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| //#define DEBUG true
class CapaSensor {
private:
int vCtrlPin;
int vSensingPin;
int vTryNumber;
int vThreshold;
public:
CapaSensor(int aCtrlPin, int aSensingPin, int aTryNumber) {
pinMode(aCtrlPin, OUTPUT);
pinMode(aSensingPin, INPUT);
vCtrlPin = aCtrlPin;
vSensingPin = aSensingPin;
vTryNumber = aTryNumber;
vThreshold = (int)(read() * 1.2);
#if DEBUG
Serial.print("CapaSensor[");
Serial.print(vCtrlPin);
Serial.print("-");
Serial.print(vSensingPin);
Serial.print("x");
Serial.print(aTryNumber);
Serial.print(">");
Serial.println(vThreshold);
#endif
}
int read() {
int ret = 0;
for(int i = 0; i < vTryNumber; i++) {
int cnt = 0;
digitalWrite(vCtrlPin, HIGH);
while(digitalRead(vSensingPin) < HIGH) {
cnt++;
}
if (ret < cnt) ret = cnt;
digitalWrite(vCtrlPin, LOW);
delay(5);
}
return ret;
}
int touched() {
int ret = 0;
for(int i = 0; i < vTryNumber; i++) {
int cnt = 0;
digitalWrite(vCtrlPin, HIGH);
while(digitalRead(vSensingPin) < HIGH) {
cnt++;
if (cnt > vThreshold) {
return true;
#if DEBUG
Serial.print("@-");
Serial.print(vThreshold);
Serial.print(" <? ");
Serial.println(cnt);
#endif
}
}
if (ret < cnt) ret = cnt;
digitalWrite(vCtrlPin, LOW);
delay(5);
}
#if DEBUG
Serial.print(ret > vThreshold ? "@ " : " ");
Serial.print(vThreshold);
Serial.print(" <? ");
Serial.println(ret);
#endif
return ret > vThreshold;
}
};
int oLed = 13;
CapaSensor* capa;
void setup() {
Serial.begin(9600);
Serial.print("Setup");
analogWrite(oLed, 0);
capa = new CapaSensor(8,9,10);
}
void loop() {
analogWrite(oLed, capa->touched()?128:0);
delay(100);
}
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