I have a 5 wire analog resistive touch screen that has touch pins labelled as BL (Bottom Left), BR (Bottom Right), TL (Top Left), TR (Top Right) and SG. The touch controller IC (AR1100) has X-, X+, Y- and Y+ and SG for the touch interface. How do we map BL, BR, TL, TR to X-, X+, Y-, Y+?
Thanks in advance
-markj
Intuitively I'd expect...
BL = X- & Y- BR = X+ & Y- TL = X- & Y+ TR = X+ & Y+
but I could be wrong
normally computer screens have 0,0 on top left corner and I think a touchscreen is normally laid out like this
TL-----------------
| |-TR | | | | | | | | BL-| |
----------------BR
so I'm guessing
TL = y- BR = y+ BL = x- TR = x+
-Lasse
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