Merge branch 'beta' of https://github.com/z3t0/Arduino-IRremote into beta

Credits: https://github.com/LarsWH
Excerpt from PR:
```
Hi,

I added support for 'RC5 extended' in order to make this project:
https://www.instructables.com/id/Remote-Control-for-Lava-mMotion-Swing-Mounting-Bra/

The modification is working nicely in this single application. It has
not been tested elsewhere.

(I am new to Git and this is my first pull request ever. So please
excuse me if I have messed something up)

Kind regards,
Lars
```

Merged #522

README.md

@@ -8,7 +8,7 @@ This library enables you to send and receive using infra-red signals on an Ardui
 
 Tutorials and more information will be made available on [the official homepage](http://z3t0.github.io/Arduino-IRremote/).
 
-## Version - 2.4.0b
+## Version - 2.5.0b
 
 ## Installation
 1. Navigate to the [Releases](https://github.com/z3t0/Arduino-IRremote/releases) page.
@@ -43,7 +43,7 @@ We are open to suggestions for adding support to new boards, however we highly r
 | [ATtiny84](https://github.com/SpenceKonde/ATTinyCore)                    | **6**               | **1**             |
 | [ATtiny85](https://github.com/SpenceKonde/ATTinyCore)                    | **1**               | **TINY0**         |
 | [ATmega8](https://github.com/MCUdude/MiniCore)                           | **9**               | **1**             |
-| Atmega32u4                                                               | 5, 9, **13**        | 1, 3, **4**       |
+| Atmega32u4                                                               | 5, **9**, 13        | 1, 3, **4**       |
 | [ATmega48, ATmega88, ATmega168, ATmega328](https://github.com/MCUdude/MiniCore) | **3**, 9     | 1, **2**          |
 | [ATmega1284](https://github.com/MCUdude/MightyCore)                      | 13, 14, 6           | 1, **2**, 3       |
 | [ATmega164, ATmega324, ATmega644](https://github.com/MCUdude/MightyCore) | 13, **14**          | 1, **2**          |
@@ -68,6 +68,20 @@ The table above lists the currently supported timers and corresponding send pins
 ## Usage
 - TODO (Check examples for now)
 
+## API documentation
+This project documents the library API using [Doxygen](http://www.doxygen.org).
+It is planned to make generated and up-to-date API documentation available online.
+
+To generate the API documentation,
+Doxygen, as well as [Graphviz](http://www.graphviz.org/) should be installed.
+(Note that on Windows, it may be necessary to add the Graphviz binary directory
+(something like `C:\Program Files\Graphviz2.38\bin`)
+to the `PATH` variable manually.)
+With Doxygen and Graphviz installed, issue the command
+`doxygen` from the command line in the main project directory, which will
+generate the API documentation in HTML format.
+The just generated `api-doc/index.html` can now be opened in a browser.
+
 ## Contributing
 If you want to contribute to this project:
 - Report bugs and errors

changelog.md

@@ -1,3 +1,6 @@
+## 2.5.0
+- Added Philips Extended RC-5 protocol support [PR #522] (https://github.com/z3t0/Arduino-IRremote/pull/522)
+
 ## 2.4.0 - 2017/08/10
  - Cleanup of hardware dependencies. Merge in SAM support [PR #437](https://github.com/z3t0/Arduino-IRremote/pull/437)
 

examples/IRrecvDumpV2/IRrecvDumpV2.ino

@@ -56,7 +56,6 @@ 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

@@ -1,16 +0,0 @@
-
-#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
-  }
-}

examples/IRtest/IRtest.ino

@@ -10,7 +10,6 @@
  */
 
 #include <IRremote.h>
-#include <IRremoteInt.h>
 
 // Dumps out the decode_results structure.
 // Call this after IRrecv::decode()

examples/LegoPowerFunctionsSendDemo/LegoPowerFunctionsSendDemo.ino

@@ -4,7 +4,6 @@
  */
 
 #include <IRremote.h>
-#include <IRremoteInt.h>
 
 IRsend irsend;
 

library.properties

@@ -3,7 +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
+paragraph=Find more information at https://github.com/z3t0/Arduino-IRremote
 category=Communication
 url=https://github.com/z3t0/Arduino-IRremote
 architectures=*

src/IRremote.cpp

@@ -20,8 +20,7 @@
 
 // Defining IR_GLOBAL here allows us to declare the instantiation of global variables
 #define IR_GLOBAL
-#	include "IRremote.h"
+#include "IRremote.h"
-#	include "IRremoteInt.h"
 #undef IR_GLOBAL
 
