Wireless timer synchronization between Central and Peripheral 2 devices

[yokokawa]

OS in development environment ：Windows10
HARD :(Taiyo Yuden)EBSHSN Series Evaluation Board : Central / Peripherals
CPU :(Nordic) nRF52832 / ARMR Cortex-M4F 32 bit processor 28-pin Land Grid Array / 15GPIOs / SWD
Soft Ver:nRF5_SDK_15.3.0_59ac345
Sample program to use: "ble_app_uart　"

Please tell me how to send a beacon from Central and perform timer synchronization between Central × 1 + Peripheral × 2 devices.
Is there a sample program that can be used as a reference?
Thank you

[haakonsh]

You can try this blog post: https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/wireless-timer-synchronization-among-nrf5-devices .

It's a bit old and you'll need to port the code to SDK 15.3, but it's a good starting point.