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Eric Goethals
Reviewed in the United States on February 25, 2025
These have been really good for me. I’ve been using them for years now. I can turn devices on and off anywhere in the world over the Internet and I get text messages telling me when there’s been power interruptions. The power monitoring could be better, although you can’t expect much in saving a long duration of power usage for a device. The configuration can be a bit cumbersome if you’re not used to it so just pay attention to the instructions and I’m sure you’ll get it to work.
Shawn D
Reviewed in the United States on September 4, 2024
Switches seem on par with other smart switches build quality wise. I did disassemble these to reflash them with Esphome in order to get then integrated with Home assistant. So far I have not had any issues with these and would buy again.
R. J. Marquette
Reviewed in the United States on July 30, 2024
I think I have about 18 of these. I've installed Tasmota on them, which is extremely easy to do (tip: speed it up even more and avoid soldering by getting some of those spring clips). I've gotten to the point where I have Tasmota installed on each one in about 5 minutes start to finish. I use them for several appliances solely to monitor power usage (things I'd never shut off, like the fridge), and with Tasmota you can disable the ability to shut them off.I had one that didn't work - the relay never triggers power to flow. Unfortunately I didn't open the package and discover the issue until after the return period had expired. So, that one is on me. But otherwise they work great.
Delroy
Reviewed in Canada on July 29, 2024
Have been using these for a few years now and have been working great. I flash Tasmota open-source firmware on them and have full local control and integrates with Home Assistant or others that support MQTT. Since these also have power monitoring circuit, you can monitor power consumption. I have 12 of them now and work great.
sergio
Reviewed in Mexico on March 4, 2024
Cumple con su función y sencillo de instalar
Branden K
Reviewed in the United States on December 30, 2024
I bought these Smart Plugs to reflash with ESPHome and integrate into Home Assistant, and they worked perfectly! The flashing process is a breeze—there are labeled pads that you can clip onto to program, so no soldering is necessary. Once set up, they function flawlessly and provide reliable energy monitoring. Highly recommended for anyone looking to customize their smart plugs for home automation!
Saul Hernandez
Reviewed in Mexico on November 12, 2024
son bastant robustos y para medir y controlar sirven bastante bien
Brian
Reviewed in the United States on November 10, 2024
Used these around the house to control power strips and lights. Used with Home Assistant and they work well.
nj28sharp
Reviewed in the United States on June 5, 2023
Pros:FlashableAffordableEasy to useCompatible with Amazon Alexa, Google Assistant, and IFTTTPower monitoring featureCons:Too big it cover 2 gauge outletsNot as fast as some other smart plugsDoes not support 5GHz Wi-FiTo flash a Sonoff S31 with Tasmota, you will need the following:A Sonoff S31 smart plugA USB to TTL adapterA micro USB cableA computer with a terminal emulatorOnce you have gathered your materials, follow these steps:Disconnect the Sonoff S31 from power.Open the Sonoff S31 and expose the PCB.Locate the GPIO0 button and the TX and RX pins.Connect the TX pin of the USB to TTL adapter to the RX pin of the Sonoff S31.Connect the RX pin of the USB to TTL adapter to the TX pin of the Sonoff S31.Connect the ground pin of the USB to TTL adapter to the ground pin of the Sonoff S31.Connect the 3.3V pin of the USB to TTL adapter to the 3.3V pin of the Sonoff S31.Connect the USB to TTL adapter to your computer.Open a terminal emulator and set the baud rate to 115200.Enter the following command to enter bootloader mode:Press the GPIO0 button and hold it down.While holding down the GPIO0 button, plug the Sonoff S31 into a power outlet.Release the GPIO0 button after a few seconds.The Sonoff S31 should now be in bootloader mode.Use the terminal emulator to upload the Tasmota firmware to the Sonoff S31.Once the Tasmota firmware has been uploaded, the Sonoff S31 will reboot.The Sonoff S31 will now be running Tasmota.
Émile Paradis
Reviewed in Canada on December 3, 2023
I didn't even test them with the app, I directly flashed them with Esphome. Disassembly was a breeze, flashing them was a bit tricky but that's what you get when you do it without an iron solder.Now that they're flashed, I run a custom template to report the current and wattage to Home assistant. The build quality is solid and they have so far responded really well.This is really the best of both world, a great product flashed with a custom firmware I have 100% control over.
Nathan Hek
Reviewed in Mexico on November 16, 2023
La verdad es que son mejor de lo que pense me sorprendió la calidad funciones integradas y facil de usar e instalar la verdad no hay nada similar que sea mejor.
yann
Reviewed in the United States on April 28, 2023
Disappointed. It wouldn't connect to phone. Based on what I read in email, it will only work if you use alexa or google or other platforms. I didn't want any platform. I just wanted it connected to my phone and it wouldn't do it. I spent 3 hrs working on it. Not worth my time. Their are other brands that are more friendly then this crap.
KnC
Reviewed in the United States on August 1, 2022
I first bought SwitchBot smart plugs thinking they would work with the Core SwitchBot integration with Home-Assistant, extremely disappointed in not only the broken integration, but also the terms of service from a company that has had a lot of recent YouTube praise. Unfortunately, it just shows the known ignorance and total abandonment of values in the name of convenience... Enter HACS and Sonoff; While Sonoff is also doing some data mining it is possible to run the S31 Smart Plugs completely local without the app or the cloud using HACS on Home-Assistant with no fooling with jumpers or fussing with flashing. Several recent HA forum posts and YouTube videos cover the procedure, just look for the most current so you can follow along more easily since the recent changes.Also, Stay away from the S40 if you use Home-Assistant. S31 is the way to go.Deducted a star for the shady terms of service that are getting all too common with IoT products. Otherwise, it would be 5 stars.
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