 #ifdef HAS_AVR_INTERRUPT_H
@@ -52,11 +51,12 @@ int  MATCH (int measured,  int desired)
  	DBG_PRINT(TICKS_HIGH(desired), DEC);
 
   bool passed = ((measured >= TICKS_LOW(desired)) && (measured <= TICKS_HIGH(desired)));
-  if (passed)
+  if (passed) {
     DBG_PRINTLN(F("?; passed"));
-  else
+  } else {
     DBG_PRINTLN(F("?; FAILED"));
- 	return passed;
+  }
+  return passed;
 }
 
 //+========================================================
@@ -78,11 +78,12 @@ int  MATCH_MARK (int measured_ticks,  int desired_us)
 
   bool passed = ((measured_ticks >= TICKS_LOW (desired_us + MARK_EXCESS))
                 && (measured_ticks <= TICKS_HIGH(desired_us + MARK_EXCESS)));
-  if (passed)
+  if (passed) {
     DBG_PRINTLN(F("?; passed"));
-  else
+  } else {
     DBG_PRINTLN(F("?; FAILED"));
- 	return passed;
+  }
+  return passed;
 }
 
 //+========================================================
@@ -104,11 +105,12 @@ int  MATCH_SPACE (int measured_ticks,  int desired_us)
 
   bool passed = ((measured_ticks >= TICKS_LOW (desired_us - MARK_EXCESS))
                 && (measured_ticks <= TICKS_HIGH(desired_us - MARK_EXCESS)));
-  if (passed)
+  if (passed) {
     DBG_PRINTLN(F("?; passed"));
-  else
+  } else {
     DBG_PRINTLN(F("?; FAILED"));
- 	return passed;
+  }
+  return passed;
 }
 
 //+=============================================================================

src/IRremote.h

@@ -1,3 +1,7 @@
+/**
+ * @file IRremote.h
+ * @brief Public API to the library.
+ */
 
 //******************************************************************************
 // IRremote
@@ -21,7 +25,7 @@
 //------------------------------------------------------------------------------
 // The ISR header contains several useful macros the user may wish to use
 //
-#include "IRremoteInt.h"
+#include "private/IRremoteInt.h"
 
 //------------------------------------------------------------------------------
 // Supported IR protocols
@@ -79,9 +83,6 @@
 #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
@@ -97,10 +98,10 @@
 #define PRONTO_FALLBACK    true
 #define PRONTO_NOFALLBACK  false
 
-//------------------------------------------------------------------------------
+/**
-// An enumerated list of all supported formats
+ * An enum consisting of all supported formats.
-// You do NOT need to remove entries from this list when disabling protocols!
+ * You do NOT need to remove entries from this list when disabling protocols!
-//
+ */
 typedef
 	enum {
 		UNKNOWN      = -1,
@@ -122,14 +123,13 @@ typedef
 		DENON,
 		PRONTO,
 		LEGO_PF,
-		RECS80,
 	}
 decode_type_t;
 
-//------------------------------------------------------------------------------
+/**
-// Set DEBUG to 1 for lots of lovely debug output
+ * Set DEBUG to 1 for lots of lovely debug output.
-//
+ */
-#define DEBUG 0
+#define DEBUG  0
 
 //------------------------------------------------------------------------------
 // Debug directives
@@ -138,7 +138,13 @@ decode_type_t;
 #	define DBG_PRINT(...)    Serial.print(__VA_ARGS__)
 #	define DBG_PRINTLN(...)  Serial.println(__VA_ARGS__)
 #else
+/**
+ * If DEBUG, print the arguments, otherwise do nothing.
+ */
 #	define DBG_PRINT(...)
+/**
+ * If DEBUG, print the arguments as a line, otherwise do nothing.
+ */
 #	define DBG_PRINTLN(...)
 #endif
 
