Hey all,
I'm having some trouble with this sketck. It's lady Ada's IRComadander Sketch with my own ir commands added in. As you can see in the code below the last two else if statements in the void loop() function are commented out. That is because if i try and include them the Serial interface bug's out and doesn't output anything. I can't see why this is happening.... The tx lights on my arduino uno flashes when they're supposed to but nothing is displayed on the screen.
Any and all advice/suggestions are apreciated.
Cheers,
DRex
/* Raw IR commander
This sketch/program uses the Arduno and a PNA4602 to
decode IR received. It then attempts to match it to a previously
recorded IR signal
Code is public domain, check out www.ladyada.net and adafruit.com
for more tutorials!
*/
// We need to use the 'raw' pin reading methods
// because timing is very important here and the digitalRead()
// procedure is slower!
//uint8_t IRpin = 2;
// Digital pin #2 is the same as Pin D2 see
// http://arduino.cc/en/Hacking/PinMapping168 for the 'raw' pin mapping
#define IRpin_PIN PIND
#define IRpin 2
// the maximum pulse we'll listen for - 65 milliseconds is a long time
#define MAXPULSE 65000
// what our timing resolution should be, larger is better
// as its more 'precise' - but too large and you wont get
// accurate timing
#define RESOLUTION 20
// What percent we will allow in variation to match the same code
#define FUZZINESS 10
// we will store up to 100 pulse pairs (this is -a lot-)
uint16_t pulses[100][2]; // pair is high and low pulse
uint8_t currentpulse = 0; // index for pulses we're storing
#include "ircodes.h"
void setup(void) {
Serial.begin(9600);
Serial.println("Ready to decode IR!");
}
void loop(void) {
int numberpulses;
numberpulses = listenForIR();
Serial.print("Heard ");
Serial.print(numberpulses);
Serial.println("-pulse long IR signal");
if (IRcompare(numberpulses, CenterB)) {
Serial.println("Center Button");
}
else if (IRcompare(numberpulses, RightB)) {
Serial.println("Right Button");
}
else if (IRcompare(numberpulses, UpB)) {
Serial.println("Up Button");
}
// else if (IRcompare(numberpulses, LeftB)) {
// Serial.println("Left Button");
// }
// else if (IRcompare(numberpulses, DownB)) {
// Serial.println("Down Button");
// }
}
boolean IRcompare(int numpulses, int Signal[]) {
for (int i=0; i< numpulses-1; i++) {
int oncode = pulses[i][1] * RESOLUTION / 10;
int offcode = pulses[i+1][0] * RESOLUTION / 10;
/*
Serial.print(oncode); // the ON signal we heard
Serial.print(" - ");
Serial.print(Signal[i*2 + 0]); // the ON signal we want
*/
// check to make sure the error is less than FUZZINESS percent
if ( abs(oncode - Signal[i*2 + 0]) <= (Signal[i*2 + 0] * FUZZINESS / 100)) {
//Serial.print(" (ok)");
} else {
//Serial.print(" (x)");
// we didn't match perfectly, return a false match
return false;
}
/*
Serial.print(" \t"); // tab
Serial.print(offcode); // the OFF signal we heard
Serial.print(" - ");
Serial.print(Signal[i*2 + 1]); // the OFF signal we want
*/
if ( abs(offcode - Signal[i*2 + 1]) <= (Signal[i*2 + 1] * FUZZINESS / 100)) {
//Serial.print(" (ok)");
} else {
//Serial.print(" (x)");
// we didn't match perfectly, return a false match
return false;
}
//Serial.println();
}
// Everything matched!
return true;
}
int listenForIR(void) {
currentpulse = 0;
while (1) {
uint16_t highpulse, lowpulse; // temporary storage timing
highpulse = lowpulse = 0; // start out with no pulse length
// while (digitalRead(IRpin)) { // this is too slow!
while (IRpin_PIN & (1 << IRpin)) {
// pin is still HIGH
// count off another few microseconds
highpulse++;
delayMicroseconds(RESOLUTION);
// If the pulse is too long, we 'timed out' - either nothing
// was received or the code is finished, so print what
// we've grabbed so far, and then reset
if ((highpulse >= MAXPULSE) && (currentpulse != 0) || currentpulse>=63) {
return currentpulse;
}
}
// we didn't time out so lets stash the reading
pulses[currentpulse][0] = highpulse;
// same as above
while (! (IRpin_PIN & _BV(IRpin))) {
// pin is still LOW
lowpulse++;
delayMicroseconds(RESOLUTION);
if ((lowpulse >= MAXPULSE) && (currentpulse != 0)|| currentpulse>63) {
return currentpulse;
}
}
pulses[currentpulse][1] = lowpulse;
// we read one high-low pulse successfully, continue!
currentpulse++;
}
}
void printpulses(void) {
Serial.println("\n\r\n\rReceived: \n\rOFF \tON");
for (uint8_t i = 0; i < currentpulse; i++) {
Serial.print(pulses[i][0] * RESOLUTION, DEC);
Serial.print(" usec, ");
Serial.print(pulses[i][1] * RESOLUTION, DEC);
Serial.println(" usec");
}
// print it in a 'array' format
Serial.println("int IRsignal[] = {");
Serial.println("// ON, OFF (in 10's of microseconds)");
for (uint8_t i = 0; i < currentpulse-1; i++) {
Serial.print("\t"); // tab
Serial.print(pulses[i][1] * RESOLUTION / 10, DEC);
Serial.print(", ");
Serial.print(pulses[i+1][0] * RESOLUTION / 10, DEC);
Serial.println(",");
}
Serial.print("\t"); // tab
Serial.print(pulses[currentpulse-1][1] * RESOLUTION / 10, DEC);
Serial.print(", 0};");
}