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- // Touch screen library with X Y and Z (pressure) readings as well
- // as oversampling to avoid 'bouncing'
- // This demo code returns raw readings, public domain
-
- #include <stdint.h>
- #include "TouchScreen.h"
-
- // These are the pins for the shield!
- #define YP A1 // must be an analog pin, use "An" notation!
- #define XM A2 // must be an analog pin, use "An" notation!
- #define YM 7 // can be a digital pin
- #define XP 6 // can be a digital pin
-
- #define MINPRESSURE 10
- #define MAXPRESSURE 1000
-
- // For better pressure precision, we need to know the resistance
- // between X+ and X- Use any multimeter to read it
- // For the one we're using, its 300 ohms across the X plate
- TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
-
- void setup(void) {
- Serial.begin(9600);
- }
-
- void loop(void) {
- // a point object holds x y and z coordinates
- TSPoint p = ts.getPoint();
-
- // we have some minimum pressure we consider 'valid'
- // pressure of 0 means no pressing!
- if (p.z > MINPRESSURE && p.z < MAXPRESSURE) {
- Serial.print("X = "); Serial.print(p.x);
- Serial.print("\tY = "); Serial.print(p.y);
- Serial.print("\tPressure = "); Serial.println(p.z);
- }
- }
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