@@ -149,39 +155,71 @@ int  MATCH       (int measured, int desired) ;
 int  MATCH_MARK  (int measured_ticks, int desired_us) ;
 int  MATCH_SPACE (int measured_ticks, int desired_us) ;
 
-//------------------------------------------------------------------------------
+/**
-// Results returned from the decoder
+ * Results returned from the decoder
-//
+ */
 class decode_results
 {
 	public:
-		decode_type_t          decode_type;  // UNKNOWN, NEC, SONY, RC5, ...
+		decode_type_t          decode_type;  ///< UNKNOWN, NEC, SONY, RC5, ...
-		unsigned int           address;      // Used by Panasonic & Sharp [16-bits]
+		unsigned int           address;      ///< Used by Panasonic & Sharp [16-bits]
-		unsigned long          value;        // Decoded value [max 32-bits]
+		unsigned long          value;        ///< Decoded value [max 32-bits]
-		int                    bits;         // Number of bits in decoded value
+		int                    bits;         ///< Number of bits in decoded value
-		volatile unsigned int  *rawbuf;      // Raw intervals in 50uS ticks
+		volatile unsigned int  *rawbuf;      ///< Raw intervals in 50uS ticks
-		int                    rawlen;       // Number of records in rawbuf
+		int                    rawlen;       ///< Number of records in rawbuf
-		int                    overflow;     // true iff IR raw code too long
+		int                    overflow;     ///< true iff IR raw code too long
 };
 
-//------------------------------------------------------------------------------
+/**
-// Decoded value for NEC when a repeat code is received
+ * Decoded value for NEC when a repeat code is received
-//
+ */
 #define REPEAT 0xFFFFFFFF
 
-//------------------------------------------------------------------------------
+/**
-// Main class for receiving IR
+ * Main class for receiving IR
-//
+ */
 class IRrecv
 {
 	public:
+                /**
+                 * Instantiate the IRrecv class. Multiple instantiation is not supported.
+                 * @param recvpin Arduino pin to use. No sanity check is made.
+                 */
 		IRrecv (int recvpin) ;
+                /**
+                 * Instantiate the IRrecv class. Multiple instantiation is not supported.
+                 * @param recvpin Arduino pin to use, where a demodulating IR receiver is connected.
+                 * @param blinkpin pin to blink when receiving IR. Not supported by all hardware. No sanity check is made.
+                 */
 		IRrecv (int recvpin, int blinkpin);
 
+                /**
+                 * TODO: Why is this public???
+                 * @param blinkflag
+                 */
 		void  blink13    (int blinkflag) ;
+
+                /**
+                 * Attempt to decode the recently receive IR signal
+                 * @param results decode_results instance returning the decode, if any.
+                 * @return success of operation. TODO: convert to bool
+                 */
 		int   decode     (decode_results *results) ;
+
+                /**
+                 * Enable IR reception.
+                 */
 		void  enableIRIn ( ) ;
+
+                /**
+                 * Returns status of reception
+                 * @return true if no reception is on-going.
+                 */
 		bool  isIdle     ( ) ;
+
+                /**
+                 * Called to re-enable IR reception.
+                 */
 		void  resume     ( ) ;
 
 	private:
@@ -190,10 +228,17 @@ class IRrecv
 
 		//......................................................................
 #		if (DECODE_RC5 || DECODE_RC6)
-			// This helper function is shared by RC5 and RC6
+			/**
+                         *  This helper function is shared by RC5 and RC6
+                         */
 			int  getRClevel (decode_results *results,  int *offset,  int *used,  int t1) ;
 #		endif
 #		if DECODE_RC5
+                        /**
+                         * Try to decode the recently received IR signal as an RC5 signal-
+                         * @param results decode_results instance returning the decode, if any.
+                         * @return Success of the operation.
+                         */
 			bool  decodeRC5        (decode_results *results) ;
 #		endif
 #		if DECODE_RC6
@@ -255,15 +300,11 @@ class IRrecv
 #		if DECODE_LEGO_PF
 			bool  decodeLegoPowerFunctions (decode_results *results) ;
 #		endif
-
-#		if DECODE_RECS80
-		    bool decodeRECS80(decode_results *results);
-#		endif
 } ;
 
