synchronization of 2 BLE boards

RE: synchronization of 2 BLE boards

Amanda Hsieh — Wed, 07 Aug 2024 16:18:18 GMT

Here is the NCS sample: ncs/timesync_sample, also see the instruction for NCS.

RE: synchronization of 2 BLE boards

klaus1234 — Wed, 07 Aug 2024 13:10:24 GMT

Hi hmolesworth

Am I right that the idea's mentioned the links you sent, won't work in connect SDK and zephyr?

Turbo J

Apparently Radio Notification API was discontinued in nRF Connect SDK v2.6.0. Any other suggestion?

Thx

RE: synchronization of 2 BLE boards

hmolesworth — Thu, 18 Jul 2024 16:49:57 GMT

Maybe have a look through this post and git repo:

wireless-timer-synchronization-among-nrf5-devices

nRF5-ble-timesync-demo

RE: synchronization of 2 BLE boards

klaus1234 — Thu, 18 Jul 2024 09:02:07 GMT

How would I send some timer values furth and back? Using a charachteristic?

Ok Environment sensors is the wrong term. I have some ADC's measuring some physical data with upto 1kHz.

thx

RE: synchronization of 2 BLE boards

Turbo J — Thu, 18 Jul 2024 08:48:07 GMT

If its only 2 boards, you could try abusing the fact that a BTLE connection already synchronizes the devices and use the Radio Notification API to tell you when the next radio slot is about to start.

You can also send some time(er values) back and forth.

Environment sensors typically only need second precisition and not ms...