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Since update to 1.0.16 the sensor sends " I'm alive messages " every 30minutes

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Since I updated my BLU door sensors from firmware version 1.0.6 to 1.0.16 (a significant update, spanning 9 versions), the sensor now sends packets to the gateway every 30 minutes. This seems to be a 'still alive' message. I noticed this change by observing the packet ID in Home Assistant (see the attached image of the packet number logging). While I appreciate this feature, I wonder if it will impact the promised 5-year battery life. The calculated number of messages per year is 17,520! And thus 87600 messages within 5 years of door open or close messages. 

Screenshot 2024-05-30 at 09.16.33.png

Edited by Johncoffee
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