Sonoff S31 smart plug

my lizard tank has 3 different lightbulbs. an infrared heat bulb, a fluorescent, and an incandescent. using a sonoff s31 power monitoring, i wrote a NR flow that will alert me, not only when a bulb is burned out, but exactly which bulb it is. since all three use different energy numbers. * wrote a flow that will web scrape and price watch amazon/walmart/playstionstore/ and a few others. wrote about it here: link * used the same concept as above to watch a few websites for hardware firmware updates, like for my dashcam. * NR flow that will email me when new MagPi magazine PDF shows up on their …

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Sonoff s31, (NOT s31 lite) made to be easy to disassemble and can flash whatever bin file you want. I used tasmota on these and they work great, can be calibrated. I watched this video to learn how to do it. less than 10$ a piece and they haven’t failed me yet.

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Meh, not UL/ETL listed. Sonoff S31 running ESPHome is where it’s at.

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I've had Sonoff S31 plugs on ESPHome and so far no issues. I think it was around 2019-ish I got into automation and I replaced all the timers with them so I've got like some floor lamps cycling 4-6 times a day, radios 2 times a day, aquarium lighting and reptile heat lamps 2 times a day. Still going strong with no failures yet.

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For smart plug energy monitoring, the $8 sonoff s31’s that can be flashed with ESPhome or Tasmota for fully local control are amazing. You don’t want energy monitoring en masse on your Zigbee network as it’s too chatty. For Zigbee, Aqara is everywhere but they have known issues with their products not following the Zigbee protocol. Specifically their devices don’t do well swapping repeaters.

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You no longer have to flash the S31s. There's the SonoffLAN Integration that offers local control over LAN and/or Cloud from Home Assistant. Mine are stock firmware and have been tested and confirmed to be 100% local with no calling out.

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Sonoff S31 with EspHome firmware will do what you want if you're using Home Assistant.

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But sonoff s31 - they go on sale quite frequently. No need to buy the zigbee version unless you really want them. You can convert the generic s31 into esphome

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I'd use packages and push variables to them for customization. For instance, I have the following three packages for my S31s --- yours might be different for your use case, but these are abbreiviated versions of my `common/sonoff-s31.yaml`, for S31-specific config: logger: baud_rate: 0 # (UART logging interferes with cse7766) uart: rx_pin: RX baud_rate: 4800 parity: EVEN sensor: - platform: cse7766 id: cse7766_hub current: ... binary_sensor: - platform: gpio pin: number: GPIO0 mode: INPUT_PULLUP inverted: True name: "Button" on_press: - switch.toggle: relay switch: - platform: gpio name: …

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You did didn't state if you want zigbee, wifi, thread, Z-Wave or something else. For Wifi, Sonoff S31 (not Lite!) flashed with Esphome are great. I have 15 of those.

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I like the Sonoff s31 flashed with an ESPHome program.

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For smart plugs in the US I use Sonoff S31s flashed with Tasmota

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https://static.xtremeownage.com/blog/2023/sonoff-s31---low-cost-energy-monitoring/ S31s. hands down. Why? Because they are as cheap as 4$ a piece, and I can run whatever firmware I want to run, and customize them as I please. There is ZERO requirements I have on the manufacturer, or cloud services, etc. Nothing they can do, will prevent me from being able to use, update, and maintain these. I have about 3 or 4 dozen of them. Do NOT get the S40s. Bigger number is not better!

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Not everything works with HA, my Sonoff s31 doesn’t work with HA

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