If you’re displaying your dashboards on an Android or Fire OS device, you could use Fully Kiosk Browser to automatically return to your desired dashboard with the following settings:
Auto Reload on Idle = 60 seconds
Skip Auto Reload If Showing the Start URL = True
This approach is fairly easy to configure, though it has one downside in that it will reload the whole browser / page rather than just doing a fast client-side navigation. Not a big deal if you don’t expect people to be standing in front of the dashboard when it reloads, but I figured I would mention it.