HeatpumpIR library + sensors example to send IR commands to heatpumps

2015-09-29 20:21:42 +03:00
parent 1b8c87704c
commit c9ffef8da3
42 changed files with 4004 additions and 0 deletions
@@ -0,0 +1,206 @@
+#include <Arduino.h>
+#include <IRSender.h>
+
+// Heavily based on Ken Shirriff's IRRemote library:
+// https://github.com/shirriff/Arduino-IRremote
+//
+// For PWM on Arduino, see http://playground.arduino.cc/Main/TimerPWMCheatsheet
+
+IRSender::IRSender(byte pin)
+{
+  _pin = pin;
+}
+
+// Set the PWM frequency. The selected pin determines which timer to use
+void IRSender::setFrequency(int frequency)
+{
+  uint8_t pwmval8 = F_CPU / 2000 / (frequency);
+  uint16_t pwmval16 = F_CPU / 2000 / (frequency);
+
+  pinMode(_pin, OUTPUT);
+  digitalWrite(_pin, LOW); // When not sending PWM, we want it low
+
+  switch (_pin)
+  {
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+// Arduino Mega
+    case 9:
+      // Fall-through to 10, timer2 controls both 9 and 10
+    case 10:
+      TCCR2A = _BV(WGM20);
+      TCCR2B = _BV(WGM22) | _BV(CS20);
+      OCR2A = pwmval8;
+      OCR2B = pwmval8 / 3;
+      break;
+    case 11:
+      // Fall-through to 12, timer1 controls both 11 and 12
+    case 12:
+      TCCR1A = _BV(WGM11);
+      TCCR1B = _BV(WGM13) | _BV(CS10);
+      ICR1 = pwmval16;
+      OCR1A = pwmval16 / 3;
+      OCR1B = pwmval16 / 3;
+      break;
+    case 44:
+      // Fall-through to 46, timer 5 controls pins 44, 45 and 46 on Arduino Mega
+    case 45:
+    case 46:
+      TCCR5A = _BV(WGM51) | _BV(WGM50);
+      TCCR5B = _BV(WGM53) | _BV(CS50);
+      ICR5 = pwmval16;
+      OCR5A = pwmval16 / 3;
+#else
+// Arduino Duemilanove etc
+    case 3:
+      // Fall-through to 11, timer2 controls both 3 and 11
+    case 11:
+      TCCR2A = _BV(WGM20);
+      TCCR2B = _BV(WGM22) | _BV(CS20);
+      OCR2A = pwmval8;
+      OCR2B = pwmval8 / 3;
+      break;
+    case 9:
+      // Fall-through to 10, timer1 controls both 9 and 10
+    case 10:
+      TCCR1A = _BV(WGM11);
+      TCCR1B = _BV(WGM13) | _BV(CS10);
+      ICR1 = pwmval16;
+      OCR1A = pwmval16 / 3;
+      OCR1B = pwmval16 / 3;
+      break;
+#endif
+  }
+}
+
+// Send a byte (8 bits) over IR
+void IRSender::sendIRByte(byte sendByte, int bitMarkLength, int zeroSpaceLength, int oneSpaceLength)
+{
+  for (int i=0; i<8 ; i++)
+  {
+    if (sendByte & 0x01)
+    {
+      mark(bitMarkLength);
+      space(oneSpaceLength);
+    }
+    else
+    {
+      mark(bitMarkLength);
+      space(zeroSpaceLength);
+    }
+
+    sendByte >>= 1;
+  }
+}
+
+// The Carrier IR protocol has the bits in a reverse order (compared to the other heatpumps)
+// See http://www.nrtm.org/index.php/2013/07/25/reverse-bits-in-a-byte/
+byte IRSender::bitReverse(byte x)
+{
+  //          01010101  |         10101010
+  x = ((x >> 1) & 0x55) | ((x << 1) & 0xaa);
+  //          00110011  |         11001100
+  x = ((x >> 2) & 0x33) | ((x << 2) & 0xcc);
