HLK-LD2410 becomes unavailable

Hi I use HLK-LD2410 native integration in my HA to connect to LD2410C over BLE. 2410-C device is mounted on a small PCB Prototype Board and is powered by usb cable and mobile charger.

I see that after a few hours, it becomes unavailable. I need to go to /config/integrations/integration/ld2410_ble page and and need to reload the integration. When I do that, the device again becomes available and starts showing the sensor data.

What do I need to do to ensure that it does not become unavailable frequently?

appreciate any guidance.