Problem guide
Control lights or appliances from Wi‑Fi safely
Use ESP32 smart-home kits for low-voltage learning loads; when AC is involved, use rated modules and qualified installation.
Steps
- Prototype with low-voltage LEDs/loads first.
- Use opto-isolated relay boards and respect coil vs contact ratings.
- For mains wiring: stop and use a qualified electrician — do not improvise.
- Add watchdog / fail-safe so Wi‑Fi loss leaves outputs in a safe state.
Kits & catalog links
Start from project kits matching “smart home”, then fill gaps from parts.
Safety
- Mains voltage is hazardous. This guide does not provide AC wiring instructions.
- Confirm relay contact rating (VAC/VDC and amperage) before any load.
Assumptions
- Smart-home kits vary; follow the specific kit documentation.
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