I want my nrf51 to be in peripheral mode and it should able to receive data from mobile(central mode) in short I want nrf51 as peripheral client, is there any sample example in sdk11 which can do this, if not then is there a way to achieve it?

[Pranay]

After connecting to smart phone i want to send few bytes to data to nrf51

[Sigurd]

Hi,

I recommend taking a look at the ble_app_uart example. It’s located in the folder <SDK_InstallFolder>\examples\ble_peripheral\ble_app_uart On the smartphone side, use the UART module in the nRF Toolbox app.

You should also take a look at the Getting started with the nRF5 development kit tutorial.