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display.h
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display.h
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#ifndef DISPLAY_H
#define DISPLAY_H
// for syntax highlighting
#include "usb_api.h"
#include "LiquidCrystal.h"
// includes
#include "pushbutton.h"
// hardware objects
LiquidCrystal lcd(20, 21, 22, 23, 24, 25); // LCD Pins RS, Enable, D4 to D7
// X-Plane objects
FlightSimInteger COM1FrequencyHz;
FlightSimInteger COM1StdbyFreqencyHz;
FlightSimInteger COM2FrequencyHz;
FlightSimInteger COM2StdbyFrequencyHz;
FlightSimInteger NAV1FrequencyHz;
FlightSimInteger NAV1StdbyFrequencyHz;
FlightSimInteger NAV2FrequencyHz;
FlightSimInteger NAV2StdbyFrequencyHz;
FlightSimInteger ADFFrequencyHz;
FlightSimInteger ADFStdbyFrequencyHz;
FlightSimInteger TransponderCode;
// variables
boolean display_init = false;
boolean display_wait = false;
// declarations
void update_lcd(long var);
// setup function ist called once when Teensy boots
void setup_display()
{
// initialize lcd hardware
lcd.begin(20, 4); // LCD rows and columns
lcd.clear(); // clear the LCD
lcd.noCursor(); // do not display cursor
// display startup message
lcd.setCursor(3, 0);
lcd.print("RADIO PANEL");
delay(1000);
lcd.setCursor(8, 1);
lcd.print("for");
delay(1000);
lcd.setCursor(6, 2);
lcd.print("X-plane");
delay(1000);
lcd.setCursor(3, 3);
lcd.print("Version 1.00");
delay(10000);
// print fixed labels on lcd-display
lcd.setCursor(0,0); // set cursor to x/y position
lcd.print("COM1"); // print to lcd
lcd.setCursor(0,1); // set cursor to x/y position
lcd.print("COM2"); // print to lcd
lcd.setCursor(0,2); // set cursor to x/y position
lcd.print("NAV1"); // print to lcd
lcd.setCursor(0,3); // set cursor to x/y position
lcd.print("ADF"); // print to lcd
lcd.setCursor(10,3); // set cursor to x/y position
lcd.print("TRANS"); // print to lcd
lcd.setCursor(12,0); // set cursor to x/y position
lcd.print("*"); // print to lcd
lcd.setCursor(12,1); // set cursor to x/y position
lcd.print("*"); // print to lcd
lcd.setCursor(12,2); // set cursor to x/y position
lcd.print("*"); // print to lcd
// configure the X-Plane variables
COM1FrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/com1_frequency_hz");
COM1StdbyFreqencyHz = XPlaneRef("sim/cockpit2/radios/actuators/com1_standby_frequency_hz");
COM1FrequencyHz.onChange(update_lcd);
COM1StdbyFreqencyHz.onChange(update_lcd);
COM2FrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/com2_frequency_hz");
COM2StdbyFrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/com2_standby_frequency_hz");
COM2FrequencyHz.onChange(update_lcd);
COM2StdbyFrequencyHz.onChange(update_lcd);
NAV1FrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/nav1_frequency_hz");
NAV1StdbyFrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/nav1_standby_frequency_hz");
NAV1FrequencyHz.onChange(update_lcd);
NAV1StdbyFrequencyHz.onChange(update_lcd);
NAV2FrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/nav2_frequency_hz");
NAV2StdbyFrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/nav2_standby_frequency_hz");
NAV2FrequencyHz.onChange(update_lcd);
NAV2StdbyFrequencyHz.onChange(update_lcd);
ADFFrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/adf1_frequency_hz");
ADFStdbyFrequencyHz = XPlaneRef("sim/cockpit2/radios/actuators/adf1_standby_frequency_hz");
ADFFrequencyHz.onChange(update_lcd);
ADFStdbyFrequencyHz.onChange(update_lcd);
TransponderCode = XPlaneRef("sim/cockpit2/radios/actuators/transponder_code");
TransponderCode.onChange(update_lcd);
}
// loop function is repeatedly called as long as Teensy is powered up
void loop_display()
{
if (FlightSim.isEnabled()) // X-plane running?
{
display_wait = false;
if (display_init == false) // only once to prevent flickering!
{
lcd.clear(); // clear display
// print fixed labels on lcd-display
lcd.setCursor(0,0); // set cursor to x/y position
lcd.print("COM1"); // print to lcd
lcd.setCursor(0,1); // set cursor to x/y position
lcd.print("COM2"); // print to lcd
lcd.setCursor(0,2); // set cursor to x/y position
lcd.print("NAV1"); // print to lcd
lcd.setCursor(0,3); // set cursor to x/y position
lcd.print("ADF"); // print to lcd
lcd.setCursor(10,3); // set cursor to x/y position
lcd.print("TRANS"); // print to lcd
lcd.setCursor(12,0); // set cursor to x/y position
lcd.print("*"); // print to lcd
lcd.setCursor(12,1); // set cursor to x/y position
lcd.print("*"); // print to lcd
lcd.setCursor(12,2); // set cursor to x/y position
lcd.print("*"); // print to lcd
update_lcd(0); // write values to lcd
display_init = true; // display is initialized
}
}
else
{
display_init = false;
if (display_wait == false) // only once to prevent flickering!
{
lcd.clear();
// display waiting message
lcd.setCursor(4, 0); // set cursor to x/y position
lcd.print("Waiting for"); // print to lcd
lcd.setCursor(5, 1); // set cursor to x/y position
lcd.print("X-plane &"); // print to lcd
lcd.setCursor(3, 2); // set cursor to x/y position
lcd.print("Teensy-plugin"); // print to lcd
lcd.setCursor(4, 3); // set cursor to x/y position
lcd.print("to connect"); // print to lcd
display_wait = true;
}
}
}
void update_lcd(long var)
{
// COM1
lcd.setCursor(5, 0);
lcd.print(COM1FrequencyHz);
lcd.setCursor(13, 0);
lcd.print(COM1StdbyFreqencyHz);
if (com1_big)
{
lcd.setCursor(12, 0);
lcd.print("*");
lcd.setCursor(19, 0);
lcd.print(" ");
}
else
{
lcd.setCursor(12, 0);
lcd.print(" ");
lcd.setCursor(19, 0);
lcd.print("*");
}
//COM2
lcd.setCursor(5, 1);
lcd.print(COM2FrequencyHz);
lcd.setCursor(13, 1);
lcd.print(COM2StdbyFrequencyHz);
if (com2_big)
{
lcd.setCursor(12, 1);
lcd.print("*");
lcd.setCursor(19, 1);
lcd.print(" ");
}
else
{
lcd.setCursor(12, 1);
lcd.print(" ");
lcd.setCursor(19, 1);
lcd.print("*");
}
//NAV1
lcd.setCursor(5, 2);
lcd.print(NAV1FrequencyHz);
lcd.setCursor(13, 2);
lcd.print(NAV1StdbyFrequencyHz);
if (nav1_big)
{
lcd.setCursor(12, 2);
lcd.print("*");
lcd.setCursor(19, 2);
lcd.print(" ");
}
else
{
lcd.setCursor(12, 2);
lcd.print(" ");
lcd.setCursor(19, 2);
lcd.print("*");
}
//ADF
lcd.setCursor(4, 3);
lcd.print(ADFFrequencyHz);
//Transponder
lcd.setCursor(16, 3);
lcd.print (TransponderCode);
}
#endif // DISPLAY_H