#include <Wire.h> // include Wire library
#include <LiquidCrystal_I2C.h> // include LiquidCrystal_I2C library
#include <IRremote.h> // include IRremote library
int I2Caddress = 0x3F; // address of I2C bus
int LCDcol = 16; // define the number of LCD columns
int LCDrow = 4; // define the number of LCD rows
// associate lcd with LiquidCrystal_I2C library, define LCD address and size
LiquidCrystal_I2C lcd(I2Caddress,LCDcol,LCDrow);
int IRpin = A0; // IR sensor pin
IRrecv irrecv(IRpin); // associate irrecv with IRremote library
decode_results reading; // IRremote reading
void setup()
{
lcd.init(); // initialise LCD
irrecv.enableIRIn(); // initialise the IR receiver
}
void loop()
{
if(irrecv.decode(&reading)) // read the IR signal
{
translateIR(); // function to map signal to display string
irrecv.resume(); // receive the next infrared signal
delay(1000); // delay before next IR signal
}
}
void translateIR() // function to determine display string
{
switch(reading.value) // switch case rather than a series of if else instructions
{ // string equal to text plus elapsed time
case 0xFF6897: displ("Outcome "+String(millis()/1000)); break;
// string equal to signal in hexadecimal
case 0xFF30CF: displ("Result "+String(reading.value,HEX)); break;
// string equal to signal in decimal
case 0xFF18E7: displ("Event "+String(reading.value,DEC)); break;
default: displ("Not valid"); // default display
}
}
void displ(String s) // function to display string on LCD
{
lcd.print(s); // display string on LCD
delay(2000); // delay 2000ms
lcd.clear(); // clear LCD display and move cursor to zero position
}