Seeed Studio Sonoff RFR2 Wi-Fi Smart Switch


The purpose of this design is for learning how to play with the hardware and software of a IOT project, it is based on price competitive wifi module ESP8266.

Seeed Studio Sonoff RFR2 Wi-Fi Smart SwitchFeatures

  • Remote ON/OFF:
    • Turn electrical devices on/off from anywhere
  • App support:
    • Free iOS and Android mobile app eWeLink
  • LAN control:
    • Turns on/off the device even when WiFi has no internet access
  • Sync status:
    • Real-time device status provided to the app
  • Timing:
    • Sets scheduled/countdown/loop timers to turn on/off at a specified time
  • Share control:
    • Controls your smart home together with your family
  • Scene:
    • Turn on/off a gang of devices with one tap
  • Smart Scene:
    • Triggered on/off by temp, hum, or other environmental conditions from sensor
  • Compatibility:
    • Works perfectly with Amazon Alexa, Google Assistant, IFTTT, and Google Nest


  • 90VAC to 250VAC input voltage range
  • 10A maximum current
  • 2200W maximum power
  • 0°C to 40°C operating temperature range
  • 5% to 90%RH non-condensing humidity range
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