ESP32 BLE server

I wanted to try out the BLE capabilities of the ESP32. I will not go into deep explanations how BLE works. Adafruit has a nice tutorial that explains details. To learn about BLE, check out the Introduction to Bluetooth Low Energy. As I have temperature and humidity sensors attached the logical step would be to set it up as an environment sensor. I checkedĀ  the Bluetooth GATT services to find out if there is something matching defined. And there is

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