I don't see a problem in the sleeping mode, as long as the device sends regular updates.
But indeed, a +0,5°C and -0,5°C is way to much.
At least give us a possibility to go to 0,1°C when connected to power, and 0,2°C when in battery mode.
Make room for a disclaimer so the user understands this has a huge impact on battery life.
I love the design of the device, really, but this threshold is making the device useless (for me).
I have 2 Uni's. I tested both of them with 3 identical DS18B20 sensors.
I see only 2 sensors on each uni.
Are there any settings you have to make?
What am I doing wrong ?
Why wouldn't that be a good idea Ardje ?
If you restrict the access-point to Mac-addresses that belong to Shelly, you can prevent data consuming devices from connecting to it.
Also, the wifi signal should just be strong enough to reach devices within 1 meter or so.
And what the ESP has to process is only a small amount of data.
I really don't understand that you give such a device an ethernet connection, when this device is intended to be used in installations having maybe 5 or 10 or more of these ethernet enabled devices.
You need a separate ethernet switch to wire all these Shelly's. So you use a lot of power, while you can (almost) completely eliminate that when only 1 is connected to a central ethernet switch.
I received my 4PM Pro's today.
I connected the device to my ethernet switch.
I thought (but I seem to have it wrong) that you can use the AP for connection a second/third/... 4PM.
My switch is connected to my router, giving ip's in the range 192.168.178.xxx
But the AP of the shelly 4PM is giving out ip's in the range 192.168.33.xxx
I expected the Shelly 4PM to have it's primary connection via Ethernet, and make a bridge to the AP.
When a new device would connect, it would receive an IP from my DHCP server, not from the Shelly.
When installing 5 shelly 4PM's next to each other, I need 5 ethernet cables.
This makes no sense. What I'm I doing wrong ?
Hello
Before ordering some Uni's I would like to know how long an Uni will run on a battery.
Has the Uni the same low power cpu as (eg) the windows sensor.
If yes, I was thinking of creating door sensor myself, in a location where in no power, outdoor.
I can mount a magnetic contact with a reed contact, take a long cable and put the Uni in a location covered from weather influences.
The battery pack that I can use:
https://www.amazon.de/-/nl/dp/B0732ZX9CR
8x 1.5v AA
or
to make it smaller, use 2x 9V block battery (since the Uni takes anything between 12v and 36v)
If I have to replace the batteries every month, I must find another solution, if it runs for +6 months that would be great.
The spec sheet of the Uni says: consumption < 1w....
Anyone who tried this?
