I am trying to make the waveform like Oscilloscope on nextion and arduino. so i don t want to slide of the line.
The past line stay on the screen and new line start from first point as below link.
If x is the horizontal resolution of the display, and y the vertical, you have an array of x elements.
You store each y reading into consecutive elements.
Then during retrace, undraw (plot in the background colour) the previous pixel using the y value from the array, and draw and store the new sample in the same element.
Thank you for your reply but x axis is time on arduino and y axis is readed data by arduino send to nextion.
i can make array just y axis.
would you write basic example
No, the X axis is an array of scaled sample (y value) values
I don't think a Nextion display is the right thing to do that. Nextion Displays are optimised for HMI use, not as displays.
This topic was automatically closed after 62 days. New replies are no longer allowed.