Hi everyone, I have a question regarding what LCD screen to choose from as I am attempting to add this into a program.
My program currently uses a rotary for encoder for time in seconds. I also have a 7 segment display to display the time I am setting and also as it counting down. I have another button that starts the process of the countdown.
What I would like to do is use an LCD screen instead of the items mentioned above, my issue is I dont know how to set the values and then read the values from the LCD to my program. I have seen quite a few articles but this hello world is not very useful. I am still looking for a real world example of a program that uses the LCD for input so I can see how everything works together.
Can anyone offer some advice on choosing an LCD for this? Also any guidance or point me somewhere so I can see some real world examples?
I am still looking for a real world example of a program that uses the LCD for input so I can see how everything works together.
Generally you can’t read from an LCD only write to it. There is little point in reading it anyway because everything that is on it, your program put it there. So all you need to do is to make a note of what you wrote to it in a variable.
I guess my thinking was more in the line of display screens I have seen in the past where you have to press a button for a couple seconds to go into edit mode, make your changes then hold the button for a few seconds again to store the changes.
Appreciate the link, the more I read the better I understand what I can do compared to what I am thinking I can do.