Thank you. I will have a closer look at the code.

I already saw this posting. However it's for Server, not Client.

Hello, unfortunately I couldn't find any (up to date, ESP-IDF v4.2.x) example for GATTC UUID128 connections. Being still not really familiar with BLE after hours of studying it isn't that easy to adapt the gattc_demo provided. I'm wondering if a different approach would work. I have to connect to a ...