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Working version for Apple remotes
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Ladyada
commit
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2 changed files with 291 additions and 0 deletions
123
ircodes.h
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123
ircodes.h
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@ -0,0 +1,123 @@
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/******************* our codes ************/
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int ApplePlaySignal[] = {
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// ON, OFF (in 10's of microseconds)
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912, 438,
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68, 48,
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68, 158,
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68, 158,
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68, 158,
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68, 48,
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68, 158,
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68, 158,
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68, 158,
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70, 156,
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70, 158,
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68, 158,
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68, 48,
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68, 46,
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70, 46,
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68, 46,
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68, 160,
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68, 158,
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70, 46,
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68, 158,
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68, 46,
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70, 46,
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68, 48,
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68, 46,
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68, 48,
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66, 48,
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68, 48,
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66, 160,
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66, 50,
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66, 160,
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66, 50,
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64, 160,
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66, 50,
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66, 3950,
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908, 214,
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66, 3012,
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908, 212,
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68, 0};
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int AppleForwardSignal[] = {
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// ON, OFF (in 10's of microseconds)
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908, 444,
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64, 50,
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66, 162,
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64, 162,
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64, 162,
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64, 52,
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64, 162,
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64, 162,
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64, 162,
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64, 164,
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62, 164,
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64, 162,
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64, 52,
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62, 52,
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64, 52,
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64, 50,
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64, 164,
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64, 50,
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64, 164,
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64, 162,
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64, 50,
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66, 50,
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66, 50,
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64, 50,
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66, 50,
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64, 52,
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64, 50,
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66, 160,
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66, 50,
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64, 162,
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66, 50,
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64, 162,
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64, 50,
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66, 3938,
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906, 214,
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66, 3014,
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906, 214,
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64, 0};
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int AppleRewindSignal[] = {
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// ON, OFF (in 10's of microseconds)
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908, 442,
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66, 48,
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66, 162,
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66, 160,
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66, 160,
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66, 50,
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66, 160,
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66, 160,
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66, 160,
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68, 158,
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68, 160,
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66, 160,
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66, 50,
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66, 48,
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66, 50,
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66, 48,
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66, 162,
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66, 160,
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66, 48,
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68, 48,
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66, 160,
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66, 50,
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66, 50,
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66, 48,
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66, 50,
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66, 48,
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68, 48,
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66, 160,
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66, 50,
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66, 160,
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66, 50,
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66, 160,
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66, 48,
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68, 3936,
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906, 214,
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66, 0};
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168
ircommander.pde
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168
ircommander.pde
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@ -0,0 +1,168 @@
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/* Raw IR commander
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This sketch/program uses the Arduno and a PNA4602 to
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decode IR received. It then attempts to match it to a previously
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recorded IR signal
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Code is public domain, check out www.ladyada.net and adafruit.com
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for more tutorials!
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*/
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// We need to use the 'raw' pin reading methods
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// because timing is very important here and the digitalRead()
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// procedure is slower!
