lcd display with matlab simulink

Hello everyone, I have a project in which i have to take the temperature of a sensor via arduino and make a fan spin accordingly. Even though i am new to the electronics i managed to do that. Now the final step is to display it in a lcd screen(display the temperature and the revolutions of the fan per minute,or at least one of these two).

Can someone help me please? I have an arduino uno board and a 2x16 lcd screens which has 4 bits for input.

Arduino has a library(liquid screen) and i managed to use the screen. But how can i do it in Matlab Matlab-Simulink?

Thanks in advance.

[Anubhab Pal]

Hello, maybe you can take a look in this link http://in.mathworks.com/matlabcentral/fileexchange/46247-tenet-lcd-library-for-arduino-hardware

Answer 1

[Walter Roberson]

LCD displays usually require a driver, and the driver can be chip specific. There are LCD drivers for some specific targets, but I do not see any generic LCD controller block.

Specific LCD control examples:

http://www.mathworks.com/matlabcentral/fileexchange/20532-writing-characters-to-lcd-display-on-xilinx%C2%AE-spartan%C2%AE-3a-fpga-board

http://www.mathworks.com/products/connections/product_detail/product_35978.html

General Arduino support:

http://www.mathworks.com/academia/arduino-software/arduino-simulink.html

Some of the ways used to control LEDs (not LCD), that could in theory be adapted for LCD:

http://www.mathworks.com/matlabcentral/answers/23371-how-to-add-led-in-gui

http://www.mathworks.com/matlabcentral/answers/17355-matlab-arduino-serial-communication

http://www.mathworks.com/matlabcentral/answers/3874-gui-interface-with-arduino

Answer 2

[phil]

hey klob... i am currently doing the exact same thing. i have had partial success!...

google this: Writing a Simulink Device Driver block: a step by step guide

basically you can use external libraries in simulink. i used the liquidcrystal.h file from arduino to make it work.

So i can already drive the display with simulink but unfortunately I can not pass any strings to it...

please contact me if you have a solution ...or contact me if you are unclear about the drivers guide.

gl - phil