I have Xiaomi Aqara contact sensors. They are connected to a CC2531EMK Coordinator which is managed by Zigbee2mqtt. With a rule, I send a notification by telegram when the contact is opened:
rule "Briefkasten" when Item Briefkasten_Kontakt changed to OPEN then sendTelegram("Bot", "Du hast Post!") end
This works fine, except for one thing. Every day, at the same time + 1 minute, I receive this notificatio without the sensor was realy opened. Does someone have an idea where I can search for the reason?