Sonoff S31 Tasmota Flashing (Home Assistant and Octoprint)

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In this video I show how you can install Tasmota firmware on an inexpensive Sonoff S31 smart outlet. The process allows you to integrate the outlet with Home Assistant or Octoprint and doesn't rely on cloud services to function.

00:00 Intro
01:06 Necessary Components
01:43 Disassembly
02:14 Programming Header
03:02 Soldering Programming Wires
03:53 Double-Check Connections!
04:10 Install Tasmota Firmware
05:23 Connect to WiFi Network
06:22 Configure Tasmota (optional)
07:39 Octoprint Configuration
09:59 Octoprint/Octodash Demonstration

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Thanks for this video! I'm about to purchase 5 of these things to use with my first home assistant setup and it's really nice to know how straightforward they are to flash with Tasmota.

calculon

I really miss your product announcements from Sparkfun, Robert. This video brought back some fond memories. Thank you!

MotoRideswJohn

Thanks for the video on how to get these things apart. If anyone's FTDI doesn't have 3.3V output, 5V can be soldered to the bottom right leg of the voltage regulator (SOT-223 component under the GND pad)

CapnBry

Nice video. I did this last year and is working out great. Next I want to have an alert when the UPS is going to shutoff because the battery is running out.

andymok

oh hell ya. I am glad you are showing this kind of stuff off! I am hoping that egauge gets native home assistant support!

Ender_Wiggin

nice walkthrough. good info. thanks for putting this up. i went for esp home

JBothell_KFIVQ

I should get that for my printer, looking forward to a video about that enclosure too.

kylewarren

Hi, Robert. Thank you for this video, it's really helpful.I have one question: Flash 2 S31 plugs with Tasmota. One few month ago and the other one today. One which I flashed earlier shows control(on/Off button in Home assistant but other one, which I flashed today, NO. Do you have any idea why? Thank you

YevgeniyBolembakh

I'm going to have to pick some of these up!

JonathanRansom

Does Tasmota support reading the voltage and power consumption. You showed just switching it on and off. What does the interface for getting power work? Can you use HTTP API Requests?

angelxmod

Did you remove the soldered cables from the board before inserting back into the plug housing? or just tuck them in there? thanks

mattgriffiths

Not clear, should I flash every subdevices (eg. sensors etc.) if I want to use them with a Sonoff bridre pro? (which is flashed)

frogmen

Thanks for the video. Just picked up 4 of these switches and I need to get them off that stupid cloud software asap.

gregeezy

Fixed. When devices is added to Tasmota and Sonoff integration, it's not shows CONTROL. So I remove devices from Sonoff and refresh Tasmota . Control of the devices appear on the top of the page. Thank you again for your tutorial.

YevgeniyBolembakh

Heyy, thanks for guide. I did have problems I thought I'd share. I personally couldn't get it to Connect / Read. For me. **I had to hold the power button. While I'm plugging in the USB flasher to my computer**

.. I kept getting either Sync failures/ connection Errors, when it was connected TX to RX; RX to TX. Then when I swapped them to Rx to Rx; Tx to Tx, I instead got the error "Invalid head of packet (0x00)". The Flasher would get further and the RX/TX LEDs would flash more in the second Data-Pin configuration, so it lead me to think. That is the right order.. **IF you don't interrupt the bootup of the firmware (at least for me) IE: You see the light flashing blue on the Plug, Or, you can push the button when it's plugged into USB and you see the Red LED turn on / Off and it clicks the relay on / off. The plug is in control of the firmware and nothing you do will work and you won't be able to communicate to it. The correct pin-out *for me. Was the TX to RX; RX to TX, hold the power button while plugging in.

Thanks again!

emmashepard

I ordered some spring loaded micrograbbers - no need to solder.

coolspot

has anyone been able to pull the bottom plate off? i just cant get it to come loose

Raptorsirrationalinventions

How does Shawn Bruce's plugins compare to teh OctoPrint-Tasmota by jneilliii?

Probably an update. Everything else worked great!

imppaco

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