Hi I would like to, at app level, implement access control to characteristic. My characteristic is configured solely as notify (no read, no writing).
When a smartphone turns on the notify feature of the characteristic I would like to decided if it can go one (and receive notifications) or deny it and disconnect (no permission to turn n notification).
Is it possible to implement that? How?
How can I early detect that a smartphone is just trying to write 1 to the CCCD?
Thanks a lot
Alex
