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  • 18/05/2017

    The Socket can be opened easily and the circuit has a completey isolated AC-DC power supply and an ESP8266 for the WIFI connection. The RxD, TxD, 3V3 and GND are present at 4 solder points, so a 4 pin FTDI cable can be connected easily. The button is connected to GPIO0, so pressing the button while powering up let the esp8266 start with the bootloader nd then it can be programmed easily with Arduino IDE. So that's really great for creating your own remote power plug with individual functions,

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  • 11/08/2017

    I flashed this firmware to this device: https://github.com/arendst/Sonoff-Tasmota It was possible to do this without soldering by forcing pressure on jumper wires in the 4 PCB holes. Now I can control the switch with Home Assistant and the MQTT protocol without the need for external traffic. Great device for a great price.

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  • 29/07/2017

    By default, it has to be used with a cloud application that insists on knowing your WiFi password *and* your location. I leave it up to you to decide if you trust a cloud with this info. But, if you are akin to the Arduino environment, and are able to program an ESP8266, you can do pretty much anything you want with this thing, like turning it into a standard MQTT Iot device. And then, it works really well.

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  • 12/05/2017

    Funktioniert super mit der Android App. Es lässt sich allerdings auch fremde Firmware einspielen., z.B. Tasmota. Mit dieser ist auch eine Amazon Echo Anbindung möglich

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  • 14/10/2017

    At the first time I downloaded the app through the app-store and I cloud pair the device with my cellphone. I was not sure how convenient the app would be, but it is really easy to use and user friendly. Now I can control my kitchen lights by this well designed device. I would like to ask banggood to lower the price to make it easy to everyone to have many of this wireless remote controls for their different applications.

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  • 22/11/2017

    С тех пор как у меня в доме появились розетки SONOFF моя жизнь стала проще. Я подключил одну розетку к аквариуму и могу включать свет когда мне надо, даже с работы, или использовать как таймер. Другую розетку использую для подсветки комнатных цветов. Розетка очень легко подключается. Нужно скачать приложение, зарегистрироваться, нажать и подержать кнопку на розетке пока быстро не замигает и все! Как перестанет мигать значит подключилась. Приложение очень удобное, функциональное и стабильное в работе. Я покупал розетки нескольких фирм, но эта самая удачная. Рекомендую к покупке. Я думаю, такая вещь пригодится в каждом доме.

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  • 25/07/2019

    Good product and quality. Recommended.

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  • 06/08/2017

    This is my 3rd purchase of Sonoff switches, and the S20 variant is by far the most "professional" in appearance. Operation is via the "EWeLink" app, which on Android is a little power hungry. Running in conjunction with Greenify, however fixes that. Operation is absolutely solid: the latest firmware allows local wifi control without a net connection, and in 5 months I have never had a "Server not found" - vastly better than competitors such as Broadlink. Highly recommend both the physical product and the infrastructure behind it: at this price, buy spares!

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  • 10/01/2018

    It is a wonderful and useful product for a smart home!

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  • 06/06/2017

    Very good for this value. Thanks

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