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// ESP32 Touch Test
// Just test touch pin - Touch0 is T0 which is on GPIO 4.
 
void setup()
{
  Serial.begin(115200);
  delay(1000); // give me time to bring up serial monitor
  Serial.println("ESP32 Touch Test");
}
 
void loop()
{
  Serial.println(touchRead(T0));  // get value using T0
  delay(1000);
}

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/*
This is un example howto use Touch Intrrerupts
The bigger the threshold, the more sensible is the touch
*/
 
int threshold = 40;
bool touch1detected = false;
bool touch2detected = false;
 
void gotTouch1(){
 touch1detected = true;
}
 
void gotTouch2(){
 touch2detected = true;
}
 
void setup() {
  Serial.begin(115200);
  delay(1000); // give me time to bring up serial monitor
  Serial.println("ESP32 Touch Interrupt Test");
  touchAttachInterrupt(T2, gotTouch1, threshold);
  touchAttachInterrupt(T3, gotTouch2, threshold);
}
 
void loop(){
  if(touch1detected){
    touch1detected = false;
    Serial.println("Touch 1 detected");
  }
  if(touch2detected){
    touch2detected = false;
    Serial.println("Touch 2 detected");
  }
}