I'm VERY interested by your topic... but as I try to go to your blog, I just get "Error establishing a database connection".
Please, is there a way to read your blog?
My idea would be to modify a Sonoff device: to connect 2 relays on 2 outputs of the esp in order to control a curtain motor (it needs 220V on "up" connexion, 220V on "down" connexion or nothing). Then I would need to flash the esp programm on the Sonoff module.
Is your blog the right solution to my issue?
My last question: ewelink app will not allow me to control " up and down" my curtain. Can I change that easyly? Thanks.