diff --git a/DaikinHeatpumpARC417IR.cpp b/DaikinHeatpumpARC417IR.cpp
new file mode 100644
index 0000000..9b95a1f
--- /dev/null
+++ b/DaikinHeatpumpARC417IR.cpp
@@ -0,0 +1,134 @@
+#include <DaikinHeatpumpARC417IR.h>
+
+DaikinHeatpumpARC417IR::DaikinHeatpumpARC417IR() : HeatpumpIR()
+{
+  static const char PROGMEM model[] PROGMEM = "daikin_arc417";
+  static const char PROGMEM info[]  PROGMEM = "{\"mdl\":\"daikin_arc417\",\"dn\":\"Daikin ARC417\",\"mT\":18,\"xT\":30,\"fs\":6,\"maint\":[10,11,12,13,14,15,16,17]}}}";
+
+  _model = model;
+  _info = info;
+}
+
+
+// Daikin numeric values to command bytes
+void DaikinHeatpumpARC417IR::send(IRSender& IR, uint8_t powerModeCmd, uint8_t operatingModeCmd, uint8_t fanSpeedCmd, uint8_t temperatureCmd, uint8_t swingVCmd, uint8_t swingHCmd)
+{
+  // Sensible defaults for the heat pump mode
+
+  uint8_t operatingMode = DAIKIN_AIRCON2_MODE_OFF | DAIKIN_AIRCON2_MODE_AUTO;
+  uint8_t fanSpeed      = DAIKIN_AIRCON2_FAN_AUTO;
+  uint8_t temperature   = 0x10; // 18 deg
+
+  if ((operatingModeCmd == MODE_HEAT && temperatureCmd >= 14 && temperatureCmd <= 28) ||
+      (operatingModeCmd == MODE_COOL && temperatureCmd >= 18 && temperatureCmd <= 32) ||
+      (temperatureCmd >= 18 && temperatureCmd <= 28))
+  {
+    temperature = (temperatureCmd << 1) - 20;
+  }
+
+  switch (powerModeCmd)
+  {
+    case POWER_ON:
+      operatingMode |= DAIKIN_AIRCON2_MODE_ON;
+      break;
+  }
+
+  switch (operatingModeCmd)
+  {
+    case MODE_AUTO:
+      operatingMode |= DAIKIN_AIRCON2_MODE_AUTO;
+      break;
+    case MODE_HEAT:
+      operatingMode |= DAIKIN_AIRCON2_MODE_HEAT;
+      break;
+    case MODE_COOL:
+      operatingMode |= DAIKIN_AIRCON2_MODE_COOL;
+      break;
+    case MODE_DRY:
+      operatingMode |= DAIKIN_AIRCON2_MODE_DRY;
+      temperature = 0x80;
+      break;
+    case MODE_FAN:
+      operatingMode |= DAIKIN_AIRCON2_MODE_FAN;
+      temperatureCmd = 0xC0;
+      break;
+  }
+
+  switch (fanSpeedCmd)
+  {
+    case FAN_AUTO:
+      fanSpeed = DAIKIN_AIRCON2_FAN_AUTO;
+      break;
+    case FAN_1:
+      fanSpeed = DAIKIN_AIRCON2_FAN1;
+      break;
+    case FAN_2:
+      fanSpeed = DAIKIN_AIRCON2_FAN2;
+      break;
+    case FAN_3:
+      fanSpeed = DAIKIN_AIRCON2_FAN3;
+      break;
+    case FAN_4:
+      fanSpeed = DAIKIN_AIRCON2_FAN4;
+      break;
+    case FAN_5:
+      fanSpeed = DAIKIN_AIRCON2_FAN5;
+      break;
+  }
+
+  sendDaikin(IR, operatingMode, fanSpeed, temperature, swingVCmd, swingHCmd);
+}
+
+
+// Send the Daikin code
+void DaikinHeatpumpARC417IR::sendDaikin(IRSender& IR, uint8_t operatingMode, uint8_t fanSpeed, uint8_t temperature, uint8_t swingV, uint8_t swingH)
+{
+  (void)swingV;
+  (void)swingH;
+
+  uint8_t daikinTemplate[20] = {
+    0x11, 0xDA, 0x27, 0xF0, 0x0D, 0x00, 0x0F, // First header
+   //  0     1     2     3     4     5     6
