From ced24b71638678fd7f16cfdb282e4ac35a430815 Mon Sep 17 00:00:00 2001
From: Nateonas <40019341+Nateonas@users.noreply.github.com>
Date: Thu, 29 Oct 2020 22:06:34 +0100
Subject: [PATCH] Added support for ZH/LT-01 Remote controlled heatpumps

---
 ZHLT01HeatpumpIR.cpp | 198 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 198 insertions(+)
 create mode 100644 ZHLT01HeatpumpIR.cpp

diff --git a/ZHLT01HeatpumpIR.cpp b/ZHLT01HeatpumpIR.cpp
new file mode 100644
index 0000000..3030183
--- /dev/null
+++ b/ZHLT01HeatpumpIR.cpp
@@ -0,0 +1,198 @@
+#include <ZHLT01HeatpumpIR.h>
+
+ZHLT01HeatpumpIR::ZHLT01HeatpumpIR() : HeatpumpIR()
+{
+  static const char model[] PROGMEM = "ZHLT01";
+  static const char info[]  PROGMEM = "{\"mdl\":\"ZHLT01\",\"dn\":\"ZHLT01\",\"mT\":18,\"xT\":32,\"fs\":3,\"maint\":[10]}}";
+
+  _model = model;
+  _info = info;
+}
+
+void ZHLT01HeatpumpIR::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 powerMode     = AC1_POWER_ON;
+  uint8_t operatingMode = AC1_MODE_AUTO;
+  uint8_t fanSpeed      = AC1_FAN_AUTO;
+  uint8_t temperature   = 25;
+  uint8_t swingV        = AC1_VDIR_FIXED;
+  uint8_t swingH        = AC1_HDIR_FIXED;
+
+  if (powerModeCmd == 0)
+  {
+    powerMode = AC1_POWER_OFF;
+  }
+
+  switch (operatingModeCmd)
+  {
+    case MODE_COOL:
+      operatingMode  = AC1_MODE_COOL;
+      break;
+    case MODE_FAN:
+      operatingMode  = AC1_MODE_FAN;
+      break;
+    case MODE_DRY:
+      operatingMode  = AC1_MODE_DRY;
+      temperatureCmd = 25;
+      break;
+    case MODE_HEAT:
+      operatingMode  = AC1_MODE_HEAT;
+      break;
+    case MODE_MAINT:
+      operatingMode  = AC1_MODE_DRY;       // MODE_MAINT not supported
+      temperatureCmd = 30;                 // Simlulated as DRY at 30°C
+      break;
+	default:
+      operatingMode  = AC1_MODE_AUTO;
+	  temperatureCmd = 25;                 // "Auto" = 25°C
+  }
+
+  switch (fanSpeedCmd)
+  {
+    case FAN_AUTO:
+      fanSpeed = AC1_FAN_AUTO;
+      break;
+    case FAN_SILENT:
+      fanSpeed = AC1_FAN_SILENT;
+      break;
+    case FAN_1:
+      fanSpeed = AC1_FAN1;
+      break;
+    case FAN_2:
+      fanSpeed = AC1_FAN2;
+      break;
+    case FAN_3:
+      fanSpeed = AC1_FAN3;
+      break;
+    case FAN_4:
+      if ( operatingMode == AC1_MODE_COOL || operatingMode == AC1_MODE_HEAT )
+	  { fanSpeed = AC1_FAN_TURBO; }
+      else
+      { fanSpeed = AC1_FAN3; }
+      break;
+    case FAN_5:
+      if ( operatingMode == AC1_MODE_COOL || operatingMode == AC1_MODE_HEAT )
+	  { fanSpeed = AC1_FAN_TURBO; }
+      else
+      { fanSpeed = AC1_FAN3; }
+      break;
+  }
+
+  switch (swingVCmd)
+  {
+    case VDIR_AUTO:
+      swingV = AC1_VDIR_WIND;
+      break;
+    case VDIR_SWING:
+      swingV = AC1_VDIR_SWING;
+      break;
+	default:
+      swingV = AC1_VDIR_FIXED;
+  }
+
+  switch (swingHCmd)
+  {
+    case HDIR_SWING:
