how can i send int16_t data type via ble!

[abuzar12]

Hi, im using nrf 52 DK. Im currently working on BLE UART example. I need to send int16_t data type to my smartphone's nordic uart app. But i cant. I was using the function ble_nus_string_send(). But it can only send uint8_t data type. Is there a way to send int16_t data type? I'm using s132 v2.0.1 and SDK v11

[endnode]

Cut 16-bits of your integer into two 8-bit bytes, put them to the buffer one by one and call NUS send function with proper data length and buffer reference. Similarly on the other side reconstruct integer back from byte stream received.

[Nguyen Hoan Hoang]

just do ble_nus_string_send(p_nus, (uint8_t*)&Your16BitsThing, 2);

[abuzar12]

Thanks for the quick relpy. I tried it, but im getting unrecognized characters, not the data(numerical data) i need at the uart app.

[Nguyen Hoan Hoang]

That is normal. it is not a string. You were asking to send a 16bits data. What you get is exactly what you sent. if you want to send it in ascii format for human readable, that's something else.

char buf[10];
sprintf(buf, "%d", Your16bitsThing);
ble_nus_string_send(p_nus, (uint8_t*)buf, strlen(buf));

[abuzar12]

Thanks ,it worked!