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Dobrý den @ondbyr2561 ,

příklad naleznete na snímku níže:

Přeji hezký den,
Antonín z Unipi

Hi everyone,

In these cases, this guide can help: https://kb.unipi.technology/en:sw:01-mervis:automatic-restart-of-1-wire-hidden

Unfortunately, if you have improperly processed cabling, or if you have a large number of sensors connected to this bus, you cannot achieve the desired stability, because the 1-Wire bus is very sensitive to interference.

In this case, I recommend checking the wiring to make sure you have all unused wires and the cable shield connected to the ground terminal. Next, check the length of the bus and the number of sensors on the bus.

An alternative to this connection is also the connection of sensors via Extension xG18, which has 8 separate 1W channels, each reserved for one sensor. Perhaps the only disadvantage of this module is that it is possible to connect only sensors DS18b20 and supporting parasitic power.

Finally, I also recommend reading this article about 1-Wire: https://kb.unipi.technology/en:automation:02-glossary:1wire-hidden

Best regards,
Antonin, Unipi

Hi everyone,

Currently this is possible by flashing Mervis OS and then installing Node-RED following the standard installation instructions: https://nodered.org/docs/getting-started/raspberrypi

However, this solution is not tested and we cannot guarantee that the Mervis RT will behave correctly if other such demanding SW is running on the controller.

Best regards,
Antonin, Unipi

Hi @Vesa-Kauppinen,

try apt update && apt upgrade again.
We made some adjustments due to the new Unipi Iris HW, but this should work fine now.

Best regards,
Antonin, Unipi

Hi @lukec,

You can try the current Node-RED image, which is available at this link: https://kb.unipi.technology/en:hw:007-patron:download-image:02-nodered

Best regards,
Antonin, Unipi

Hi @Brzezinol,

you can try using nginx + LetsEncrypt for this.

Best regards,
Antonin, Unipi

Hi @JakubSzlaur

The documentation is really old, but this command looks functional. As recently as last year, someone used it for an update (link to the Node-RED forum), but I didn't test it.

We will also soon release a new Node-RED OS with the current Node-RED v3. Which is also a certain possibility to update.

Best regards,
Antonin, Unipi

Hi @ArnieX,

Thank you for your post.
This is a typical error when setting up communication with INEPRO/KLEFR electricity meters, and it is really necessary to be careful when setting up other devices (modbus tables).

Best regards,
Antonin, Unipi

Hi @knebb,

Thanks for this post, it's very helpful.

Best regards,
Antonin, Unipi

Dobrý den,

tyto moduly jsou z prvopočátků vývoje a bohužel se k nim nedochovaly potřebné manuály. Pokud však došlo ke zpomalení komunikace po aktualizaci na novější verzi, hledal bych různé intervaly komunikace (např. u komunikačních skupin) a nastavil je na 0ms.

Případně zkuste připojit modul 1W-4R-4DI přímo na 1-Wire sběrnici zařízení Unipi 1.1.

Přeji hezký den,
Antonín z Unipi