1 #include <CapacitiveSensor.h>
4 * CapitiveSense Library Demo Sketch
6 * Uses a high value resistor e.g. 10M between send pin and receive pin
7 * Resistor effects sensitivity, experiment with values, 50K - 50M. Larger resistor values yield larger sensor values.
8 * Receive pin is the sensor pin - try different amounts of foil/metal on this pin
10 * Schema: http://i.stack.imgur.com/FMI00.png
16 CapacitiveSensor cs_2_3 = CapacitiveSensor(2, 3); // 10M resistor between pins 4 & 2, pin 2 is sensor pin, add a wire and or foil if desired
17 CapacitiveSensor cs_2_4 = CapacitiveSensor(2, 4);
18 CapacitiveSensor cs_2_5 = CapacitiveSensor(2, 5);
20 const int led = 13; // pin that the Led is attached to
21 int sensorMin = 50; // minimum sensor value
22 int sensorMax = 3200; // maximum sensor value
24 // Carica un file di esempio con tutte le note
26 int notes[] = {NOTE_C4, NOTE_E4,NOTE_G5 }; // suona una prima, quinta, ottava
30 const int piezo_pin = 9;
35 cs_2_3.set_CS_AutocaL_Millis(0xFFFFFFFF); // turn off autocalibrate on channel 1 - just as an example
36 //Serial.begin(9600); // Disable Serial to make it fastw
38 pinMode(piezo_pin, OUTPUT);
43 long start = millis();
44 long total1 = cs_2_3.capacitiveSensor(30);
45 long total2 = cs_2_4.capacitiveSensor(30);
46 long total3 = cs_2_5.capacitiveSensor(30);
48 if (total1 > (sensorMax / 2 - sensorMin)) {
49 tone(piezo_pin, notes[0], 50); // Notes array is translated
50 Serial.println("Primo");
53 if (total2 > (sensorMax / 2 - sensorMin)) {
54 tone(piezo_pin, notes[1], 50); // Notes array is translated
55 Serial.println("Secondo");
58 if (total3 > (sensorMax / 2 - sensorMin)) {
59 tone(piezo_pin, notes[2], 50); // Notes array is translated
60 Serial.println("terzo");
63 Serial.print(millis() - start); // check on performance in milliseconds
64 Serial.print("\t Capacitance 1: "); // tab character for debug windown spacing
66 Serial.print(total1); // print sensor output 1
67 Serial.print("\t 2: "); // tab character for debug windown spacing
69 Serial.print(total2); // print sensor output 1
70 Serial.print("\t 3: "); // tab character for debug windown spacing
71 Serial.println(total3); // print sensor output 1