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Ilgaz Ergün

dev_ilgaz

@ergun-i · Joined December 2025

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Backend geliştirici · yazılım

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Viewing 9 posts – 16 through 24 (of 24 total)

Translated from Türkçe by AI ·

That’s fine, but don’t run the service as root. Add the user to the dialout group: sudo usermod -aG dialout $USER, then log out and log back in.

Sahadan selamlar.
♥ 0

Translated from Türkçe by AI ·

The documentation lists MQTT 3.1.1 for devices (8883 TLS, 1883 if the profile allows it) and HTTPS, with no MQTT over websocket. So the path from the browser to the broker is closed, and I think that’s a good thing, because the device token is the device’s identity, not the reader’s identity.Reading is done through the REST API. For the latest values there is this endpoint:

GET /tenant/<tenantId>/api/telemetry/latest?kind=iot_device&entityId=<cihazId>&keys=temperature,humidity
Authorization: Bearer sk_live_...

But you shouldn’t put the API key in the browser either, same problem. At home I did it like this: there is a 20-line Flask application on a Raspberry Pi, and the key is stored in its environment variable. The page asks Flask at /sera, Flask asks Hermetry, and it returns only two numbers.When creating the key, on the API Keys page give only telemetry read permission (there is a ready-made Read only preset in the modules), and enter the home’s external IP in the IP allowlist. The key is shown only once, so don’t forget to copy it.Details: History API and the authentication page. Even simpler, build a small dashboard in Hermetry and invite your mother to the organization as a user, but if you want a single-number page for your phone, the Flask route is convenient.

Sahadan selamlar.
Accepted solution♥ 9

Translated from Türkçe by AI ·

I don’t know about the hardware side, but instead of sending a separate POST every 10 minutes, how about collecting the readings and sending them as a series once an hour? Hermetry accepts a series of records with ts in a single message, and for quota purposes it also counts as one message.

Sahadan selamlar.
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Translated from Türkçe by AI ·

No flow is needed for this, the Rules card on the dashboard is made for exactly this. I did the same at home.First, create a site called “Home” in Sites & Assets, enter its latitude and longitude, and place the ESP32 there. Then add the Rules card to a dashboard and lock the card to that location. Rules:

1) When: A time of day, 06:30, Mon-Fri
   Then: Send a command -> esp32-ev, relay.set {"ch":1,"on":true}

2) When: salon_temp rises above 22, and stays so for 10 minutes
   Then: Send a command -> relay.set {"ch":1,"on":false}

3) When: salon_temp falls below 20
   Then: Send a command -> relay.set {"ch":1,"on":true}

4) When: Sunset, offset 0
   Then: relay.set {"ch":2,"on":true}
5) When: A time of day, 00:30, every day
   Then: relay.set {"ch":2,"on":false}

“rises above” triggers on the edge, so it runs once at the moment it goes above 22, not on every message. The gap between 22 and 20 also prevents the boiler from switching on and off constantly. Sunset needs the location of the place, otherwise it warns “Sunrise and sunset need this place’s location” when you save.When going on holiday, set the place’s Auto/Manual button to Manual; the rules then send nothing. Details: Rules card: triggers.

Sahadan selamlar.
Accepted solution♥ 6

Translated from Türkçe by AI ·

I also noted the thermal expansion example, and we had the same discussion in our boiler room. I’ll ask about Safe separately, but I think the valve question is closed.

Sahadan selamlar.
♥ 2

Translated from Türkçe by AI ·

I was also wondering about Safe, I think it’s unlocked with a separate license. I guess we need to contact sales.

Sahadan selamlar.
♥ 0

Translated from Türkçe by AI ·

Selecting both switches side by side on the card should be enough, write both in the keys field.

Sahadan selamlar.
♥ 2
Viewing 9 posts – 16 through 24 (of 24 total)