Moto Z phone is difficult receive advertise data

[zcmm]

 Dear,all
       device:51822  s110  sdk8.1.0  adverting interval:1s
       or exmaple hrm s110  PCA10005

       i use moto Z phone and nrf connect apk,it is difficult to receive

the advertise data.Maybe it can receive 2 times in 10 seconds.What could be the cause?

[Sigurd]

Hi,

What do you mean by "difficult to receive"? If you lower the advertsing interval, does it improve? If the phone is not doing ~continuously scanning(long scan interval with too short scan window) it can miss advertising packets(harder for you scanner to "hit" the advertising packets):

[zcmm]

hrm_s110 default adverting interval is 100ms,but it can receive 1 times in 10 seconds. nrf connect setting Scanner-->Scanning period == Manual Continuous scanning == Enable Scanning API == lOLIPOP Scanning Mode == Low latency.

[Sigurd]

How are you testing how often you are receiving? Note that if you are the RSSI history, the scanner is turned off when you open up the RSSI history.

[zcmm]

i test 1 hours.what is RSSI history? RSSI limited? And i use other phone, setting is same as MOTO Z,it can receive normally.

[Sigurd]

If you click on "MORE" in nRF connect you can open the history:

acket that is received(shown as a red-dot):