Added example test file for recs80

I have tested it using two arduinos (one for sending and the other for
receiving) and have achieved a 90% (estimate) success rate.

examples/IRrecvDumpV2/IRrecvDumpV2.ino

@@ -56,6 +56,7 @@ void  encoding (decode_results *results)
     case AIWA_RC_T501: Serial.print("AIWA_RC_T501");  break ;
     case PANASONIC:    Serial.print("PANASONIC");     break ;
     case DENON:        Serial.print("Denon");         break ;
+    case RECS80:       Serial.print("RECS80");        break ; 
   }
 }
 

examples/IRsendRECS80Test/IRsendRECS80Test.ino

@@ -0,0 +1,16 @@
+
+#include <IRremote.h>
+
+IRsend irsend;
+
+void setup()
+{
+  delay(2000);
+}
+
+void loop() {
+  for (int i = 0; i < 512; i++) {
+    irsend.sendRECS80(i);
+    delay(5000); //5 second delay between each signal burst
+  }
+}

library.properties

@@ -3,6 +3,7 @@ version=2.4.0
 author=shirriff, z3t0
 maintainer=z3t0
 sentence=Send and receive infrared signals with multiple protocols
+paragraph=See more at https://github.com/z3t0/Arduino-IRremote
 category=Communication
 url=https://github.com/z3t0/Arduino-IRremote
 architectures=*

src/IRremote.h

@@ -79,6 +79,9 @@
 #define DECODE_LEGO_PF       0 // NOT WRITTEN
 #define SEND_LEGO_PF         1
 
+#define DECODE_RECS80        1 // NOT WRITTEN
+#define SEND_RECS80          1 // Still being tested
+
 //------------------------------------------------------------------------------
 // When sending a Pronto code we request to send either the "once" code
 //                                                   or the "repeat" code
@@ -119,6 +122,7 @@ typedef
 		DENON,
 		PRONTO,
 		LEGO_PF,
+		RECS80,
 	}
 decode_type_t;
 
@@ -251,6 +255,10 @@ class IRrecv
 #		if DECODE_LEGO_PF
 			bool  decodeLegoPowerFunctions (decode_results *results) ;
 #		endif
+
+#		if DECODE_RECS80
+		    bool decodeRECS80(decode_results *results);
+#		endif
 } ;
 
 //------------------------------------------------------------------------------
@@ -350,6 +358,10 @@ class IRsend
 #		if SEND_LEGO_PF
 			void  sendLegoPowerFunctions (uint16_t data, bool repeat = true) ;
 #		endif
+		//......................................................................
+#		if SEND_RECS80
+			void  sendRECS80 (uint16_t data) ;
+#		endif
 
 #ifdef USE_SOFT_CARRIER
 	private:

src/IRremoteInt.h

@@ -89,7 +89,7 @@ EXTERN  volatile irparams_t  irparams;
 #define UTOL            (1.0 + (TOLERANCE/100.))
 
 // Minimum gap between IR transmissions
-#define _GAP            5000
+#define _GAP            8000
 #define GAP_TICKS       (_GAP/USECPERTICK)
 
 #define TICKS_LOW(us)   ((int)(((us)*LTOL/USECPERTICK)))

src/irRecv.cpp

@@ -85,6 +85,11 @@ int  IRrecv::decode (decode_results *results)
 	if (decodeLegoPowerFunctions(results))  return true ;
 #endif
 
+#if DECODE_RECS80
+	DBG_PRINTLN("Attempting RECS80 decode");
+	if (decodeRECS80(results)) return true;
+#endif
+
 	// decodeHash returns a hash on any input.
 	// Thus, it needs to be last in the list.
 	// If you add any decodes, add them before this.

src/ir_RECS80.cpp

@@ -0,0 +1,92 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+// RECS80
+// Documentation : http://www.sbprojects.com/knowledge/ir/recs80.php
+
+#define RECS80_MARK 158
+#define RECS80_ONE_SPACE 7432
+#define RECS80_ZERO_SPACE 4902
+#define RECS80_BITS 12
+#define RECS80_BITS_DATA 9
+#define RECS80_ADDRESS_BITS 3
+#define RECS80_COMMAND_BITS 6
+
+#if SEND_RECS80
+
+void IRsend::sendRECS80 (uint16_t data) {
+  // Set IR carrier frequency
+  enableIROut(38);
+
+  // Header
+  mark(RECS80_MARK);
+  space(RECS80_ONE_SPACE);
+
+  // Data: address and command
+  for (uint16_t mask = 1 << (RECS80_COMMAND_BITS + RECS80_ADDRESS_BITS - 1); mask; mask >>=1) {
+    mark(RECS80_MARK);
+
+    if (data & mask) {
+      space(RECS80_ONE_SPACE);
+    } else {
+      space(RECS80_ZERO_SPACE);
+    }
+
+  }
+
+  mark(RECS80_MARK);
+  space(0);
+}
+
+
+#endif // SEND_RECS80
+
+#if DECODE_RECS80
+
+bool IRrecv::decodeRECS80 (decode_results *results)
+{
+  long data = 0;
+  long offset = 1;
+
+  // Check that there is enough data
+  if (irparams.rawlen < (2 * RECS80_BITS) - 2) {
+
+    DBG_PRINTLN("Not long enough");
+    DBG_PRINTLN(irparams.rawlen);
+
+    return false;
+  }
+
+  // Initial mark and space
+  if (!MATCH_MARK(results->rawbuf[offset++], RECS80_MARK)) return false;
+  if (!MATCH_SPACE(results->rawbuf[offset++], RECS80_ONE_SPACE)) return false;
+
+  // Data: Address and command stored as one variable
+  for (int i = 0; i < (RECS80_ADDRESS_BITS + RECS80_COMMAND_BITS); i++) {
+    if (!MATCH_MARK(results->rawbuf[offset++], RECS80_MARK)) return false;
+
+    // One
+    if (MATCH_MARK(results->rawbuf[offset], RECS80_ONE_SPACE))
+      data = (data << 1) | 1; 
+
+    // Zero
+    else if (MATCH_MARK(results->rawbuf[offset], RECS80_ZERO_SPACE))
+      data = (data << 1) | 0;
+
+    else return false;
+    offset++;
+  }
+
+  if (!MATCH_MARK(results->rawbuf[offset], RECS80_MARK)) return false;
+
+  // Success
+  results->decode_type = RECS80;
+  results->bits = RECS80_BITS_DATA;
+  results->value = data;
+
+  return true;
+  
+
+}
+
+#endif