Capacitance fir st commit,

[sketchbook_andrea] / advanced_projects / capacitance / piezo_triple_fast / piezo_triple_fast.ino

diff --git a/advanced_projects/capacitance/piezo_triple_fast/piezo_triple_fast.ino b/advanced_projects/capacitance/piezo_triple_fast/piezo_triple_fast.ino
new file mode 100644 (file)
index 0000000..7e5e17a
--- /dev/null
+++ b/advanced_projects/capacitance/piezo_triple_fast/piezo_triple_fast.ino
@@ -0,0 +1,74 @@
+#include <CapacitiveSensor.h>
+#include "pitches.h"
+/*
+ * CapitiveSense Library Demo Sketch
+ * Paul Badger 2008
+ * Uses a high value resistor e.g. 10M between send pin and receive pin
+ * Resistor effects sensitivity, experiment with values, 50K - 50M. Larger resistor values yield larger sensor values.
+ * Receive pin is the sensor pin - try different amounts of foil/metal on this pin
+ *
+ * Schema: http://i.stack.imgur.com/FMI00.png
+ */
+
+
+
+
+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
+CapacitiveSensor   cs_2_4 = CapacitiveSensor(2, 4);
+CapacitiveSensor   cs_2_5 = CapacitiveSensor(2, 5);
+
+const int led = 13;        // pin that the Led is attached to
+int sensorMin = 50;        // minimum sensor value
+int sensorMax = 3200;           // maximum sensor value
+
+// Carica un file di esempio con tutte le note
+
+ int notes[] = {NOTE_C4, NOTE_E4,NOTE_G5 }; // suona una prima, quinta, ottava
+
+
+
+const int piezo_pin = 9;
+
+
+void setup()
+{
+  cs_2_3.set_CS_AutocaL_Millis(0xFFFFFFFF);     // turn off autocalibrate on channel 1 - just as an example
+  //Serial.begin(9600);         // Disable Serial to make it fastw
+  pinMode(led, OUTPUT);
+  pinMode(piezo_pin, OUTPUT);
+}
+
+void loop()
+{
+  long start = millis();
+  long total1 =  cs_2_3.capacitiveSensor(30);
+  long total2 =  cs_2_4.capacitiveSensor(30);
+  long total3 =  cs_2_5.capacitiveSensor(30);
+
+  if (total1 > (sensorMax / 2 - sensorMin)) {
+    tone(piezo_pin, notes[0], 50); // Notes array is translated
+    Serial.println("Primo");
+  }
+
+  if (total2 > (sensorMax / 2 - sensorMin)) {
+    tone(piezo_pin, notes[1], 50); // Notes array is translated
+    Serial.println("Secondo");
+  }
+
+  if (total3 > (sensorMax / 2 - sensorMin)) {
+    tone(piezo_pin, notes[2], 50); // Notes array is translated
+    Serial.println("terzo");
+  }
+
+  Serial.print(millis() - start);        // check on performance in milliseconds
+  Serial.print("\t Capacitance 1: ");                    // tab character for debug windown spacing
+
+  Serial.print(total1);                  // print sensor output 1
+  Serial.print("\t 2: ");                    // tab character for debug windown spacing
+
+  Serial.print(total2);                  // print sensor output 1
+  Serial.print("\t 3: ");                    // tab character for debug windown spacing
+  Serial.println(total3);                  // print sensor output 1
+
+}
+