starting final code : Keyboard class

.pioenvs/structure.hash

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-5b5b88025335f306e0a3618fe34989e446b2df4b
-=======
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->>>>>>> a60abe1c71fdccfddb532c4d4cf5d21b381f314a
+5b5b88025335f306e0a3618fe34989e446b2df4b

lib/Keyboard.h

@@ -0,0 +1,15 @@
+#ifndef _KEYBOARD_H_
+#define _KEYBOARD_H_
+
+class Keyboard {
+public:
+	Keyboard();
+	~Keyboard();
+
+	int getKey();
+private:
+
+
+}
+
+#endif

src/main.cpp

@@ -1,28 +1,38 @@
 #include <Arduino.h>
-// #include <Multiplexer.h>
 #include <MIDI_Controller.h>
 
 #define s * 1000
-#define TOTAL_LINES 4
 
 /* Pins */
-/* - analogs */
-unsigned char muxSignal{A1};
-/* - digitals */
-int muxSelector[TOTAL_LINES]{18, 14, 15, 16};
+/* GPIO (I2C) */
+const unsigned char gpio_int{0};
+const unsigned char sda{2};
+const unsigned char scl{3};
+/* Multiplexer */
+#define MUX_ADDRSIZE 5
+const unsigned char mux_sig{A10};
+const unsigned char mux_addr[MUX_ADDRSIZE]{15, 21, 20, 19, 18};
+/* ShiftRegister (OUT) */
+#define SHIFT_OUTPUTSIZE 4
+const unsigned char shift_data{14};
+const unsigned char shift_latch{16};
+const unsigned char shift_clock{1};
+/* keyboard (IN) */
+#define KEYBOARD_SIZE 6
+const unsigned char keyboard[KEYBOARD_SIZE]{4, 5, 6, 7, 8, 9};
 
 /* Components */
-// Multiplexer m(muxSignal, TOTAL_LINES, muxSelector);
-AnalogMultiplex multiplexer(A1, {18, 14, 15, 16});
+/* GPIO (I2C) */
+/* Multiplexer */
+AnalogMultiplex multiplexer(mux_sig, mux_addr);
+/* ShiftRegister (OUT) */
+ShiftRegisterOut shiftRegister(shift_data, shift_clock, shift_latch, MSBFIRST, SHIFT_OUTPUTSIZE);
+/* keyboard (IN) */
 
 /* Midi links */
 //USBDebugMIDI_Interface midiInterface(115200);
 
 Analog potentiometers[] = {
-	{multiplexer.pin(0), MIDI_CC::Channel_Volume, 1},
-	{multiplexer.pin(1), MIDI_CC::Channel_Volume, 2},
-	{multiplexer.pin(2), MIDI_CC::Channel_Volume, 3},
-	{multiplexer.pin(3), MIDI_CC::Channel_Volume, 4},
 	{multiplexer.pin(4), MIDI_CC::Channel_Volume, 5},
 	{multiplexer.pin(5), MIDI_CC::Channel_Volume, 6},
 	{multiplexer.pin(6), MIDI_CC::Channel_Volume, 7},

