40x4 object attached. (Was:Any objects for the 4004 LCD 40x4?)

Oldbitcollector (Jeff)

I happened accross some 4004 LCD (40x4) units. Does anyone have an object which will work with these?

Edit: Got it! Will upload an object soon.

Jeff

frank freedman

Oldbitcollector (Jeff) wrote: »

I happened accross some 4004 LCD (40x4) units. Does anyone have an object which will work with these?

Jeff

Try one of the Hitatchi compatible LCD objects. It may be compatible with this or actually use that chip to run the display........

Ya never know till you try,

FF

Oldbitcollector (Jeff)

I didn't have much luck the first time, but I've done a little more research to find that the 40x4 is actually 2 40x2 displays stacked. It looks like PIN 15 (E2) controls the second half of the display. I will give this another go with the existing obex object if no one has already cracked it.

Edit: Confirmed, have the upper half of the display working in 4bit mode.

Edit_2: Success. Strobing the second E2 line activates the second half of the display. Re-writing object accordingly.

Edit_3: Nailed it. Cleaning up an object for upload to OBEX soon.

Jeff

Oldbitcollector (Jeff)

Here's the object! As soon as I find my obex password, I'll upload it to obex.

I've got a few of these in stock at Propellerpowered.com ($6.50 each)
http://propellerpowered.com/shop/?page_id=707