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Need to create 4 variables from values onscreen to work with arduino. Please please help!

Hello everyone!

There are lots of guys here asking for help, but i want to beg and plead for a quick and simple solution that i and my limited knowledge can make sense off. My business literally depends on it as i am only using nextion and arduino from here onwards. Please please help.

So I went ahead and got the nextion display that will now run my project.  I am using the arduino mega for this project.

My project has a screen that control an “arm” and a “head” that weighs stuff.

The arm moves back and forth and the “head” got a loadcell measuring the weight suspended from it.

The screen should show how much the arm moved and how much tension is on the loadcell.

Both these values and the values I input should be stored in variables, so that i could use this in the arduino to do stuff. When there is to much tension on the loadcell, the motor will automatically turn 1 way, if not enough weight, motor turn the other way. Arm simply should go where i tell it to, also by a variable.

I got the screen going so that i could use the “+” & ”-” buttons to “set” a value, and the screen should show me the “actual” value as well. I will include the code and a pic of what the screen looks like.


Like i said + and – buttons changes the values on screen. These values i want to use to drive to motors. That's not a problem, i simply need to write these values into 4 variables i could use later to do so.

armAngleSet – textbox on nextion with value (degrees) what it should be.

armAngleAct - textbox on nextion with actual value (degrees).

tensionSet - textbox on nextion with value (kg) what it should be.

actTension - textbox on nextion with actual value (degrees).


1 Comment

I am not sure if a public forum is the right place to "beg" for free help for a commercial project ...

for such, Itead provides Enhanced Support ...