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//uint8_t IRpin = 2;
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// Digital pin #2 is the same as Pin D2 see
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// http://arduino.cc/en/Hacking/PinMapping168 for the 'raw' pin mapping
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#define IRpin_PIN PIND
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#define IRpin 2
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// the maximum pulse we'll listen for - 65 milliseconds is a long time
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#define MAXPULSE 65000
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// what our timing resolution should be, larger is better
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// as its more 'precise' - but too large and you wont get
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// accurate timing
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#define RESOLUTION 20
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// What percent we will allow in variation to match the same code
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#define FUZZINESS 10
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// we will store up to 100 pulse pairs (this is -a lot-)
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uint16_t pulses[100][2]; // pair is high and low pulse
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uint8_t currentpulse = 0; // index for pulses we're storing
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#include "ircodes.h"
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void setup(void) {
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Serial.begin(9600);
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Serial.println("Ready to decode IR!");
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}
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void loop(void) {
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int numberpulses;
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numberpulses = listenForIR();
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Serial.print("Heard ");
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Serial.print(numberpulses);
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Serial.println("-pulse long IR signal");
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if (IRcompare(numberpulses, ApplePlaySignal)) {
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Serial.println("PLAY");
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}
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if (IRcompare(numberpulses, AppleRewindSignal)) {
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Serial.println("REWIND");
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}
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if (IRcompare(numberpulses, AppleForwardSignal)) {
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Serial.println("FORWARD");
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}
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}
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boolean IRcompare(int numpulses, int Signal[]) {
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for (int i=0; i< numpulses-1; i++) {
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int oncode = pulses[i][1] * RESOLUTION / 10;
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int offcode = pulses[i+1][0] * RESOLUTION / 10;
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/*
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Serial.print(oncode); // the ON signal we heard
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Serial.print(" - ");
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Serial.print(Signal[i*2 + 0]); // the ON signal we want
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*/
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// check to make sure the error is less than FUZZINESS percent
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if ( abs(oncode - Signal[i*2 + 0]) <= (Signal[i*2 + 0] * FUZZINESS / 100)) {
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//Serial.print(" (ok)");
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} else {
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//Serial.print(" (x)");
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// we didn't match perfectly, return a false match
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return false;
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}
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/*
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Serial.print(" \t"); // tab
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Serial.print(offcode); // the OFF signal we heard
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Serial.print(" - ");
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Serial.print(Signal[i*2 + 1]); // the OFF signal we want
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*/
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if ( abs(offcode - Signal[i*2 + 1]) <= (Signal[i*2 + 1] * FUZZINESS / 100)) {
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//Serial.print(" (ok)");
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} else {
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//Serial.print(" (x)");
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// we didn't match perfectly, return a false match
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return false;
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}
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//Serial.println();
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}
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// Everything matched!
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return true;
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}
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int listenForIR(void) {
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currentpulse = 0;
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while (1) {
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uint16_t highpulse, lowpulse; // temporary storage timing
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highpulse = lowpulse = 0; // start out with no pulse length
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// while (digitalRead(IRpin)) { // this is too slow!
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while (IRpin_PIN & (1 << IRpin)) {
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// pin is still HIGH
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// count off another few microseconds
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highpulse++;
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delayMicroseconds(RESOLUTION);
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// If the pulse is too long, we 'timed out' - either nothing
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// was received or the code is finished, so print what
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// we've grabbed so far, and then reset
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if ((highpulse >= MAXPULSE) && (currentpulse != 0)) {
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return currentpulse;
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}
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}
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// we didn't time out so lets stash the reading
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pulses[currentpulse][0] = highpulse;
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// same as above
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while (! (IRpin_PIN & _BV(IRpin))) {
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// pin is still LOW
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lowpulse++;
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delayMicroseconds(RESOLUTION);
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if ((lowpulse >= MAXPULSE) && (currentpulse != 0)) {
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return currentpulse;
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}
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}
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pulses[currentpulse][1] = lowpulse;
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// we read one high-low pulse successfully, continue!
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currentpulse++;
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}
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}
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void printpulses(void) {
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Serial.println("\n\r\n\rReceived: \n\rOFF \tON");
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for (uint8_t i = 0; i < currentpulse; i++) {
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Serial.print(pulses[i][0] * RESOLUTION, DEC);
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Serial.print(" usec, ");
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Serial.print(pulses[i][1] * RESOLUTION, DEC);
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Serial.println(" usec");
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}
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// print it in a 'array' format
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Serial.println("int IRsignal[] = {");
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Serial.println("// ON, OFF (in 10's of microseconds)");
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for (uint8_t i = 0; i < currentpulse-1; i++) {
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Serial.print("\t"); // tab
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Serial.print(pulses[i][1] * RESOLUTION / 10, DEC);
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Serial.print(", ");
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Serial.print(pulses[i+1][0] * RESOLUTION / 10, DEC);
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Serial.println(",");
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}
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Serial.print("\t"); // tab
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Serial.print(pulses[currentpulse-1][1] * RESOLUTION / 10, DEC);
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Serial.print(", 0};");
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}
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