+    0x11, 0xDA, 0x27, 0x00, 0xD3, 0x11, 0x00, 0x00, 0x00, 0x1E, 0x0A, 0x08, 0x26 };
+   //  7     8     9    10    11    12    13    14    15    16    17    18    19
+
+  daikinTemplate[12] = operatingMode;
+  daikinTemplate[16] = temperature;
+  daikinTemplate[17] = fanSpeed;
+  
+  // Checksum calculation
+  // * Checksum at byte 6 is calculated the same way
+  uint8_t checksum = 0x00;
+
+  for (int i=7; i<19; i++) {
+    checksum += daikinTemplate[i];
+  }
+
+  daikinTemplate[19] = checksum;
+
+  // 38 kHz PWM frequency
+  IR.setFrequency(38);
+
+  // Header
+  IR.mark(DAIKIN_AIRCON2_HDR_MARK);
+  IR.space(DAIKIN_AIRCON2_HDR_SPACE);
+
+  // First header
+  for (int i=0; i<7; i++) {
+    IR.sendIRbyte(daikinTemplate[i], DAIKIN_AIRCON2_BIT_MARK, DAIKIN_AIRCON2_ZERO_SPACE, DAIKIN_AIRCON2_ONE_SPACE);
+  }
+
+  // Pause + new header
+  IR.mark(DAIKIN_AIRCON2_BIT_MARK);
+  IR.space(DAIKIN_AIRCON2_MSG_SPACE);
+  IR.mark(DAIKIN_AIRCON2_HDR_MARK);
+  IR.space(DAIKIN_AIRCON2_HDR_SPACE);
+
+  // 
+  for (int i=7; i<20; i++) {
+    IR.sendIRbyte(daikinTemplate[i], DAIKIN_AIRCON2_BIT_MARK, DAIKIN_AIRCON2_ZERO_SPACE, DAIKIN_AIRCON2_ONE_SPACE);
+  }
+
+  IR.mark(DAIKIN_AIRCON2_BIT_MARK);
+  IR.space(0);
+}
\ No newline at end of file
diff --git a/DaikinHeatpumpARC417IR.h b/DaikinHeatpumpARC417IR.h
new file mode 100644
index 0000000..cd9fa4b
--- /dev/null
+++ b/DaikinHeatpumpARC417IR.h
@@ -0,0 +1,44 @@
+/*
+    Daikin heatpump control (Daikin remote control P/N ARC417A3)
+*/
+#ifndef DaikinHeatpumpARC417IR_h
+#define DaikinHeatpumpARC417IR_h
+
+#include <HeatpumpIR.h>
+
+
+// Daikin timing constants
+#define DAIKIN_AIRCON2_HDR_MARK   5050
+#define DAIKIN_AIRCON2_HDR_SPACE  2100
+#define DAIKIN_AIRCON2_BIT_MARK   391
+#define DAIKIN_AIRCON2_ONE_SPACE  1725
+#define DAIKIN_AIRCON2_ZERO_SPACE 667
+#define DAIKIN_AIRCON2_MSG_SPACE  30000
+
+// Daikin codes
+#define DAIKIN_AIRCON2_MODE_AUTO  0x10 // Operating mode
+#define DAIKIN_AIRCON2_MODE_HEAT  0x40
+#define DAIKIN_AIRCON2_MODE_COOL  0x30
+#define DAIKIN_AIRCON2_MODE_DRY   0x20
+#define DAIKIN_AIRCON2_MODE_FAN   0x60
+#define DAIKIN_AIRCON2_MODE_OFF   0x00 // Power OFF
+#define DAIKIN_AIRCON2_MODE_ON    0x01
+#define DAIKIN_AIRCON2_FAN_AUTO   0x0A // Fan speed
+#define DAIKIN_AIRCON2_FAN1       0x03
+#define DAIKIN_AIRCON2_FAN2       0x04
+#define DAIKIN_AIRCON2_FAN3       0x05
+#define DAIKIN_AIRCON2_FAN4       0x06
+#define DAIKIN_AIRCON2_FAN5       0x07
+
+
+class DaikinHeatpumpARC417IR : public HeatpumpIR
+{
+  public:
+    DaikinHeatpumpARC417IR();
+    void send(IRSender& IR, uint8_t powerModeCmd, uint8_t operatingModeCmd, uint8_t fanSpeedCmd, uint8_t temperatureCmd, uint8_t swingVCmd, uint8_t swingHCmd);
+
+  private:
+    void sendDaikin(IRSender& IR, uint8_t operatingMode, uint8_t fanSpeed, uint8_t temperature, uint8_t swingV, uint8_t swingH);
+};
+
+#endif
\ No newline at end of file