jnesselr / Snack Vending Machine - History

Updated Bridge Status to show completion of every command

Adjusting how ACKs work for fetching orders

This is to help prevent buffer overflowing and will be one of several
diffs like it. The basic concept is, if the next piece of the packet,
whether it's the order header, item, etc. would overflow the buffer,
then we wait for an ACK from the other side. Both sides use the same
math so the ACK and wait for ACK on the same schedule.

Improving SiteLink protocol slightly

This diff does two things. First we reduce the size of a product update
by shortening the max length of the name. This ensures that the max product
packet length is 63 bytes.

The second thing it does is not send product updates unless the host requests
it. This is to work around some of the issues with ACKing packets.

Handling unknown card scan

Also changed the colors of the vend button around so it's more
visible when you can vend