Bluetoothgattserver Is Always Disconnecting After 30 Seconds

I've been trying to figure out how to get these phones to talk to each other via Bluetooth. I have the android phone set up as a peripheral, and I have my iPhone running the nrf co

Solution 1:

Per the ble core specification, for ATT

A transaction not completed within 30 seconds shall time out.

In practice, this usually manifests as a disconnect by one side of the connection.

Some types of GATT requests require responses (i.e Indications, Read Requests, Write Requests). Doesn't look like you are implementing callbacks such as onCharacteristicReadRequest & onCharacteristicWriteRequest in your Gatt server implementation which could lead to this problem.