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trying to use a lcd20x4 with NUCLEO-F401RE throgh i2c comminication using a PCF8574T.

EnricoR
Associate

I'm trying to write on a LCD named 2004A. The problem is that the row i write are mixed up.

I attached a photo of the result and the two main file of the project.

Thanks for yout help.

3 REPLIES 3
Foued_KH
ST Employee

Hello @EnricoR​,

Welcome to the Community :beaming_face_with_smiling_eyes:

You find some modification in the files bellow with comments.

 Foued

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Foued_KH
ST Employee

Second file.

Foued

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

EnricoR
Associate

Hello! Thanks for yout help.

I tried to run the code with you modification but the result is even wroste. This time it display only the first row, always with error.