How to Set Up Your Sonoff S40 Smart Plug

Beginner 5-10 minutes

What You'll Need

  • Sonoff S40 Smart Plug
  • eWeLink app (iOS or Android)
  • 2.4GHz Wi-Fi network

Step-by-Step Setup

  1. Download eWeLink app
  2. Plug in Sonoff S40
  3. Enter pairing mode - hold button until LED blinks
  4. Add device in eWeLink:
    • Tap "+" and follow pairing wizard
    • Select Quick Pairing or Compatible Pairing
  5. Connect to Wi-Fi and complete setup
  6. Name and organize

Key Features

  • Wi-Fi smart plug
  • 15A capacity
  • Alexa and Google Home compatible
  • eWeLink app control
  • Scheduling and timers
  • LAN mode for local control

Troubleshooting

  • Pairing modes: Quick (5s hold) or Compatible (3x press)
  • Wi-Fi band: 2.4GHz only
  • LAN control: Enable in eWeLink for local network control
  • Reset: Long press button until rapid LED flash