solved: Display Values

[werner_g]

I am a FHEM-user and publish sensor values via MQTT. For examples, I can see all published temperatur-values when checking the 'mqtt-spy'-tool. I would like to display these values in a ESP Easy-node using an OLED. Still using V1.47. Can anyone help me what I have to do?

[Barb232]

hi,
i am using fhem too, and i wrote a short post in my blog.
It doesnt matter if its OLED or LCD1602

https://blog.moneybag.de/fhem-lcd-displ ... or-sds011/

Robin

[werner_g]

Hi Robin, so I need ESPEasy V2.0 (Mega) to import MQTT-values?! By-the-way, there are three different MQTT-protocols available (Domoticz, OpenHAB and PiDome). Is there any benefit to use Domoticz? I will upgrade to V2.0 tomorrow.

[Barb232]

i am using Domoticz MQTT for this and it works.
i didn't find MQTT - Import in 147, so lets try the 2.0 dev 10 version.

[Shardan]

If anything fails you can use FHEM's "notify" and send just a http command

Code: Select all

http://<ESP IP address>/control?cmd=oled,<row>,<col>,<text>

There are commands for clearing and display on/off, see wiki.

https://letscontrolit.com/wiki/index.php/OLEDDisplay

[werner_g]

After upgrading to V2.10 I was able to display values out of the 'FHEM-universe'. Thanks for your tutorial, Robin! Now I can start my next project: combine FHEM & ESP Easy-devices with Node-RED.