs to be connected to your Wi-Fi network and integrated with the Shelly Smart Control App.
6.1. Downloading the Shelly Smart Control App
Download the official Shelly Smart Control App from your device's app store (available for Android and iOS). The app allows you to control your Shelly devices remotely, receive notifications, and configure settings.
Image 6.1: A smartphone displaying the Shelly Smart Control App interface, used for managing smart home devices.
6.2. Device Pairing
- Ensure your Shelly Plus Uni is powered on and within range of your Wi-Fi network.
- Open the Shelly Smart Control App and create an account or log in.
- Follow the in-app instructions to add a new device. The app will guide you through connecting the Shelly Plus Uni to your Wi-Fi network.
- Once connected, you can name your device and assign it to a room for easier management.
7. Operation
The Shelly Plus Uni offers versatile operation modes, allowing you to control connected devices and monitor sensor data through the Shelly Smart Control App or via voice assistants.
7.1. Remote Control via App
Through the Shelly Smart Control App, you can:
- Toggle the dry contact outputs (OUT1, OUT2) to turn connected devices on or off.
- Monitor real-time data from connected sensors (e.g., voltage, pulse counts).
- Set schedules and timers for automated actions.
- Create scenes that combine multiple Shelly devices for complex automation.
- Receive instant notifications for triggered events, such as a doorbell ring or a gate opening.
Image 7.1: An example scenario where the Shelly Plus Uni sends a smartphone notification when a doorbell rings, demonstrating its ability to integrate traditional systems into a smart home.
7.2. Voice Control and Compatibility
The Shelly Plus Uni is compatible with popular voice assistants like Amazon Alexa and Google Home, allowing for hands-free control of your connected devices.
- Amazon Alexa: Enable the Shelly skill in the Alexa app and link your Shelly account. You can then use voice commands such as "Alexa, turn on the garage door."
- Google Home: Link your Shelly account in the Google Home app. Use commands like "Hey Google, close the gate."
Image 7.2: Illustration of Shelly Plus Uni's full compatibility with Google Home, Alexa, Android, and iOS devices, enabling broad smart home integration.
8. Sensor Interface and Advanced Applications
The Shelly Plus Uni's robust sensor interface allows for integration with various types of sensors, enabling sophisticated monitoring and automation.
8.1. Digital and Analog Inputs
The module features two digital inputs and one analog input. These can be used to connect a wide range of sensors or switches to monitor environmental parameters or trigger actions.
- Digital Inputs: Ideal for binary states (on/off), such as door/window contacts, push buttons, or motion sensors.
- Analog Input: Suitable for sensors that provide a variable voltage output, allowing for measurement of parameters like light intensity, temperature (with appropriate sensors), or water levels.
Image 8.1: Depiction of Shelly Plus Uni's capability to utilize digital or analog inputs for measuring parameters and creating automation based on sensor data, often associated with Arduino-compatible sensors.
8.2. 1-Wire Sensor Support
The Shelly Plus Uni supports 1-Wire sensors, such as DS18B20 temperature sensors or DHT22 temperature and humidity sensors (often requiring a Shelly Plus Add-on for full functionality). This allows for precise environmental monitoring.
8.3. Use Cases
The advanced sensor interface enables various applications:
- Garden Automation: Monitor soil moisture or temperature to automate irrigation systems.
- Water Heater and Pipes: Detect leaks or monitor water temperature.
- Pool Automation: Control pumps or monitor water parameters.
- Motion-Controlled Lights: Integrate motion sensors to automate lighting based on presence.
Image 8.2: Examples of advanced sensor interface applications, including healthy garden management, water heater and pipe monitoring, pool automation, and motion-controlled lighting.
9. Maintenance
- Cleaning: Ensure the device is powered off before cleaning. Use a dry, soft cloth to wipe the exterior. Do not use liquid cleaners or aerosols.
- Firmware Updates: Regularly check for and install firmware updates through the Shelly Smart Control App. Updates often include performance improvements, new features, and security enhancements.
- Environmental Check: Periodically inspect the installation environment to ensure the device is not exposed to conditions outside its operating specifications (e.g., excessive heat, moisture).
10. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on. | Incorrect wiring; no power supply; incorrect voltage. | Verify wiring connections. Check power source. Ensure voltage is within 8-24 VAC, 9-28 VDC, or 5 VDC. |
| Cannot connect to Wi-Fi. | Incorrect Wi-Fi password; device out of range; Wi-Fi network issues. | Double-check Wi-Fi password. Move device closer to router. Restart router. Ensure 2.4 GHz Wi-Fi is used. |
| Device unresponsive in app. | Loss of Wi-Fi connection; app synchronization issue. | Check Wi-Fi status. Restart the Shelly Plus Uni. Restart the Shelly Smart Control App. |
| Sensors not reporting data. | Incorrect sensor wiring; incompatible sensor; sensor malfunction. | Verify sensor wiring according to the sensor's manual. Ensure sensor compatibility. Test sensor independently if possible. |
| Dry contacts not switching. | Incorrect wiring to controlled device; device malfunction. | Check wiring between Shelly Plus Uni outputs and the controlled device. Ensure the controlled device is functional. |
If you encounter persistent issues, refer to the support resources mentioned in the next section.
11. Warranty and Support
11.1. Product Warranty
The Shelly Plus Uni comes with a 3-year device warranty, providing assurance for product quality and reliability. For specific terms and conditions, please refer to the official Shelly website or contact customer service.
11.2. Customer Support
Shelly offers comprehensive support resources to assist users:
- Knowledge Base: Access product specifications and guidelines.
- Technical Support: Direct assistance for technical issues.
- Facebook Support Groups: Community-driven support and discussions.
- Reddit Community: Engage with other Shelly users for tips and help.
- Shelly Academy: Video tutorials and webinars for learning and advanced usage.
For support, you can visit the official Shelly support portal:
Image 11.1: Information on Shelly's support resources, including a QR code for quick access to the support home page.
