touch-detect
bradzilla84/touch-adafruit/touch-detect
Detect Touch and output Raw XY
touch-detect
@/touch-detect
Detect Touch and output Raw XY
IN@/touch-device
YPport
YP Pin (Some display's share pins with the touch Screen set this to your YP Pin to Workarround)
XMport
XM Pin (Some display's share pins with the touch Screen set this to your XM Pin to Workarround)
INITpulse
Check for Touch (just leave set to Continuously to recive touch evets on the TouchDetected pin)
TouchDetectedpulse
Pulse on Touch Detected
Pressurenumber
Pressure Applied
Ynumber
Y Location
Xnumber
X Location
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
// The node responds only if there is an input pulse
if (!isInputDirty<input_INIT>(ctx))
return;
// Get a pointer to the class instance
auto ts = getValue<input_IN>(ctx);
// a point object holds x y and z coordinates
TSPoint p = ts->getPoint();
pinMode(getValue<input_XM>(ctx), OUTPUT); //restore shared pins
pinMode(getValue<input_YP>(ctx), OUTPUT);
digitalWrite(getValue<input_XM>(ctx), HIGH); //because TFT control pins
digitalWrite(getValue<input_YP>(ctx), HIGH);
// we have some minimum pressure we consider 'valid'
// pressure of 0 means no pressing above 500 is error!
if (p.z > 0 && p.z < 500) {
emitValue<output_X>(ctx, p.x);
emitValue<output_Y>(ctx, p.y);
emitValue<output_Pressure>(ctx, p.z);
emitValue<output_TouchDetected>(ctx, 1);
}
}