Cable Replacement with BLED112 and Nordic nrf51822

[Paolo A.]

Hi everyone, I must to comunicate from HW to PC with SPP over BLE. So I took the dongle BLED112 (side PC) and the HW where is mounted a nrf51822 like uart BLE interface. For the BLED112 I downloaded the spp_over_ble_1.0.9_122 fw from BLUEGIGA, and for the nrf51822 the ble_app_uart fw. In this fw there is the nus service, and I modify it (UUID service/characteristic, indicate mode, etc. I followed this thread devzone.nordicsemi.com/.../) so that it is possible connected with BLED112 through the command ATD xx:xx:xx:xx:xx:xx 01. The connection is successful but when I try to send data from dongle, I don't receive nothing on Nordic side. Also if I try to send data from Nordic side, I don't receive nothing on dongle side which is connect with Realterm. The service is identical on both side, Service UUID 1d5688de-866d-3aa4-ec46-a1bddb37ecf6 and characteristic UUID: af20fbac-2518-4998-9af7-af42540731b3 and (in debug mode on dongle side) it seem that after connection the indicate is enable on Nordic side. So, why I don't receive/transmit nothing between the devices? Can you help me? I think that there is something else to modify....I don't know.

Thank for attention

Paolo A.

[Stian Røed Hafskjold]

That thread is only about setting up the service with the correct characteristics and UUIDs, you also need to handle the TX and RX data some way in the code. The nus service also uses the RX characteristic. So you need to rewrite the TX characteristic to also handle the RX data through indications. Maybe you could share some code to give us some hints on what you have done.