I tell you what - it will be easier to break the 2020 F1 addiction than to find real information about how to do this.
I just tried a search and beside finding that "somewhere" there is an API and SDK there is nothing that gets close.
the
@DonManfred link above might get you somewhere but to translate the UPD data into hardware that will make a good LED display -> -> -> ?
In fact it would be easier to learn KhoiSan language.
My guess is that a "birthday" gift @ +-150 euro would be worth the spend given the amount of time to resolve this. although, even then, one would have to translate into some form of hardware.
I found the link
@aeric showed above as well (but you (/the kid) may want more).
Sony apparently is not happy with third party additions . . . . . nor the "escapee" SDK.