Willow Bullen

One other possibility to show the code but have a waiting symbol (e.g. two arrows circling each other), until the robot knows the code has been received by the server,...

I have written up a detailed phase design for how this could be implemented. See https://docs.google.com/document/d/1ZXCd3-ErDeTIgGrC3na8XYTM1pXBKUDVHPsafLN2pxU/edit?hl=en#. Please feel free to edit and comment on how this might be done. I...