I am planning to build an ultrasonic water tank meter and want the display to be a large graphical display on a TFT, I was looking at something liek this.
My question is, as I havent done anything with one of these...
How do I send a grphic image to this?
I would pretty much have 10 water level steps, would I simply save say 10 versions of the bar chart as jpg and switch between them or is it better practice to just build the bar graph by segments?
I will start similar project in some weeks from now.
Might bet there are some similar projects already done - just search the I-Net.
Here in Germany I found a project which seems to do most of that what I want to include into my own project.
Just for your information the links to a short youtube video and the forum link with the complete code: - video - code
Hope it doesn't confuse but kicks you into the right direction.