nrf master control panel android app error

[gokul]

nrf master control panel android app sent only one byte, while sending more than one byte gives Error 13 (0xd): GATT INVALID ATTR LEN

cant we send more than one byte in byte array ???

[Hung Bui]

@gokul: Yes you can. But what is the max length did you set for your characteristic when you initialize it in your application ? Have you tried to test with ble_app_uart example where you can send 20 bytes at a time ?

[gokul]

@hung yes done thanks lot for reply

[Padmashree N S]

I am trying to establish connection between ST BlueNRG2 and the nRF Connect app. I have managed to send large bytes of data from BlueNRG to the app. But while sending large bytes of data from app to the BLE module after connection I am getting the following error-

Error 13 (0xd): GATT INVALID ATTR LEN

How do I increase the length so that I can send more bytes of data?

[Hung Bui]

Please create a new case. Note that you need to follow the maximum length allowed for the characteristic. If you need to send longer data than the max length, you need to truncate them into smaller parts.