Sonoff S31

Can be configured for ESPHome/HomeAssistant. Works great! I use it to monitor power usage to trigger "running" and "done" type notifications for my not-smart laundry and dishwasher, where i disabled the button and set the led to match the running state. Why this instead of zigbee? because the highish sample rate power number stream isn't so great for blasting through a zigbee network, that might have hops through battery powered devices. it's good to keep zigbee more event based rather than stream based, for latency and power saving.

This is a great power monitoring smart plug if you are willing to flash ESPHome to "uncloud" it. This turns it into a locally controlled device that does not "call home" or require proprietary apps to function. Easy to take apart and reassemble after modding. Fixes many of the pain points described by other reviewers (poor WiFi, app pairing issues). Otherwise for the sake of privacy you are better off with a Zigbee model like the S31 Lite.

I installed custom firmware in each of these. Love these specific models because they offer great value for the price - you can monitor power usage and control outlets. They're seemingly durable and offer great features.

Pairing this plug with the eWeLink app and getting it on the wifi proved to be more difficult than I expected. Initially pairing kept failing and I was trying to follow the instructions provided with the box. I was able to find the wifi network that it was broadcasting but then I couldn't get it to accept that network to finish pairing within the app. After googling I stumbled upon a help page for the eWeLink app and figured out the issue. I use Unifi equipment for my home networking. I have the APs setup to push all capable clients to 5GHz bands. Now I will say that I have a Kasa smart plug and was able to pair with it much easier. I think maybe the Kasa app uses bluetooth to discover the device and connect initially to push the wifi information over to it but it was very simple. The sonoff plug only operates on 2.4Ghz bands, which is common with smart home devices. What I had to end up doing is to temporarily turn off 5GHz radio on my wifi network so that my phone could pair with the device on 2.4. Once the device was paired I was able to reactivate the 5Ghz radio. The sonoff stayed connected at 2.4Ghz and capable devices reconnected to 5Ghz. If you can get past the pairing issues though there are three things this plug has going for it: 1. Its very cheap 2. It works with Home Assistant and Google Home. 3. It can monitor energy usage which is great for automations within home assistant Overall I would say it's a great deal at this price point. If I need to buy anymore now that I know about the 2.4Ghz issue setting it up should be a breeze. Hopefully my review might save someone a hassle.

Device comes with a very small multi-fold paper instruction which doesn't provide complete instructions for use. It does redirect you (via QR code) to a mobile App which also seems to be incomplete. The App refers you to the paper instructions (calling it a manual). The paper instructions refer you to the App and primarly provides directions on how to set the device in one of two pairing modes (Quickpair or Compatible). Quick Pairing promises to magically pair with the device if you enter your home 2.4GHz wireless network ID and password. Failure of QuickPair suggests Compatible mode. Compatible pairing mode instructions (paper) tell you to connect to the device's WIFI network, but the App immeditately prompts you to connect to a different network to proceed. Doing so fails the pairing. Even if the plug is sitting on top of the wireless router, it complains the Wireless network is too weak (even if the phone you a pairing with has a stong signal indicator). Each attempt to pair / cycle runs 3 minutes. I am a computer engineer and have been in I/T for decades. I have many other wireless outlets in my home that function well on their own custom applications and Alexa integrations. This device seems to be faulty (beyond presenting blinking blue lights). The blinking blue lights are pleasant enough, but do not meet the advertised description.

Instead of using the eWeLink app to control this outlet (which sends your commands off to a server in China) I was able to flash it with a custom firmware for local network control. I successfully flashed both ESPurna and Tasmota which allows control via http commands sent using a web browser on my local home network. I then used a custom driver to also monitor and control this device from my Hubitat Smart Home Hub. Works pretty well and is cheap too! I did have some issues with the WiFi signal disconnecting frequently with my home WiFi Router, but I was able to fix that by making some settings adjustments with my 2.4 GHz WiFi router.

This took me a total of 2 minutes in order to set up the device, connect a freezer to it and then see the power consumption of the freezer. I was then is able to easily connect it to home assistant through the sonoff integration. And then created automations to make sure that the device was always on and that the power consumption was over a certain amount over a given period of time to verify that the freezer was always working. This is super easy and a convenient way for me to verify that the contents within the freezer will stay good even if I am not at home. Highly recommend this device.

Ya tengo varios contactos inteligentes trabajando, de la marca TPlink en sus modelos Tapo y Kasa, me gustan de ellos que son muy faciles de configurar y que tras un corte de energía regresan inmediatamente y con el último estado en que se encontraban, además de que se programan fácilmente para horarios fijos, cuenta regresiva y con temporizador. Además traen la función de atardecer y amanecer. Todo esto no lo trae el Sonoff, solo lo compré porque me interesa monitorear el consumo de algunos aparatos mientras estoy fuera de casa o en un lugar diferente a donde se encuentra el aparato. Por lo demás es un buen dispositivo, muy funcional.

Se compró para hacer inteligente el árbol de navidad, dos series de luces LED de bajo consumo (según la app nunca pasó de 40 Watts). Se configura a través de eWeLink (la app que usa el ecosistema Sonoff) y luego de ahí se comparte con Alexa para poder controlarla con voz. Una maravilla, casi no ocupa espacio y se siente bastante confiable (a diferencia de otras alternativas en el mercado). Este modelo además trae el plus de medir el consumo, entonces mejor no podría ser.

El equipo esta perfecto, funciona de maravilla y lo unico que no me gusta es que cuando lo apagas se queda el foquito azul prendido y eso en la noche alcanza a irradiar una luz que se alcanza a ver en tofa la recamara.

Para mí este es el mejor Smart switch que puedes encontrar, mucho mejor que KASA ya que aparte de controlar el encendido y apagado tus aparatos también mide el consumo eléctrico, puedes conectar equipos hasta con 15 amperes de carga, es decir equipos que consumen más de 1800 watts sin problema. Su configuración puede ser un poco confusa pero si lees bien las instrucciones no tendrás problema, no te saltes ningún paso y fíjate bien en el estado de las luces.

Excelente, estuve buscando un apagador inteligente con sensor de consumo y este es simplemente genial, no tiene tantas opciones de automatización, sin embargo, funciona correctamente y ya solo es hacer uso de algún hub de IoT (Alexa, Google Home, Smart Life, Home Assistant, etc.) para complementar. Recomendado ampliamente.