Code:
/*
* LCDIRDecoder.pde: Freeduino/Arduino + cheaphousetek LCDKeypad Shield + IR Reveiver Breakout
* Ken Shirriff's IRremote.h page
* Original from Cooper Maa
* Modified on Jan. 31, 2013 by Befun Hung to fit pins of cheaphousetek LCD Keypad Shield
*/
#include <LiquidCrystal.h> // include LiquidCrystal library
#include <IRremote.h> // include IRRemote library
LiquidCrystal lcd(8, 9, 4, 5, 6, 7); // modified to fit cheaphousetek LcdKeypad Shield
const int irReceiverPin = 2; // IR Breakout Output Pin: Digital 2
IRrecv irrecv(irReceiverPin); // define IRrecv object to receive IR singal
decode_results results; // decoded result is stored to variable rusult of struct decode_results
void setup() {
lcd.begin(16, 2); // set numbers of rows and columns of LCD
lcd.print("IR Decoder"); // print "IR Decoder" message on LCD
irrecv.blink13(true); // blinking pin 13 lcd on receiving IR singal
irrecv.enableIRIn(); // start IR decode
}
// display IR protocol
void showIRProtocol(decode_results *results)
{
// judge IR protocol
switch(results->decode_type) {
case NEC:
lcd.print("NEC");
break;
case SONY:
lcd.print("SONY");
break;
case RC5:
lcd.print("RC5");
break;
case RC6:
lcd.print("RC6");
break;
default:
lcd.print("Unknown");
}
// print IR code on LCD
lcd.print(" ");
lcd.print(results->value, HEX); // IR code
lcd.print(" (");
lcd.print(results->bits); // bytes of IR code
lcd.print(")");
}
void loop() {
// set cursor to column 0, line 1
// Note: line 1 is the second row，line 0 is the first row
lcd.setCursor(0, 1);
if (irrecv.decode(&results)) { // successful decode, receiving a set of IR singal
showIRProtocol(&results); // display IR protocol
irrecv.resume(); // continue to receive the next IR singal
}
}
