Excuse me everybody, LCD1602A LCD in protues simulation, according to the normal connection good physical hardware, LCD1602A no display, using a mobile phone to interfere with the screen will display is not normal, with potentiometer adjustment backlit displays some don't know the grid and then disappear for a while

CodePudding user response:

1 out of a hardware problem, the LCD screen on other plate test
2 ruled out a software problem, the software running on the other board test

CodePudding user response:

If software is no problem, or a potentiometer, transferred to the suitable position

CodePudding user response:

Potentiometer backlight is adjustable brightness, transferred to the right

CodePudding user response:

Carefully check the simulation diagram of IO port and physical IO port corresponding!

CodePudding user response:

51 control?

CodePudding user response:

Can check it again, there is need can contact me

CodePudding user response:

The signal amplitude?

CodePudding user response:

Initialization is display a row of grid, use clean screen code for the initial screen clearing
Then you can display what you want to display content