I have a BLE device with a "particular protocol".
I need to send a command to retrieve heart rate measurements (using notifications).
My question is: how can I get response after write the "send command"?
MY STEPS:
1) Check if the BLE is supported on the device
2) Enable Bluetooth
3) Start the scan of the devices
4) if I find my device (a smartwatch) then I connect to it
5) Once I'm connected, I start the "discover services"
6) In onServicesDiscovered() what do I have to do?
I have to write (send command) before call setCharacteristicNotification() or viceversa?
