Offline data log
Allow MATE to collect offline data and upload it when the internet becomes available again. Maybe allow the mate to read the SD card to fill out the gap between the last available online.
This functionality is already baked into the Mate3 and Mate3S controllers. The following knowledge-base article outlines the prerequisites: https://opticsre.uservoice.com/knowledgebase/articles/1840906-what-happens-to-data-when-my-controller-is-disconn
Boulder Wise Corporation commented
doesn't seem to work for my system with a Mate3s and plenty of space on its SD card