I would like to create a color picker.
I would like to select a color from a color wheel and have this color displayed on the nextion.
I was hoping this could be done localy on the hmi then push the selection to my arduino with the press of a button.
I can' t see a way to read x,y touch points locally.
The only way I can imagine to do what i want is:
-load an image
-sendxy to arduino for every press on my color wheel image
-have arduino set a nextion button color based on this
Any other ways to do this?
I have another way using sliders over a H/S/L map however it will require me to convert in nextion H/S/L (decimal 240/240/240 to decimal value so I can set bc for buttons to this value.
Anyone know how to do this?