Is 4-Channel 5V Relay Shield Module Compatible with Home Assistant (ESPHome)?
Hardware Safety & Electrical Verification
Electrical parameters & logic voltage safety limits before powering ICs
## Compatibility Overview
4-channel opto-isolated relay module for controlling 4 independent AC or DC high-voltage electrical circuits.
Interactive Pinout & Wiring Diagram
Hover over any pin to view voltage limits and pull-up specifications
## Technical Specification Matrix
| Feature / Attribute | Specification / Status |
|---|---|
| Hardware Protocol | GPIO / Optocoupler |
| Bridge Required | NO |
| Border Router Needed | None |
| Hardware Capabilities & Peripherals | Relay 1 State Relay 2 State Relay 3 State Relay 4 State Note: Exposing entities to Home Assistant requires corresponding YAML component config. |
| Pairing Complexity | Plug-and-Play |
| Factory Reset Instruction | Hold BOOT button for 3s. |
## Step-by-Step Pairing Guide
Factory Reset Device
Hold BOOT button for 3s.
Initialize Pairing Mode on Home Assistant (ESPHome)
Open Home Assistant (ESPHome) administration console, navigate to Integrations / Add Device, and start pairing scanner.
Confirm Entity Binding & State Verification
Verify that primary entities (Relay 1 State, Relay 2 State, Relay 3 State, Relay 4 State) report live state changes inside Home Assistant (ESPHome).
Production Code Generator & Preset Toolkit
Pre-configured pinouts & drivers for 4-Channel 5V Relay Shield Module
Report a Pinout Error or Submit Tested Code Snippets
Found a pin mapping quirk or built a custom ESPHome YAML driver for 4-Channel 5V Relay Shield Module? Help us keep this matrix 100% accurate.