I'm a blind user, I use computers and phones with screen reading software.
I recently got a camping trailer with a Smart Solar MPPT controller installed, this is great since I can read all info via the VictronConnect app on my iPhone.
The VictronConnect app is however not completely accessible on the iPhone or the Mac, there are unlabelled buttons and fields etc. which makes it a bit difficult to use.
I want to please urge the VictronConnect developers to make your VictronConnect app especially on the iPhone but also the Mac more accessible to screen reader users.
I'm by no means a programmer, but from what I know, Apple provides excellent guide lines to app developers on exactly how to get their apps to be accessible with the Voiceover screen reader.
These apps is the only way for blind people to use these type of solar and electrical devices and Victron is already way ahead of the others in terms of accessibility, but there is still room for improvement.