Pls recommend a DIN thermostat

Hardware
1

I have a dumb Devi thermostat that controls my rain gutter heating. This should run when freezing. This is a huge waste of energy (money) if there has been no snow. But a necessity if there has.

Does anyone have a recommendation of a thermostat that can be controlled by Home Assistant:

  • DIN mountable
  • either zigbee or esp that can be flashed.
  • can be aliexpress stuff (runs a contactor, so no amps through the thermostat)
  • temp sensor can be either analog or digital (it currently has NTC 15 kOhm at 25 Ā°C sensor, but i can change it if necessary, easily accessible)

Can be just a din mounted ESP based relay if I can connect a temp sensor and make it a ā€œthermostatā€ in ESPHome.

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2

Get din mounted relay like Shelly Pro and connect your Devi to the input (SW) of that.
Then do your automationsā€¦
But how you sense if there is snow or not?

3

Already did that, but Iā€™d rather throw out the Devi (just a bit diifferetly - I take away the power from Devi with a Shelly). So I need a Shelly Pro type thing with GPIO. There must be one! Then I would also get the outside temp from this to HA.

I have a meteo station, so I know if and how much has been snowing since the last thaw.

4

Shelly Pro has connector for Add-on which gives you gpios.

5

Lets hope there is maybe something cheaper.

6

Why it has to be din?

7

Why do things usually have to be din? Neatness in a fuseboxā€¦

8

Remove the cover plateā€¦
You only need few cm3 for Shelly plus and Add-on

9

As I said, I am looking for something cheaper than Shelly Pro, but am willing to do some legwork (flashing).

I was hoping to get input from someone who has installed ESPHome or OpenBeken on something like this: https://www.aliexpress.com/item/1005004613143379.html

10

They are trash to my opinion.
I wrote Shelly Plus, if din is not must.

11

Yeah, thanks for input, but that is not what I am looking for. I do not know in how many different ways I can phrase that.

12

Usually one is enough when itā€™s clear like that.

13

I thought I described quite thoroughly in the original post what it is I am looking forā€¦

14

Yes you did. Sorry for disturbing. Good luck.

15

Maybe a Sonoff TH Elite can be used?

1 Like
16

Search Database of Zigbee devices compatible with ZHA, Tasmota, Zigbee2MQTT, deCONZ, ZiGate and ioBroker for ā€˜+dinā€™, there are several available.

I can personally vouch for the Gledopto GL-SD-003P (which is a dimmer, not what you are looking for in this case, but thought I would mention it as I also love DIN rail stuff) and the Tuya TS004 (which is a 4-gang relay, but comes in 1-gang, 2-gang, 4-gang and also for mains and lower voltages). Both were inexpensive and available on AliExpress.

Looking now, I donā€™t even see the latter on Blakadderā€™s site, but these relays are all over AliExpress (at least last time I looked). You will know them because they come like I said in multiple gang configurations, and then in 2 voltage varieties for each gang configuration (7-32V or 85-250V).

Just make sure you order the Zigbee ones (as I think they come in Wi-Fi version too, but then you need to use their app or LocalTuya or something like that, which personally I am not going to do).

17

yup, looks like this is the one
thanks
ordered one from aliexpress and in 4-12 weeks, lets try tasmotizing or esphomizing :slight_smile: