Re: Serial LCD/VFD displays

["Patrick Lidstone <patrick@xxxxxxx>" <patrick@xxxxxxx>]

--- In ukha_d@xxxxxxx, "Kenneth Watt" <kwatt@f...>
wrote:
> > looking to get a cheap-ish serial LCD or VFD module to play
with.

I've been playing with www.crystalfontz.com LCD's. They are 
expensive - but the quality of the display in terms of legibility is 
superb. The 20x4 display with bezel is exactly the same dimensions as 
a UK double wall box - although I haven't done the mod to mount it 
yet.

Here's some ideas about what you can do: I've also done written some 
xAP software to drive these things - so now I've got weather station 
data alternating on one line, latest news headlines scrolling on one 
line from teletext, and the whole display switching over to flash 
important events such as doorbell ringing. Optionally it can flash 
the backlight to such events as well. The display driver is able to 
intercept IR events to change the display on user request (e.g. to 
switch from current news headlines to traffic news), and is also able 
to schedule these things based on time of day (it presents now-and-
next TV schedule items in the evenings, and can display pre-
programmed reminders). Finally, the display is aware of occupancy 
events from comfort, so the backlight turns off when the room is 
empty.

Anyway, a few ideas of what can be done... it's all pretty trivial 
with xAP, it has to be said.

Patrick



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