Ticket scanning turnstiles were installed over the weekend at Kim Ma bus station in Hanoi.
Doubtless they will be rolled out all along the BRT route to Yen Nghia. The age of smart tickets looms.
Equally without doubt will be the incompatibility of existing bus cards that are used on the rest of the Hanoi bus network. Will keep you updated on progress of the roll out as I get it.
UPDATE on July 25, 2018: Still no information forthcoming about when the smart tickets and scanning is due to start. Nothing on the Hanoi BRT Facebook page or their website as far as I can see.