Shelly Plus i4 - DC
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B&QB&Q - Plus I4 4-Input Digital Controller With Dc Powering Support
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OnBuy.comShelly Plus I4 Dc, Wi-Fi Smart 4-Digital Inputs Controller Of Shelly Smart Switches, 5-24 Vdc, Home Automation, Ios Android App, No Hub Required, 3800235265543
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Product Information
Full details
The Shelly Plus i4 DC is a versatile four-channel digital input controller tailored for advanced smart home enthusiasts who need to trigger complex scenes and automate multiple devices without traditional relays. It excels at centralizing control through existing wall switches, offering the ability to execute up to 16 distinct actions based on button click patterns. While it is a powerful tool for triggering HTTP and MQTT commands, users should note that this device does not contain a physical relay for switching high-voltage loads directly, serving exclusively as an input interface.
All features
| Series | Plus i4 |
|---|---|
| Model Part Number | SHELLY_PLUS_I4_DC |
| Brand | Shelly |
Extended Product Information
FAQs
Can I use this to switch a 110V/230V light bulb?
No, the Shelly Plus i4 DC is an input-only device and does not have an internal relay for high-voltage switching.
Do I need a hub to use this?
No, the device connects directly to your home Wi-Fi network.
What is the maximum number of actions I can perform?
You can trigger up to 16 distinct actions by utilizing the single, double, triple, and long-push capabilities across all four channels.
Can I use JavaScript with this device?
Yes, the Plus i4 DC supports custom JavaScript for advanced, complex automation scenarios.
Is this device compatible with MQTT?
Yes, it is fully compatible with MQTT and HTTP protocols for integration with various smart home platforms.
How do I reset the device to factory settings?
Locate the reset button on the device and hold it for approximately 10 seconds while the unit is powered.
Troubleshooting
Device is not appearing in the app
Ensure your smartphone's Bluetooth is enabled and the device is within range. If it still does not appear, power cycle the unit.
Wi-Fi connection keeps dropping
Verify the device is within 30m of the router and that there are no significant physical barriers. Ensure the 2.4 GHz band is not congested.
Input not triggering the intended action
Check the input configuration in the web UI to ensure the action is correctly mapped to the specific click pattern (single, double, triple, or long).
Pros and Cons
Pros
- No hub required for Wi-Fi connectivity
- Compact design fits behind most wall switches
- Enhanced security via HTTPS
- Easy setup via Bluetooth integration
- High level of automation customization via scripts
Cons
- Does not switch high-voltage loads
- Requires 5-24 VDC external power supply
- Not intended for direct lighting control without secondary relays
Setup, Compatibility & Care
To begin, ensure you have a stable 2.4 GHz Wi-Fi network. Installation involves connecting the input wires from your wall switches to the device's terminals while supplying the unit with a 5-24 VDC power source. Use the Shelly Cloud App to perform the initial discovery via Bluetooth for a streamlined experience. For care, avoid installing the device in high-humidity areas or locations exceeding 40 °C. The unit features built-in overheat protection to prevent thermal damage, but regular maintenance should include checking wiring connections annually to ensure no oxidation has occurred. Always ensure the device is housed in a fire-retardant wall box to comply with electrical safety standards.