To view the board in the Sengerio Driver application, click on the Board in the bottom of the Agenda.
If there is a red circle it means that there are posts you have not yet viewed and, if that is the case, the number indicates how many.
Keep in mind that from the Sengerio Driver application, it is only possible to view the posts, not to enter posts.
Here below you can see an example of how to view a post.
The orange bar that you see is present below the oldest unread post, if there are any.
If a post has a file attached, click on the file to open it full screen, or in the case of an image, to download it.
Normally, the last ten posts are displayed, to see previous ones click on the Show more button below.