I've a bluetooth gatt service and two channels to write
bluetoothGattService = gatt?.getService(UUID.fromString(ble_gatt_service_uuid))
mTxCharacteristic1 = bluetoothGattService.getCharacteristic(UUID.fromString(txCharacteristics1))
mTxCharacteristic2 = bluetoothGattService.getCharacteristic(UUID.fromString(txCharacteristics2))
Now I have onCharacteristicsRead(), onCharacteristicsWrite(), and onCharacteristicsChange()
I connected with the ble device
When I write on mTxCharacteristic1 characteristic then ble works well
But whenever I write on mTxCharacteristic2 characteristic then ble gets DISCONNECTED
// function1
mTxCharacteristic1.writeType = BluetoothGattCharacteristic.WRITE_TYPE_NO_RESPONSE
mTxCharacteristic1.value = chunk
gatt.writeCharacteristic(mTxCharacteristic1)
//function 2
mTxCharacteristic2.writeType = BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT
mTxCharacteristic2.value = chunk
gatt.writeCharacteristic(mTxCharacteristic2)
How to resolve this?
Everytime it is getting disconnected whenever I send data using 2nd characteristics, I'm only able to connect with ble again only when I restart my android device.
I tried:
gatt.beginReliableWrite()
gatt.setCharacteristicNotification(characteristic1,true)
gatt.writeCharacteristic(characteristic1)
gatt.executeReliableWrite()
gatt.beginReliableWrite()
gatt.setCharacteristicNotification(characteristic2,true)
gatt.writeCharacteristic(characteristic2)
gatt.executeReliableWrite()
nrf connect app showing (TX(1) and unknown_characteristic(2))
still getting the same disconnected with gatt server issue with state 133.
Just made this simple writeCharacteristics instead of reliableWrite on doing this disconnection and no repairing issue resolved
gatt.writeCharacteristic(characteristic1)
gatt.writeCharacteristic(characteristic2)
I was have 8 byte of packet data where I sent null which I found on debugging
expected was 19 byte array and I was sending only 11 packets (8 missed)
due to this it was giving me error and getting disconnected with state code 133
