How to get handle for characteristic

[Henrik Blidh]

Using a querying of board for handles in the uuid when writing Gatt request must be wrong.

Offending section

Read BLE documentation and find out how to do it correctly.

[Henrik Blidh]

For pygatt, one can use the get_handle method on the BLEDevice class.
For gattlib, I build a dictionary of handles using discover_primary and discover_characteristic