+  //          00001111  |         11110000
+  x = ((x >> 4) & 0x0f) | ((x << 4) & 0xf0);
+  return x;
+}
+
+// Send an IR 'mark' symbol, i.e. transmitter ON
+void IRSender::mark(int markLength)
+{
+  switch (_pin)
+  {
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+// Arduino Mega
+    case 9:
+      (TCCR2A |= _BV(COM2B1)); // Enable pin 3 PWM output
+      break;
+    case 11:
+      (TCCR1A |= _BV(COM1A1)); // Enable pin 9 PWM output
+      break;
+    case 12:
+      (TCCR1A |= _BV(COM1B1)); // Enable pin 10 PWM output
+      break;
+    case 10:
+      (TCCR2A |= _BV(COM2A1)); // Enable pin 11 PWM output
+      break;
+    case 44:
+      (TCCR5A |= _BV(COM5C1)); // Enable pin 44 PWM output on Arduino Mega
+      break;
+    case 45:
+      (TCCR5A |= _BV(COM5B1)); // Enable pin 45 PWM output on Arduino Mega
+      break;
+    case 46:
+      (TCCR5A |= _BV(COM5A1)); // Enable pin 46 PWM output on Arduino Mega
+      break;
+#else
+// Arduino Duemilanove etc
+    case 3:
+      (TCCR2A |= _BV(COM2B1)); // Enable pin 3 PWM output
+      break;
+    case 9:
+      (TCCR1A |= _BV(COM1A1)); // Enable pin 9 PWM output
+      break;
+    case 10:
+      (TCCR1A |= _BV(COM1B1)); // Enable pin 10 PWM output
+      break;
+    case 11:
+      (TCCR2A |= _BV(COM2A1)); // Enable pin 11 PWM output
+      break;
+#endif
+    }
+
+  delayMicroseconds(markLength);
+}
+
+// Send an IR 'space' symbol, i.e. transmitter OFF
+void IRSender::space(int spaceLength)
+{
+  switch (_pin)
+  {
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+// Arduino Mega
+    case 9:
+      (TCCR2A &= ~(_BV(COM2B1))); // Disable pin 3 PWM output
+      break;
+    case 11:
+      (TCCR1A &= ~(_BV(COM1A1))); // Disable pin 9 PWM output
+      break;
+    case 12:
+      (TCCR1A &= ~(_BV(COM1B1))); // Disable pin 10 PWM output
+      break;
+    case 10:
+      (TCCR2A &= ~(_BV(COM2A1))); // Disable pin 11 PWM output
+      break;
+    case 44:
+      (TCCR5A &= ~(_BV(COM5C1))); // Disable pin 44 PWM output on Arduino Mega
+    case 45:
+      (TCCR5A &= ~(_BV(COM5B1))); // Disable pin 45 PWM output on Arduino Mega
+    case 46:
+      (TCCR5A &= ~(_BV(COM5A1))); // Disable pin 46 PWM output on Arduino Mega
+#else
+// Arduino Duemilanove etc
+    case 3:
+      (TCCR2A &= ~(_BV(COM2B1))); // Disable pin 3 PWM output
+      break;
+    case 9:
+      (TCCR1A &= ~(_BV(COM1A1))); // Disable pin 9 PWM output
+      break;
+    case 10:
+      (TCCR1A &= ~(_BV(COM1B1))); // Disable pin 10 PWM output
+      break;
+    case 11:
+      (TCCR2A &= ~(_BV(COM2A1))); // Disable pin 11 PWM output
+      break;
+#endif
+}
+
+  // Mitsubishi heatpump uses > 16383us spaces, and delayMicroseconds only works up to 2^14 - 1 us
+  // Use the less accurate milliseconds delay for longer delays
+
+  if (spaceLength < 16383) {
+    delayMicroseconds(spaceLength);
+  } else {
+    delay(spaceLength/1000);
+  }
+}