433 MHz buttons

Hardware Home Automation
41

I have found a very simple solution for me with these buttons: https://de.aliexpress.com/item/32837659653.html

I already used rtl_433 (Tutorial - rtl_433 brings 433MHz sensors to openHAB) to query some temperature sensors. Now I just tried if the mentioned buttons can be queried with rtl_433 too. Result: yes

The data goes via MQTT to OH.

image

String		 Rtl433_Button_Time   "Time"  {channel="mqtt:topic:c4d2ca88:time"}
Number		 Rtl433_Button_Id     "Id"    {channel="mqtt:topic:c4d2ca88:id"}
Number		 Rtl433_Button_Unit   "Unit"  {channel="mqtt:topic:c4d2ca88:unit"}
String		 Rtl433_Button_Code   "Code"  {channel="mqtt:topic:c4d2ca88:code"}

So if the item “time” changes and ID and unit match the pressed button, an action can be performed.

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