The power cable method would not be the weapon of choice. What I'd like to try is to install a web server on the kobo and then try to build a small wifi client that would have nothing else to do than to connect to the Kobo and flip the page, when I press a button...
I've no concrete idea so far how to build this wifi client, but that would be the next step. The first one would be to prepare the Kobo...
Any help appreciated. I promise to also publish my wifi module solution if I find one...