cannot scan ble device after awhile

RE: cannot scan ble device after awhile

Joakim Jakobsen — Wed, 23 Oct 2019 11:42:29 GMT

Hi.

The APP_ADV_DURATION is the the advertising duration in units of 10 milliseconds.
So using APP_ADV_DURATION = 1000 will have the device stop advertising after 10 seconds, as expected.

Setting the APP_ADV_DURATION to 0 should make your device advertise indefinitely.

Best regards,
Joakim Jakobsen

RE: cannot scan ble device after awhile

lydie — Wed, 23 Oct 2019 09:23:28 GMT

Hi,

I'm using st7735. APP_ADV_DURATION is 1000, so I tried to increase it to 10000. The disappearance time is longer, but it still becomes disappear. Do you know if I can make this parameter unlimited to have a stable connection?

Thanks for your response.

RE: cannot scan ble device after awhile

Joakim Jakobsen — Tue, 22 Oct 2019 11:40:07 GMT

Hi!

Could be many different reasons that the device is no longer detected by nRF Connect.

What FW are you running on the nRF52832? How long does your device advertise, i.e what are the advertising timeout?
Are you sure that the device is in range with nRF Connect?

Best regards,
Joakim