src/mainTest.cpp

@@ -0,0 +1,182 @@
+#include <Arduino.h>
+// #include <Multiplexer.h>
+#include <MIDI_Controller.h>
+
+#define s * 1000
+#define TOTAL_LINES 4
+
+/* Pins */
+/* - analogs */
+unsigned char muxSignal{A1};
+/* - digitals */
+int muxSelector[TOTAL_LINES]{18, 14, 15, 16};
+
+/* Components */
+// Multiplexer m(muxSignal, TOTAL_LINES, muxSelector);
+AnalogMultiplex multiplexer(A1, {18, 14, 15, 16});
+
+/* Midi links */
+//USBDebugMIDI_Interface midiInterface(115200);
+
+Analog potentiometers[] = {
+	{multiplexer.pin(0), MIDI_CC::Channel_Volume, 1},
+	{multiplexer.pin(1), MIDI_CC::Channel_Volume, 2},
+	{multiplexer.pin(2), MIDI_CC::Channel_Volume, 3},
+	{multiplexer.pin(3), MIDI_CC::Channel_Volume, 4},
+	{multiplexer.pin(4), MIDI_CC::Channel_Volume, 5},
+	{multiplexer.pin(5), MIDI_CC::Channel_Volume, 6},
+	{multiplexer.pin(6), MIDI_CC::Channel_Volume, 7},
+	{multiplexer.pin(7), MIDI_CC::Channel_Volume, 8}
+};
+
+/* Values */
+int val[16];
+int ref[16];
+
+uint8_t readCapacitivePin(int pinToMeasure);
+
+void setup() {
+	Serial.begin(115200);
+	while (Serial.available() == 0){
+		delay(.5 s);
+	}
+	// for (size_t i = 0; i < 4; i++) {
+		// ref[i] = multiplexer.analogRead(i);
+	// }
+	ref[8] = readCapacitivePin(2);
+	pinMode(0, OUTPUT);
+	pinMode(1, OUTPUT);
+	pinMode(9, OUTPUT);
+}
+
+long loopAverage = 0;
+long lastLoop = 0;
+bool on = false;
+
+void loop() {
+	// long start = millis();
+	// for (size_t i = 0; i < 4; i++) {
+	// 	val[i] = multiplexer.analogRead(i);
+	// 	if (val[i] != ref[i]) {
+	// 			Serial.print("p[");
+	// 			Serial.print(i, DEC);
+	// 			Serial.print("] = ");
+	// 			Serial.println(val[i], DEC);
+	// 		ref[i] = val[i];
+	//
+	// 	}
+	// }
+	val[8] = readCapacitivePin(2);
+	if (abs(val[8] - ref[8]) >= 2) {
+		if (val[8] > ref[8]) {
+			// Serial.print("loop() time : ");
+			// Serial.println(lastLoop, DEC);
+			// Serial.print("average : ");
+			// Serial.println(loopAverage, DEC);
+			Serial.println(val[8], DEC);
+		}
+		ref[8] = val[8];
+	}
+
+
+	// if (val[0] >= 500) {
+	// 	digitalWrite(0, HIGH);
+	// } else {
+	// 	digitalWrite(0, LOW);
+	// }
+	if (val[2] >= 500) {
+		digitalWrite(1, HIGH);
+	} else {
+		digitalWrite(1, LOW);
+	}
+
+	analogWrite(9, val[0] * 256 / 1024);
+
+	MIDI_Controller.refresh();
+	// lastLoop = millis() - start;
+	// loopAverage = (loopAverage + lastLoop) / 2;
+	//delay(.5 s);
+}
+
+uint8_t readCapacitivePin(int pinToMeasure) {
+	// Variables used to translate from Arduino to AVR pin naming
+	volatile uint8_t* port;
+	volatile uint8_t* ddr;
+	volatile uint8_t* pin;
+
+	// Here we translate the input pin number from
+	//  Arduino pin number to the AVR PORT, PIN, DDR,
+	//  and which bit of those registers we care about.
+
+	byte bitmask;
+	port = portOutputRegister(digitalPinToPort(pinToMeasure));
+	ddr = portModeRegister(digitalPinToPort(pinToMeasure));
+	bitmask = digitalPinToBitMask(pinToMeasure);
+	pin = portInputRegister(digitalPinToPort(pinToMeasure));
+
+	// Discharge the pin first by setting it low and output
+	*port &= ~(bitmask);
+	*ddr  |= bitmask;
+	delay(1);
+	uint8_t SREG_old = SREG; //back up the AVR Status Register
+	// Prevent the timer IRQ from disturbing our measurement
+	noInterrupts();
+
+	// Make the pin an input with the internal pull-up on
+	*ddr &= ~(bitmask);
+	*port |= bitmask;
+
+	// Now see how long the pin to get pulled up. This manual unrolling of the loop
+	// decreases the number of hardware cycles between each read of the pin,
+	// thus increasing sensitivity.
+	uint8_t cycles = 17;
+
+	if (*pin & bitmask) {
+		cycles =  0;
+	} else if (*pin & bitmask) {
+		cycles =  1;
+	} else if (*pin & bitmask) {
+		cycles =  2;
+	} else if (*pin & bitmask) {
+		cycles =  3;
+	} else if (*pin & bitmask) {
+		cycles =  4;
+	} else if (*pin & bitmask) {
+		cycles =  5;
+	} else if (*pin & bitmask) {
+		cycles =  6;
+	} else if (*pin & bitmask) {
+		cycles =  7;
+	} else if (*pin & bitmask) {
+		cycles =  8;
+	} else if (*pin & bitmask) {
+		cycles =  9;
+	} else if (*pin & bitmask) {
+		cycles = 10;
+	} else if (*pin & bitmask) {
+		cycles = 11;
+	} else if (*pin & bitmask) {
+		cycles = 12;
+	} else if (*pin & bitmask) {
+		cycles = 13;
+	} else if (*pin & bitmask) {
+		cycles = 14;
+	} else if (*pin & bitmask) {
+		cycles = 15;
+	} else if (*pin & bitmask) {
+		cycles = 16;
+	}
+
+	// End of timing-critical section; turn interrupts back on if they were on before, or leave them off if they were off before
+	SREG = SREG_old;
+
+	// Discharge the pin again by setting it low and output
+	//  It's important to leave the pins low if you want to
+	//  be able to touch more than 1 sensor at a time - if
+	//  the sensor is left pulled high, when you touch
+	//  two sensors, your body will transfer the charge between
+	//  sensors.
+	*port &= ~(bitmask);
+	*ddr  |= bitmask;
+	return cycles;
+}