1	const byte interruptPin_1 = 2;
2	const byte interruptPin_2 = 3;
3
4	volatile unsigned long minElapsed = 100L;
5	volatile unsigned long elapsedTime;
6	volatile unsigned long previousTime = millis();
7
8	unsigned long t0 = 0L;
9	unsigned long t1 = 0L;
10
11	int TA;
12	int TR;
13
14
15	bool teste = false;
16
17	void setup() {
18	Serial.begin(115200);
19
20	pinMode(interruptPin_1, INPUT_PULLUP);
21	pinMode(interruptPin_2, INPUT_PULLUP);
22	attachInterrupt(digitalPinToInterrupt(interruptPin_1),tapete,CHANGE);
23	attachInterrupt(digitalPinToInterrupt(interruptPin_2),saco,CHANGE);
24
25	}
26
27	void loop(){
28	if (teste){
29	Serial.print(TA);
30	Serial.print(“;”);
31	Serial.println(TR);
32	teste = false;
33	}
34	}
35
36	void tapete(){
37	elapsedTime = millis() − previousTime;
38	if (elapsedTime > minElapsed){   //true interrupt
39	previousTime = millis();
40	delay(5);
41	if (digitalRead(interruptPin_1)){
42	if (t0){
43	Serial.println(“Contato Tapete—Fim”);
44	TA = t1 − t0;
45	TR = previousTime − t1;
46	teste = true;
47	t0 = 0L;
48	t1 = 0L;
49	}
50	else {
51	Serial.println(“Contato Tapete—Inicio”);
52	t0 = 0L;
53	t1 = 0L;
54	}
55	}
56	else {
57	if (!t0){
58	Serial.println(“Saida Tapete—T0”);
59	t0 = previousTime;
60	}
61	}
62	}
63	}
64
65	void saco(){
66	elapsedTime = millis() − previousTime;
67	if (elapsedTime > minElapsed){  //true interrupt
68	previousTime = millis();
69	delay(5);
70	if (digitalRead(interruptPin_2)){
71	if (t0){
72	Serial.println(“Contato Saco—T1”);
73	t1 = previousTime;
74	}
75	}
76	}
77	}