INTP:
You can use parametric equations to move time off the axis and track 2 separate variables and still plot the time element.If you just want to throw pairs of (x,y) on a graph, you just need to use the right kind of graph. It's easy. Tell us what program you're using, how old you are, and in simple language what it is you expect the end product to look like.
I am using arduino IDE, have 23 years old, and this is how graph should like
y axis is horsepower and x axis is RPM
arduino will send (x,y) cordinate every 0.1 sec
vaj4088:
Sure, if you have Excel or an equivalent. What does this have to do with Arduino?
I want to be real time, excel can print it after he gets full log