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What You'll Need
- Shelly i4 (DC or AC version)
- Physical switches/buttons to connect
- Shelly app (iOS/Android)
- 2.4GHz Wi-Fi network
- Basic electrical knowledge for wiring
Step-by-Step Setup
- Turn off power: Disconnect power before wiring
- Wire the i4: Connect switches to inputs SW1-SW4, power to L/N (AC) or VCC/GND (DC)
- Power on: Device will create "shelly-i4" Wi-Fi network
- Connect to Shelly AP: Join the Shelly's Wi-Fi network
- Configure via browser: Go to 192.168.33.1
- Set up Wi-Fi: Enter your network credentials
- Configure inputs: Set each input for button, switch, or edge trigger mode
- Set actions: Configure what happens for each input event
Key Features
- 4 inputs: Connect 4 physical switches or buttons
- Scene controller: Turn dumb switches into smart scene triggers
- AC or DC versions: Choose based on your power availability
- Multiple actions per input: Short press, long press, double press
- Wi-Fi connected: No hub needed
- Local API: Works great with Home Assistant
Troubleshooting
- Input not detecting: Check wiring. Verify input mode matches switch type
- Choose correct version: AC version for mains, DC for low voltage
- Multiple press detection: Must configure button mode, not switch mode
- Can't find AP: Power cycle the device. Check power connections
- Factory reset: Press button 5 times rapidly, or hold for 10 seconds