Arduino Trimmrad zur Einstellung der Flugzeug-Trimmung (Teil 4)

PCF8574 pcf8574_0(0x20);

PCF8574 pcf8574_1(0x21);

Serial.begin(9600);
 
// https://forum.arduino.cc/index.php?topic=171889.0
// While the serial stream is not open, do nothing.
while (!Serial);
 
Serial.println("I2CScanner ready!");

/*
 * Arduino HID Trim Wheel
 *
 * Author	Jan Wischniowski
 * URL		https://www.metanox.de/
 * Version	0.8.2
 * License	GNU GENERAL PUBLIC LICENSE Version 3
*/
 
#include "Arduino.h"
#include "HID-Project.h"
#include "PCF8574.h"
 
// Initialize library
PCF8574 pcf8574_0(0x20);
PCF8574 pcf8574_1(0x21);
PCF8574 pcf8574_2(0x22);
PCF8574 pcf8574_3(0x23);
PCF8574 pcf8574_4(0x24);
 
// Arduino
const int arduino_led_1			= LED_BUILTIN;
 
// LED 0
const int led_0_red				= P0;
const int led_0_green			= P1;
const int led_0_blue			= P2;
 
// LED 1
const int led_1_red				= P0;
const int led_1_green			= P1;
const int led_1_blue			= P2;
 
// Rotary 0
const int rotary_0_switch		= P3;	// Pin 3 to SW (switch pin) on rotary encoder.
const int rotary_0_data			= P4;	// Pin 4 to DT (data) on rotary encoder.
const int rotary_0_clock		= P5;	// Pin 5 to CLK (clock) on rotary encoder.
volatile long rotary_0_value	= 1;	// Die Funktion readEncoderValue() liefert beim Start it 0 als ersten Wert -1. Also mit 1 Starten. Dann ist der erste Wert 0.
int rotary_0_x_axis				= 0;
bool rotary_0_button			= LOW;
bool rotary_0_changed			= false;
 
// Rotary 1
const int rotary_1_switch		= P3;	// Pin 3 to SW (switch pin) on rotary encoder.
const int rotary_1_data			= P4;	// Pin 4 to DT (data) on rotary encoder.
const int rotary_1_clock		= P5;	// Pin 5 to CLK (clock) on rotary encoder.
volatile long rotary_1_value	= 1;	// Die Funktion readEncoderValue() liefert beim Start it 0 als ersten Wert -1. Also mit 1 Starten. Dann ist der erste Wert 0.
int rotary_1_y_axis				= 0;
bool rotary_1_button			= LOW;
bool rotary_1_changed			= false;
 
void setup()
{
	unsigned long time_start = millis();
	const long timeout_serial = 1000; 
 
	Serial.begin(9600);
 
	// Warten bis der der Serial Stream geöffnet ist.
	// "while (!Serial)" endet bei einem USB-Reconnect oder einem Reset nicht. Aus diesem Grund soll die Schleife nach einem ausreichend langen Timeout abgebrochen werden.
	// https://forum.arduino.cc/index.php?topic=171889.0
	while (!Serial) { if (millis() - time_start >= timeout_serial) { break; } }
 
	Serial.println("SERIAL OK :)");
 
	pinMode(arduino_led_1, OUTPUT);
 
	pcf8574_0.pinMode(led_0_red, OUTPUT);
	pcf8574_0.pinMode(led_0_green, OUTPUT);
	pcf8574_0.pinMode(led_0_blue, OUTPUT);
 
	pcf8574_1.pinMode(led_1_red, OUTPUT);
	pcf8574_1.pinMode(led_1_green, OUTPUT);
	pcf8574_1.pinMode(led_1_blue, OUTPUT);
 
	pinMode(rotary_1_switch, INPUT_PULLUP);
	pinMode(rotary_1_clock, INPUT);
	pinMode(rotary_1_data, INPUT);
 
	pcf8574_0.pinMode(rotary_0_switch, INPUT);
	pcf8574_0.pinMode(rotary_0_clock, INPUT);
	pcf8574_0.pinMode(rotary_0_data, INPUT);
 
	pcf8574_1.pinMode(rotary_1_switch, INPUT);
	pcf8574_1.pinMode(rotary_1_clock, INPUT);
	pcf8574_1.pinMode(rotary_1_data, INPUT);
 
	pcf8574_0.encoder(rotary_0_data, rotary_0_clock); // Rotary 0 Pins
	pcf8574_0.pinMode(rotary_0_switch, INPUT_PULLUP); // Rotary 0 Button
	pcf8574_0.pinMode(P6, INPUT);
	pcf8574_0.pinMode(P7, INPUT_PULLUP);
 
	pcf8574_1.encoder(rotary_1_data, rotary_1_clock); // Rotary 1 Pins
	pcf8574_1.pinMode(rotary_1_switch, INPUT_PULLUP); // Rotary 1 Button
	pcf8574_1.pinMode(P6, INPUT);
	pcf8574_1.pinMode(P7, INPUT_PULLUP);
 
