I’ve tinkered a 4ch sonoff to control my Somfy blinds via an extra remote i have. i wired the remote’s buttons directly to the sonoff’s outs.
The problem is i can’t attach any of the Generic Blind’s outputs to Sonoffs switch things. The 4ch Sonoff just isn’t in the pull down list of Blind’s connections.
Obviously i haven’t had the change to test generic blind in real life, but i think th Somfy way to control those is not supported in any of the 3 generic blinds types. In somfy, there are following buttons: Up, Down, My, Pulse up, Pulse down. The latter two are made by a roller button. As said, i don’t quite yet know if i can get it to work reasonably with the delay settings of the generic Venetian blinds