Custom characters on LCD screen?

tall_fn · Joined: 22 Jan 2013 Posts: 3

I've been working with LCD screens for awhile now doing the regular numbers and letters. But, has anybody ever done custom characters on an numeric LCD screen?
If so, can you share your code please? Smile

Mike Walne · Joined: 19 Feb 2004 Posts: 1785 Location: Boston Spa UK

I assume you mean 7*5 LCD display.

This link gets you part way there.

http://www.ccsinfo.com/forum/viewtopic.php?t=47307&start=0&postdays=0&postorder=asc&highlight=horse

Yes. It can be done, easy enough, just a bit tedious.

Mike

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Use the search page to search for: custom lcd characters
http://www.ccsinfo.com/forum/search.php
Set it to: Search for all terms
Here's another example:
http://www.ccsinfo.com/forum/viewtopic.php?t=40565

tall_fn · Joined: 22 Jan 2013 Posts: 3

Alright cool!
as for the connections to the LCD screen, am I still going to be using four bits?

temtronic · Posted: Tue Jan 22, 2013 7:16 pm

You can use 4 bits if you want, though 8 bit mode is technically faster.

While 8bit mode requires 4 more I/O pins, it is faster and reduces code space so a PIC with less memory could be used which might save a few pennies.

TOO many details aren't known..like... is this an existing board? is a unique PIC mandated for the task? already have code cut and it's just an pin compatable LCD upgrade? time to market? These 'details' only you know and have to weigh but the general thought on this forum would probably be to stick with 4bit mode( though I like 8 bits better)

hth
jay

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Read Ttelmah's comments on 4-bit vs. 8-bit mode for the lcd interface:
http://www.ccsinfo.com/forum/viewtopic.php?t=49607

tall_fn · Joined: 22 Jan 2013 Posts: 3

HEY I GOT IT TO WORK! Very Happy

I'm messing around with the up arrow, down arrow, degree program right now trying to better understand how it is working.