Need Assistance on Interfacing Components

[O'Rain]

Hi Friends!
I am trying to come up with a project using ATmega32 interfaced with a basic 16x2 char LCD display and a sealed membrane switches VOIP keyboard. I am stuck on how to interface them correctly. anyone who can assist? Please help me, thank you.

 

[nandhu015]

There are lot of examples in avrfreaks.net. You can also use google to find sample projects.

Nandhu

 

[lunar]

to get some help regarding LCD interfacing visit
LCD Interfacing : TheCollegeRoad, easy pay .. rapid delivery

I am sorry the tutorial is not yet complete, but you will get something useful.

 

[nandrei]

Hello,

I made a simple project with PIC, a LCD and a few buttons in assembly.
These two articles are the best info that i found. My LCD was another model, but i could get some hints out of them. The worst part was to get over the errors in the datasheet , fixing typos in my source code was the other problem.

In a nutshell, you have to "boot" the lcd (send it configuration commands ) ( register select = 0)
send data (rs = 1)
send commands (check busy flag, clear display, etc..) (rs = 0)
send new data, etc... (rs = 1)

 

[O'Rain]

I think I am heading somewhere promising. Though not yet done, I hope to succeed in my project. Kudos to Edaboard members. I still need more suggestions, especially if anyone knows how to program them in C.