Sonoff Basic: WiFi smart switch to automate lighting and appliances




Sonoff Basic intelligent WiFi switch , an intelligent switch that allows us to turn on and off any home electronic device with our smartphone

For those who are interested in the theme of “Smarthome” or intelligent home, in this article we present a gadget that you surely like. This is the Sonoff Basic intelligent WiFi switch , an intelligent switch that allows us to turn on and off any home electronic device with our smartphone.

If you have a 3D printer at home or nearby, you can print a Sonoff programming clip

Sonoff Basic WiFi Smart Switch

  • Measures: 90 x 40 x 24 mm
  • WiFi: 802.11 b / g / n (WPA-PSK / WPA2-PSK)
  • Integration is only possible in the 2.4GHz frequency band
  • Maximum current: 10A, maximum power: 2200W

The principle of operation of this switch is simple. Just connect the cables of the device you want to control with this switch, link it from your eWeLink application with the WiFi network, and ready for use. The switch has an input (with conductor N and L) and an output (with conductor N and L). Charges of up to 2200W can be connected, but we recommend using devices with less power. According to the manufacturer, the standby consumption (Stabndby) is less than 0.5 W. We have measured 0.4W.

The best thing is that we can integrate the switch with an alternative firmware , for example Sonoff-Tasmota. In this way we can use the Sonoff in the domotic systems of open code like HASS.io, ioBroker or openHAB. The Sonoff Basic Smart Switch can also be controlled with Amazon’s Alexa and Google Assistant or Nest.

Here we show you how we can flash the Sonoff switch, so you can use it with the Tasmota firmware. As a guide I recommend the ” Flash Sonoff using Raspberry Pi “.

Sonoff Basic WiFi smart switch with Tasmota

Important: this installation should not be done by anyone, because it could be dangerous. Do not forget that before carrying out the installation the switch must be disconnected from the 220 V network,

Sonoff Basic intelligent WiFi switch , an intelligent switch that allows us to turn on and off any home electronic device with our smartphone
some of the devices that we can connect to the Sonoff smart switch

If you already have an open source home automation platform such as Home Assistant or you want to add one to your home, we have good news for you. The WifI Sonoff switch can be easily flashed, for example, through a Raspberry Pi 3 Model B or its GPIOs, as the popular ESP8266 module is used .

OTA updates “Over the Air”, that is, flashing “over the air” (without having to connect to a PC) with, for example, Windows, normally no longer works, because the Sonoff firmware of the modules supplied is too new (newer than version 1.6). If the firmware is relatively old, it can be flashed with SONOTA. However, the best way to carry out this process is with the raspberry. It seems as if we are hacking something, I like it!

Sonoff switch open. On the sides the entrances and exits, in the center the contacts to flash it.

The back: In principle the pins can also be welded.

If you have a 3D printer at home or nearby, you can print a Sonoff programming clip . With it, you simply hook the pins in the contacts (and you do not need matches like me, it’s not the most professional way to do it).

I fixed the cables to the Raspberry Pi in a very professional way.
In principle it should not take long to do the flashing. If we follow the guide correctly, the process is quite easy.

Conclusion

In my opinion, this should be the goal of “Smart-Home”. To be able to network the sensors or switches and actuators that we have discreetly, so that they simplify our life and turn our home into a more intelligent home.

The price is very good, the possibilities are huge. If you prefer a “normal” smart plug (including grounding), you should take a look at the Sonoff S20.