HOW to measure advertise interval time

[yehaibo]

I used uart to set advertise interval time,How can i know the real time i set

[Sigurd]

An easy way to measure the advertising interval is to download the app nRF Connect, and do a scan. The app will show the measured advertising interval. The attached image is from nRFConnect, and shows a device called Nordic-UART is advertising with a 100ms interval.

[yehaibo]

thanks for sigurdon's reply,i have download the app nRF_connect , and i installed on my phone. i use the app to scanning,but only can see N/A , would you help me. why?