ESPHome + LD2420 Do I need to APPLY CONFIG after Calibration?

Hello everyone,

I tested a few months ago an LD2420 sensor and I liked it, now I started to permanently install a few sensors in my attic, under the insulation, so the sensor see’s me trough the drywall… all tests ware done in the same conditions, in attic trough drywall.

While I was trying to config and adjust settings I noticed that when I applied config it reset my settings to whatever it was in the begining, but now the last time, it did not change any values, it worked ok.
Detection Gate Maximum:12
Detection Gate Minimum:1

I tried Calibration multiple times, even let CALIBRATION operating mode active for 20+ minutes, my questions are:
DO I NEED TO PRESS APPLY CONFIG after change the Operation mode from Calibration to Normal?

DO I need to Restart Module after calibration, after switching to normal operation mode or after any settings update?

I need to filter the noise, I left the apartment yesterday night, it was completely empty even today so I could run the calibration, it seems in the last 40 minutes it did not trigger any false positive … but I’m not 100% sure it’s all good, I will see in a few days how frequent the false positives show up in those logs


The kitchen had the last false positive now 2 hours ago.