Added support for LG wall hvac

sonoff/my_user_config.h

@@ -36,7 +36,8 @@
  * Users are advised to use the user_config_override.h file for most changes.
 \*********************************************************************************************/
 
-//#define USE_CONFIG_OVERRIDE                      // Uncomment to use user_config_override.h file. See README.md
+#define USE_CONFIG_OVERRIDE                      // Uncomment to use user_config_override.h file. See README.md
+#warning Override settings are used :-)
 
 /*********************************************************************************************\
  * SECTION 1
@@ -366,7 +367,7 @@
 
 // -- Low level interface devices -----------------
 #define USE_IR_REMOTE                            // Send IR remote commands using library IRremoteESP8266 and ArduinoJson (+4k code, 0k3 mem, 48 iram)
-//  #define USE_IR_HVAC                            // Support for HVAC system using IR (+2k code)
+#define USE_IR_HVAC                              // Support for HVAC system using IR (+2k code)
   #define USE_IR_RECEIVE                         // Support for IR receiver (+5k5 code, 264 iram)
 
 #define USE_WS2812                               // WS2812 Led string using library NeoPixelBus (+5k code, +1k mem, 232 iram) - Disable by //

sonoff/xdrv_05_irremote.ino

@@ -44,6 +44,9 @@ const char kIrRemoteProtocols[] PROGMEM =
 #define HVAC_TOSHIBA_RPT_SPACE 7048 // Above original iremote limit
 #define HVAC_TOSHIBA_DATALEN 9
 
+// HVAC LG
+#define HVAC_LG_DATALEN 7
+
 IRMitsubishiAC *mitsubir = NULL;
 
 const char kFanSpeedOptions[] = "A12345S";
@@ -137,6 +140,10 @@ void IrReceiveCheck(void)
  * IR Heating, Ventilation and Air Conditioning using IRMitsubishiAC library
 \*********************************************************************************************/
 
+/******************* 
+      TOSCHIBA
+********************/
+
 boolean IrHvacToshiba(const char *HVAC_Mode, const char *HVAC_FanMode, boolean HVAC_Power, int HVAC_Temp)
 {
   uint16_t rawdata[2 + 2 * 8 * HVAC_TOSHIBA_DATALEN + 2];
@@ -226,6 +233,11 @@ boolean IrHvacToshiba(const char *HVAC_Mode, const char *HVAC_FanMode, boolean H
   return false;
 }
 
+
+/******************* 
+     MITSUBISHI
+********************/
+
 boolean IrHvacMitsubishi(const char *HVAC_Mode, const char *HVAC_FanMode, boolean HVAC_Power, int HVAC_Temp)
 {
   char *p;
@@ -269,6 +281,124 @@ boolean IrHvacMitsubishi(const char *HVAC_Mode, const char *HVAC_FanMode, boolea
 
   return false;
 }
+
+
+/******************* 
+        LG
+********************/
+
+boolean IrHvacLG(const char *HVAC_Mode, const char *HVAC_FanMode, boolean HVAC_Power, int HVAC_Temp)
+{
+  uint32_t LG_Code;
+  byte data[HVAC_LG_DATALEN];
+  static boolean hvacOn = false;
+  char *p;
+  uint8_t mode;
+  byte Temp;
+
+  // Constant data
+  data[0] = 0x08;
+  data[1] = 0x08;
+  data[2] = 0x00;
+
+  if (!HVAC_Power) {
+    data[2] = (byte)0x0C; // Turn OFF HVAC, code 0x88C0051
+    data[3] = (byte)0x00; 
+    data[4] = (byte)0x00; 
+    data[5] = (byte)0x05; 
+    data[6] = (byte)0x01; 
+    hvacOn = false;
+  }
+
+  else {
+    
+    // Set code for HVAC Mode - data[3]
+    if (HVAC_Mode == NULL) {
+      p = (char *)kHvacModeOptions; // default HVAC_HOT
+    }
+    else {
+      p = strchr(kHvacModeOptions, toupper(HVAC_Mode[0]));  
+    }
+    if (!p) {
+      return true;
+    }
+    mode = (p - kHvacModeOptions) ^ 0x03; // HOT = 0x03, DRY = 0x02, COOL = 0x01, AUTO = 0x00
+    switch (mode) {
+      case 0: // AUTO
+        data[3] = 11;
+        break;
+      case 1: // COOL
+        data[3] = 8;
+        break;
+      case 2: // DRY
+        data[3] = 9;
+        break;
+      case 3: // HOT
+        data[3] = 12;
+        break; 
+    }
+    if (!hvacOn) {
+      data[3] = data[3] & 7; // reset bit3
+      hvacOn = true;
+    }
+  
+    snprintf_P(log_data, sizeof(log_data), PSTR("IRHVAC: HvacMode %s, ModeVal %d, Code %d"), p, mode, data[3]);
+    AddLog(LOG_LEVEL_DEBUG);
+    
+    // Set code for HVAC temperature - data[4]
+    if (HVAC_Temp > 30) {
+      Temp = 30;
+    }
+    else if (HVAC_Temp < 18) {
+      Temp = 18;
+    }
+    else {
+      Temp = HVAC_Temp;
+    }
+    data[4] = (byte)(Temp - 15);
+
+    // Set code for HVAC fan mode - data[5]
+    if (HVAC_FanMode == NULL) {
+      p = (char *)kFanSpeedOptions; // default FAN_SPEED_AUTO
+    }
+    else {
+      p = strchr(kFanSpeedOptions, toupper(HVAC_FanMode[0]));
+    }
+    if (!p) {
+      return true;
+    }
+    mode = p - kFanSpeedOptions;
+    if ((mode == 0) || (mode > 3)) {
+      data[5] = 5; // Auto = 0x05
+    }
+    else {
+      data[5] = (mode * 2) - 2; // Low = 0x00, Mid = 0x02, High = 0x04
+    }
+    
+    snprintf_P(log_data, sizeof(log_data), PSTR("IRHVAC: FanMode %s, ModeVal %d, Code %d"), p, mode, data[5]);
+    AddLog(LOG_LEVEL_DEBUG);
+
+    // Set CRC code - data[6]
+    data[6] = (data[3] + data[4] + data[5]) & 0x0f; // CRC
+
+  }    
+  // Build LG IR code
+  LG_Code = data[0] << 4;
+  for (int i = 1; i < 6; i++) {
+    LG_Code = (LG_Code + data[i]) << 4;
+  }
+  LG_Code = LG_Code + data[6];
+
+  snprintf_P(log_data, sizeof(log_data), PSTR("IRHVAC: LG_Code %d"), LG_Code);
+  AddLog(LOG_LEVEL_DEBUG);
+
+  // Send LG IR Code 
+  noInterrupts();
+  irsend->sendLG(LG_Code, 28);
+  interrupts();
+  
+  return false;
+}
 #endif // USE_IR_HVAC
 
 /*********************************************************************************************\
@@ -381,6 +511,9 @@ boolean IrSendCommand(void)
         else if (!strcasecmp_P(HVAC_Vendor, PSTR("MITSUBISHI"))) {
           error = IrHvacMitsubishi(HVAC_Mode, HVAC_FanMode, HVAC_Power, HVAC_Temp);
         }
+        else if (!strcasecmp_P(HVAC_Vendor, PSTR("LG"))) {
+          error = IrHvacLG(HVAC_Mode, HVAC_FanMode, HVAC_Power, HVAC_Temp);
+        }
         else {
           error = true;
         }