Is there a way to re-flash e-welink devices to something cloud-less?

[sharp cedar]

I wonder if there is an option to re-flash the smart-switches that log into e-welink to something that woks without an additional cloud service out there in China? Maybe Tasmota or ESPHome? Maybe that is a dumb question and I am just using the wrong keywords to google?

[ashen citrus]

"is it possible" is a absolute "maybe"
but might involve tearing it down and manually flashing and if thats even an option depends on a few things.
is that a road you would go down?

[sharp cedar]

So let us conquer my own thread with unrelated stuff instead of poisioning Serein's one

[ashen citrus]

lol

its a fair point

we derailed a bit

[sharp cedar]

So for the route, yes I am absolutely fine with hardware intervention and interaction...

No problem with hardware development

[ashen citrus]

so if theres an esp inside and its not had the internal fuse blown that prevents firmware flashing. then its entirily possible that you could flash esphome on it manually.

although a MAJOR WARNING. in a lot of iot devices there is no real seperation in AC/DC
the low voltage circuit is referenced to AC neutral. this means the microcontroler pins are live at mains voltage

[sharp cedar]

Yes, I know that. I worked in a home automation company and had to very carefully keep an eye on what is before and behind the separation transformer

I probably will set the ESP development onto an old laptop and use it either separated or off battery to program the units, Or I do have these ESP32 programming adapter and can use that to power the device without even having it plugged in.

[ashen citrus]

awesome, you seem to know about electronics but just a heads up.

[sharp cedar]

They use the capacitor dropper power supply.

Yes, better save than sorry

[ashen citrus]

you should join the esphome discord and ask over there if anyone has tried it with these switches:
https://discord.gg/qecdxbpM

the regulars over there know a lot more about stuff than i do

[sharp cedar]

I bought a few of these and at the day I wanted to install them, the e-welink app stopped working in HA

[ashen citrus]

433 mhz rf. you might bee best off emulating that if you can use that to control it "offline"

[sharp cedar]

No, I am an amateur radio operator and I am not further poisoning the 433MHz

Btw all network infrastructure is running over PoE. So there is no problem in just adding a few APUs and have the system going over longer blackout periods. And I don't talk about external blackouts while the world is going down, just the fact that we have vwertical gardens using pumps and heaters. And my mother in law likes to water them manually. The flowers, sometimes also the walls behind them, and sometimes also the wall outlet, boom the RTC is tripping

And I cannot separate all wallplugs to separate circuit breakers and such

[ashen citrus]

i know you already have stuff but in the future i would recommend shelly relays

[sharp cedar]

Yes, I was just in the need of a humidity and temperature sensor and these seem to be cheap and easy

I followed your link and moved over to the ESPHome hardware thread

Seems these Smart Switches do support 433

[ashen citrus]

https://apolloautomation.com/products/r-pro-1

multi sensor that runs on poe

i haven't used any apollo stuff personally (yet) but its highly recommended

i am gunna get some most likely when some of the new stuff hits the uk supplier

[sharp cedar]

Nice

[sharp cedar]

Okay, just to close up this topic:
https://github.com/openshwprojects/OpenBK7231T_App
This seems to be the solution, as the chip under the shield of that SmartSwitch is not any ESP but a BL602E-20. So I have to add that device to that OpenBK7231T_App and see how it works out.

[ashen citrus]

ah that's cool, hope it works out

[ripe moon]

Thanks for the recommendation! We are actively talking with the PiHut about getting the R PRO-1, M-1 and PUMP-1 on their store!

[ashen citrus]

awesome

[ashen citrus]

btw, do you just search for "apollo" on the discord server every so often? to see who's mentioning? 😛

[sharp cedar]

That sensor is interesting. However that thing isn't what I am looking for now. Cause I want to measure humidity and temperature in my network cabinets, and if possible, also door open detection.

As you have rarely WiFi inside a steel cabinet and you don't want another power supply or wall-wart inside that, I was looking for some PoE solution.

But the SmartSwitch modules are so cheap that I just connected a Power cord and put the unit outside the cabinet, routed the sensor inside through the cable channel and that's it for now. Probably I will add a light to the relay control for the cabinet.

Your radar sensor is a cool thing where I want three of them in my lab to detect motion and three outside to detect motion as well.

But to be honest, Who put the LAN connector parallel to the detection line of sight? I cannot imagine one installation where the cable would come from the front. At least with my places, LAN would always be fed from the side.

[ashen citrus]

the apollo sensor? is poe and i you can use the ethernet for data

something else to look at is this - https://www.craftcomputing.com/product/axe-effect-temperature-sensor-beta-/1?cp=true&sa=true&sbp=false&q=false

its not released yet and is coming in a few flavours. one of which is poe. its designed specifically for racks

[ripe moon]

Pretty much! Haha.

We like to stay engaged with the community and make sure people know we are real!

[ashen citrus]

maybe ill try and work it into other conversations somehow to give some false positives