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Re: where can find source of int analogRead(uint8_t)

how to change? every point is not same ?

That is the whole point of a touch screen. If every point was the same you could not locate the touch.
or for example X+ and X-, it is the same from bottom to top, only change from left to right

X+ and X- determine the position on the X axis. Y+ and Y- determine the position on the Y axis.

Posts: 79470
Joined: Sat Feb 07, 2009 10:11 am

Re: where can find source of int analogRead(uint8_t)

X is the horizontal axis (changes left to right) Y is the vertical axis (changes up/down)

franklin97355

Posts: 21650
Joined: Mon Apr 21, 2008 2:33 pm
Location: Lacomb, OR.

Re: where can find source of int analogRead(uint8_t)

X is the horizontal axis (changes left to right) Y is the vertical axis (changes up/down)

OK, so any point have to be decided by X and Y

jimwang90

Posts: 41
Joined: Sat Jan 23, 2016 10:13 pm

Re: where can find source of int analogRead(uint8_t)

OK, so any point have to be decided by X and Y

Yes. Like any graphics screen, it uses a Cartesian coordinate system.