Not possible, the micro:bit does not have a LoRaWAN stack which is what TTN needs for you to use a LoRa radio to communicate with it via a LoRaWAN gateway.
The PiSupply device is great for Point 2 Point, that is between two micro:bit’s or a micro:bit and any other device running a LoRa radio - but that is not for this forum which is funded to support TTN. As such it’s not something we support.
Please consider the environment when you put long titles and screen shots that show the default entry layouts - every bit costs energy!
There are still stocks of various HAT’s and accessories using them in various channels … perhaps inc PiSupply, though we dont know if this uBit version is new, old shoebox spares or even 2nd hand!