I have this
$5 Bluetooth page-turner working just fine with both my Libra 2 and my Clara 2E. Simply follow the steps listed here,
including #5, which is said to be for the Libra 2 only but I find is also necessary for the Clara 2E:
https://www.reddit.com/r/kobo/commen...ally_cross_my/
Note: the Reddit post linked above says it stopped working for the original Reddit poster with the latest firmware, but the system he described is working fine for me with both my Libra 2 and my Clara 2E on the current firmware.