Voice control - "Roller blinds in the living room set to 50%".
The smartphone is not at hand and no hand-held radio transmitterwithin reach? You don't have to get up from the couch to adjust your blinds so that you are no longer blinded. Alexa will do it for you, just say:
"Alexa, set the blinds in the living room to 100%"
"Alexa, set Venetian blind to 0 %" - the Venetian blind is completely opened
"Alexa, set Venetian blind to 100 %" - the Venetian blind is completely closed
"Alexa, set Venetian blind to 50 %" - the Venetian blind stops halfway up, the slats remain open
"Alexa, set external venetian blind to 99%" - the external venetian blind extends almost completely and is then opened
"Alexa, set external venetian blind to 100%" - the external venetian blind is closed completely