diff --git a/examples/LGACSendDemo/LGACSendDemo.ino b/examples/LGACSendDemo/LGACSendDemo.ino
index 8dfb804..da5db37 100644
--- a/examples/LGACSendDemo/LGACSendDemo.ino
+++ b/examples/LGACSendDemo/LGACSendDemo.ino
@@ -12,7 +12,7 @@ const int AC_TYPE  = 0;
 // 1 : WALL
 //
 
-const int AC_HEAT = 0;
+int AC_HEAT = 0;
 // 0 : cooling
 // 1 : heating
 
@@ -63,8 +63,10 @@ void ac_activate(int temperature, int air_flow)
   int AC_MSBITS3 = 0;
   int AC_MSBITS4 ;
   if ( AC_HEAT == 1 ) {
+    // heating
     AC_MSBITS4 = 4;
   } else {
+    // cooling
     AC_MSBITS4 = 0;
   }
   int AC_MSBITS5 = temperature - 15;
@@ -165,7 +167,7 @@ void loop()
   if ( r != o_r) {
 
     /*
-    # a : mode or temp    b : air_flow, temp, swing, clean
+    # a : mode or temp    b : air_flow, temp, swing, clean, cooling/heating
     # 18 ~ 30 : temp      0 ~ 2 : flow // on
     # 0 : off             0
     # 1 : on              0
diff --git a/examples/LGACSendDemo/LGACSendDemo.md b/examples/LGACSendDemo/LGACSendDemo.md
index 230701a..7f859d1 100644
--- a/examples/LGACSendDemo/LGACSendDemo.md
+++ b/examples/LGACSendDemo/LGACSendDemo.md
@@ -32,39 +32,44 @@
 | on / 27 / high | C |1000|1000|0000|0000|1100|0100|0000     
 | on / 28 / high | C |1000|1000|0000|0000|1101|0100|0001
 |----------------|---|----|----|----|----|----|----|----    
-| 1 up           | C |1000|1000|0000|1000|1101|0100|1001     
+| 1 up           | C |1000|1000|0000|1000|1101|0100|1001 
+|----------------|---|----|----|----|----|----|----|----    
 | Cool power     | C |1000|1000|0001|0000|0000|1100|1101     
 | energy saving  | C |1000|1000|0001|0000|0000|0100|0101     
 | power          | C |1000|1000|0001|0000|0000|1000|1001            
 | flow/up/down   | C |1000|1000|0001|0011|0001|0100|1001     
 | up/down off    | C |1000|1000|0001|0011|0001|0101|1010     
 | flow/left/right| C |1000|1000|0001|0011|0001|0110|1011     
-| left/right off | C |1000|1000|0001|0011|0001|0111|1100     
-| Air clean      | C |1000|1000|1100|0000|0000|0000|1100     
+| left/right off | C |1000|1000|0001|0011|0001|0111|1100 
+|----------------|---|----|----|----|----|----|----|----    
+| Air clean      | C |1000|1000|1100|0000|0000|0000|1100
+|----------------|---|----|----|----|----|----|----|----    
 | off            | C |1000|1000|1100|0000|0000|0101|0001 
 
 
 
 * remote / with heating 
-* converted from raw code at https://github.com/chaeplin/RaspAC/blob/master/lircd.conf 
+* converted using raw code at https://github.com/chaeplin/RaspAC/blob/master/lircd.conf 
 
 |       status   |(0)| (1)| (2)| (3)| (4)| (5)| (6)| (7)
 |----------------|---|----|----|----|----|----|----|----
 | on             | C |1000|1000|0000|0000|1011|0010|1101
-| of             | C |1000|1000|1100|0000|0000|0101|0001
 |----------------|---|----|----|----|----|----|----|----
-| 64             | C |1000|1000|0000|0000|0011|0100|0111
-| 66             | C |1000|1000|0000|0000|0100|0100|1000
-| 68             | C |1000|1000|0000|0000|0101|0100|1001
-| 70             | C |1000|1000|0000|0000|0110|0100|1010
-| 72             | C |1000|1000|0000|0000|0111|0100|1011
-| 74             | C |1000|1000|0000|0000|1000|0100|1100
-| 76             | C |1000|1000|0000|0000|1010|0100|1110
-| 78             | C |1000|1000|0000|0000|1011|0100|1111
-| 80             | C |1000|1000|0000|0000|1100|0100|0000
-| 82             | C |1000|1000|0000|0000|1101|0100|0001
-| 84             | C |1000|1000|0000|0000|1110|0100|0010
-| 86             | C |1000|1000|0000|0000|1111|0100|0011
+| off            | C |1000|1000|1100|0000|0000|0101|0001
+|----------------|---|----|----|----|----|----|----|----
+| 64  / 18       | C |1000|1000|0000|0000|0011|0100|0111
+| 66  / 19       | C |1000|1000|0000|0000|0100|0100|1000
+| 68  / 20       | C |1000|1000|0000|0000|0101|0100|1001
+| 70  / 21       | C |1000|1000|0000|0000|0110|0100|1010
+| 72  / 22       | C |1000|1000|0000|0000|0111|0100|1011
+| 74  / 23       | C |1000|1000|0000|0000|1000|0100|1100
+| 76  / 25       | C |1000|1000|0000|0000|1010|0100|1110
+| 78  / 26       | C |1000|1000|0000|0000|1011|0100|1111
+| 80  / 27       | C |1000|1000|0000|0000|1100|0100|0000
+| 82  / 28       | C |1000|1000|0000|0000|1101|0100|0001
+| 84  / 29       | C |1000|1000|0000|0000|1110|0100|0010
+| 86  / 20       | C |1000|1000|0000|0000|1111|0100|0011
+|----------------|---|----|----|----|----|----|----|----
 | heat64         | H |1000|1000|0000|0100|0011|0100|1011
 | heat66         | H |1000|1000|0000|0100|0100|0100|1100
 | heat68         | H |1000|1000|0000|0100|0101|0100|1101