	// Sends a clean report to the host. This is important on any Arduino type.
	pcf8574_0.begin();
	pcf8574_1.begin();
	Gamepad.begin();
 
	if (pcf8574_0.begin())
	{
		Serial.println("PCF8574 OK :)");
	}
	else
	{
		Serial.println("PCF8574 KO :(");
	}
 
	pcf8574_0.digitalWrite(led_0_red, LOW);
	pcf8574_0.digitalWrite(led_0_green, LOW);
	pcf8574_0.digitalWrite(led_0_blue, LOW);
 
	pcf8574_1.digitalWrite(led_1_red, LOW);
	pcf8574_1.digitalWrite(led_1_green, LOW);
	pcf8574_1.digitalWrite(led_1_blue, LOW);
}
 
 
void loop()
{
	if (pcf8574_0.digitalRead(P6))
	{
		Serial.println("BUTTON PRSSED!");
	}
 
	rotary_0();
	rotary_1();
}
 
 
void rotary_0()
{
	rotary_0_changed = pcf8574_0.readEncoderValue(rotary_0_data, rotary_0_clock, &rotary_0_value);
 
	bool rotary_0_switch_value = pcf8574_0.digitalRead(rotary_0_switch);
	rotary_0_switch_value = !rotary_0_switch_value;
 
	if (rotary_0_switch_value!=rotary_0_button)
	{
		rotary_0_changed = true;
		rotary_0_button = rotary_0_switch_value;
 
		if (rotary_0_button)
		{
			digitalWrite(arduino_led_1, HIGH);
 
			// Button 1 gedrückt. X-Achse auf 0 zurücksetzen.
			Gamepad.press(1);
			Gamepad.write();
 
			rotary_0_value = rotary_0_x_axis = 0;
 
			pcf8574_0.digitalWrite(led_0_red, LOW);
			pcf8574_0.digitalWrite(led_0_green, LOW);
			pcf8574_0.digitalWrite(led_0_blue, HIGH);
		}
		else
		{
			digitalWrite(arduino_led_1, LOW);
 
			Gamepad.release(1);
			Gamepad.write();
 
			pcf8574_0.digitalWrite(led_0_red, LOW);
			pcf8574_0.digitalWrite(led_0_green, LOW);
			pcf8574_0.digitalWrite(led_0_blue, LOW);
		}
	}
 
	if (rotary_0_changed)
	{
		rotary_0_x_axis = rotary_0_value*500;
 
		if (0>rotary_0_x_axis)
		{
			pcf8574_0.digitalWrite(led_0_red, HIGH);
			pcf8574_0.digitalWrite(led_0_green, LOW);
		}
		else if (0<rotary_0_x_axis) { pcf8574_0.digitalWrite(led_0_red, LOW); pcf8574_0.digitalWrite(led_0_green, HIGH); } else { pcf8574_0.digitalWrite(led_0_red, LOW); pcf8574_0.digitalWrite(led_0_green, LOW); //pcf8574_0.digitalWrite(led_0_blue, LOW); } Serial.print("ENCODER 2 ENCODER VALUE: "); Serial.println(rotary_0_value); Serial.print("ENCODER 2 ENCODER BUTTON: "); Serial.println(rotary_0_button?"HIGH":"LOW"); Serial.print("ENCODER 2 VAR rotary_0_x_axis: "); Serial.println(rotary_0_x_axis); rotary_0_changed = false; Gamepad.rxAxis(rotary_0_x_axis); Gamepad.write(); } } void rotary_1() { rotary_1_changed = pcf8574_1.readEncoderValue(rotary_1_data, rotary_1_clock, &rotary_1_value); bool rotary_1_switch_value = pcf8574_1.digitalRead(rotary_1_switch); rotary_1_switch_value = !rotary_1_switch_value; if (rotary_1_switch_value!=rotary_1_button) { rotary_1_changed = true; rotary_1_button = rotary_1_switch_value; if (rotary_1_button) { digitalWrite(arduino_led_1, HIGH); // Button 2 gedrückt. Y-Achse auf 0 zurücksetzen. Gamepad.press(2); Gamepad.write(); rotary_1_value = rotary_1_y_axis = 0; //Serial.println ("Rotary 1 Button: Pressed"); pcf8574_1.digitalWrite(led_1_red, LOW); pcf8574_1.digitalWrite(led_1_green, LOW); pcf8574_1.digitalWrite(led_1_blue, HIGH); } else { digitalWrite(arduino_led_1, LOW); Gamepad.release(2); Gamepad.write(); pcf8574_1.digitalWrite(led_1_red, LOW); pcf8574_1.digitalWrite(led_1_green, LOW); pcf8574_1.digitalWrite(led_1_blue, LOW); } } if (rotary_1_changed) { rotary_1_y_axis = -rotary_1_value*500; if (0>rotary_1_y_axis)
		{
			pcf8574_1.digitalWrite(led_1_red, HIGH);
			pcf8574_1.digitalWrite(led_1_green, LOW);
		}
		else if (0<rotary_1_y_axis)
		{
			pcf8574_1.digitalWrite(led_1_red, LOW);
			pcf8574_1.digitalWrite(led_1_green, HIGH);
		}
		else
		{
			pcf8574_1.digitalWrite(led_1_red, LOW);
			pcf8574_1.digitalWrite(led_1_green, LOW);
			//pcf8574_1.digitalWrite(led_1_blue, LOW);
		}
 
		Serial.print("ENCODER 1 VALUE: ");
		Serial.println(rotary_1_value);
		Serial.print("ENCODER 1 BUTTON: ");
		Serial.println(rotary_1_button?"HIGH":"LOW");
		Serial.print("ENCODER 1 VAR rotary_1_y_axis: ");
		Serial.println(rotary_1_y_axis);
 
		rotary_1_changed = false;
 
		Gamepad.ryAxis(rotary_1_y_axis);
		Gamepad.write();
	}
}