+      swingH = AC1_HDIR_SWING;
+      break;
+	default:
+      swingH = AC1_HDIR_FIXED;  
+  }
+
+// temperature must be between 16 and 32 degrees
+
+  temperature = temperatureCmd;
+  
+  if ( temperatureCmd < 16)
+  {
+    temperature = 16;
+  }
+
+  if (temperatureCmd > 32)
+  {
+    temperature = 32;
+  }
+
+
+  sendZHLT01(IR, powerMode, operatingMode, fanSpeed, temperature, swingV, swingH);
+}
+
+void ZHLT01HeatpumpIR::sendZHLT01(IRSender& IR, uint8_t powerMode, 
+                                                uint8_t operatingMode, 
+											    uint8_t fanSpeed, 
+											    uint8_t temperature,
+											    uint8_t swingV,
+											    uint8_t swingH)
+{
+  uint8_t ZHLT01Template[] = { 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0x2A, 0xD5 };
+  //    Bytenumbers:             0     1     2     3     4     5     6     7     8     9    10    11
+
+/********************************************************************************
+ * Byte[03]: Button TURBO used for fanspeed 4 and 5
+ * TURBO ON: Bxxxx1xxx (bit3)
+ * TURBO ON: Bxxxx0xxx
+ *******************************************************************************/
+  if (fanSpeed == AC1_FAN_TURBO)
+  {
+     ZHLT01Template[3] = AC1_FAN_TURBO;
+     ZHLT01Template[2] = ~ ZHLT01Template[3];
+	 fanSpeed          = AC1_FAN_AUTO;
+  }
+
+ /********************************************************************************
+ * Byte[07]: POWER, FAN, SLEEP, HORIZONTAL, VERTICAL
+ * POWER ON:         B0xxxxx1x
+ * POWER OFF:        B0xxxxx0x
+ * VERTICAL SWING:   B0xxx01xx
+ * VERTICAL WIND:    B0xxx00xx
+ * VERTICAL FIXED:   B0xxx10xx
+ * HORIZONTAL SWING: B0xx0xxxx
+ * HORIZONTAL OFF:   B0xx1xxxx
+ * FAN AUTO:         B000xxxx0
+ * FAN SILENT:       B000xxxx1
+ * FAN3:             B001xxxx0
+ * FAN2:             B010xxxx0
+ * FAN1:             B011xxxx0
+ *******************************************************************************/
+  ZHLT01Template[7] = fanSpeed | powerMode | swingV | swingH;
+  ZHLT01Template[6] = ~ ZHLT01Template[7];
+  
+/********************************************************************************
+ * Byte[09]: Mode, Temperature
+ * MODE AUTO: B000xxxxx
+ * MODE COOL: B001xxxxx
+ * MODE VENT: B011xxxxx
+ * MODE DRY:  B010xxxxx
+ * MODE HEAT: B100xxxxx
+ * Temperature is determined by bit0-4:
+ * 0x00 = 16C
+ * 0x10 = 32C
+ *******************************************************************************/
+
+  ZHLT01Template[9] = operatingMode | (temperature - 16);
+  ZHLT01Template[8] = ~ ZHLT01Template[9];
+
+// 38 kHz PWM frequency
+  IR.setFrequency(38);
+
+// Header
+  IR.mark(AC1_HDR_MARK);
+  IR.space(AC1_HDR_SPACE);
+
+// Data
+  for (unsigned int i=0; i<sizeof(ZHLT01Template); i++) {
+    IR.sendIRbyte(ZHLT01Template[i], AC1_BIT_MARK, AC1_ZERO_SPACE, AC1_ONE_SPACE);
+  }
+
+// End mark
+  IR.mark(AC1_BIT_MARK);
+  IR.space(0);
+}