[Opendispense] UI design

Bernard Blackham bernard@blackham.com.au
Thu Aug 7 16:46:59 2003

On Fri, Aug 08, 2003 at 12:41:15AM +0800, Nick Bannon wrote:
> > I was thinking of assigning them 50 - 56. But always changable.
> Ah, but the columns are labelled first, so 5x codes are in use (but
> not x5).

Hmmm, true. Maybe 3 digit entries might be a good idea? I'll get the
hardware code written first, then worry about the UI :)

> It'd be nice to have a bus ticket's worth of change to hand.
> We'd have to refill the change often, or it'll spent its time showing

Probably no more often than is currently being done. If people use
the machine to credit their coke accounts then it should be
self-refilling. Counted two bags today with about $5.00 of 10c and
5c pieces...

> > It might seem a little laggy even over a 9600bps link, but
> > this way we only need to flash the ROM as few times as possible.
> 9600bps is ten times what we'd need - if it's laggy, we're doing it
> wrong. "Wrong" includes, for example, using SOAP to interface with the
> thing. ::-)

So we're not letting Adrian near it? (he's started using soap i hear :)

Bernard, currently reading/writing motor code.
Display & keypad & chime code is written, not closely checked
though. And someday I'll figure out the coin mech.

 Bernard Blackham 
 bernard at blackham dot com dot au