MultiLink Central + UART over BLE Service

[eng.Gemy]

i am aiming to design a simple data transfer network. i am using 2 DKs. the first one is the central which runs a modified version of MULtilink Central Example and the seond DK runs the ble_app_UART example. the scanning and service discovering run smoothly on the central side. the problem happens when I try to send a string from the peripheral side to the central side or vice versa. in the first case the event discovered on the central side is: BLE_GATTC_EVT_HVX and i don't receive the string. in the second case trying to send the string from the central to the peripheral. i get NRF_ERROR_INVALID_STATE from ble_nus_string_send.

Any help is appreciated..

[Susheel Nuguru]

its difficult to say without looking into the code

[Dmitry Kr]

Hi, all!

Does anyone tried to made UART central?

[Marco Russi]

Hi, I hope it is not so late. I developed a multilink NUS central for nrf51 based on s130. It is designed as a UART modem with AT like commands for controlling connections and anything else. In addition I developed an Arduino host for connecting it with and external Arduino board if necessary. Find my repos here:

github.com/.../nrf51_multi_nus_central

github.com/.../arduino_nus_host

I have just posted a blog about. Cheers.