-//------------------------------------------------------------------------------
+/**
-// Main class for sending IR
+ * Main class for sending IR
-//
+ */
 class IRsend
 {
 	public:
@@ -289,6 +330,7 @@ class IRsend
 		//......................................................................
 #		if SEND_RC5
 			void  sendRC5        (unsigned long data,  int nbits) ;
+			void  sendRC5ext     (unsigned long addr, unsigned long cmd, boolean toggle);
 #		endif
 #		if SEND_RC6
 			void  sendRC6        (unsigned long data,  int nbits) ;
@@ -358,10 +400,6 @@ 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/esp32.cpp

@@ -3,7 +3,6 @@
 // This file contains functions specific to the ESP32.
 
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 // "Idiot check"
 #ifdef USE_DEFAULT_ENABLE_IR_IN

src/irRecv.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //+=============================================================================
 // Decodes the received IR message
@@ -85,11 +84,6 @@ 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/irSend.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 #ifdef SENDING_SUPPORTED
 //+=============================================================================

src/ir_Aiwa.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                         AAA   IIIII  W   W   AAA

src/ir_Denon.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 // Reverse Engineered by looking at RAW dumps generated by IRremote
 

src/ir_Dish.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                       DDDD   IIIII   SSSS  H   H

src/ir_JVC.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                             JJJJJ  V   V   CCCC

src/ir_LG.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                               L       GGGG

src/ir_Lego_PF.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 #include "ir_Lego_PF_BitStreamEncoder.h"
 
 //==============================================================================

src/ir_Mitsubishi.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //    MMMMM  IIIII TTTTT   SSSS  U   U  BBBB   IIIII   SSSS  H   H  IIIII

src/ir_NEC.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                           N   N  EEEEE   CCCC

src/ir_Panasonic.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //       PPPP    AAA   N   N   AAA    SSSS   OOO   N   N  IIIII   CCCC

src/ir_RC5_RC6.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //+=============================================================================
 // Gets one undecoded level at a time from the raw buffer.
@@ -78,6 +77,73 @@ void  IRsend::sendRC5 (unsigned long data,  int nbits)
 
 	space(0);  // Always end with the LED off
 }
+
+void  IRsend::sendRC5ext (unsigned long addr, unsigned long cmd, boolean toggle)
+{
+	// Set IR carrier frequency
+	enableIROut(36);
+	
+	unsigned long addressBits = 5;
+	unsigned long commandBits = 7;
+	unsigned long nbits = addressBits + commandBits;
+	
+	// Start
+	mark(RC5_T1);
+	
+	// Bit #6 of the command part, but inverted!
+	unsigned long cmdBit6 = (1UL << (commandBits-1)) & cmd;
+	if (cmdBit6) {
+		// Inverted (1 -> 0 = mark-to-space)
+		mark(RC5_T1);
+		space(RC5_T1);
+	} else {
+		space(RC5_T1);
+		mark(RC5_T1);
+	}
+	commandBits--;
+
+	// Toggle bit
+	static int toggleBit = 1;
+	if (toggle) {
+		if (toggleBit == 0) {
+			toggleBit = 1;
+		} else {
+			toggleBit = 0;
+		}
+	}
+	if (toggleBit) {
+		space(RC5_T1);
+		mark(RC5_T1);
+	} else {
+		mark(RC5_T1);
+		space(RC5_T1);
+	}
+
+	// Address
+	for (unsigned long  mask = 1UL << (addressBits - 1);  mask;  mask >>= 1) {
+		if (addr & mask) {
+			space(RC5_T1); // 1 is space, then mark
+			mark(RC5_T1);
+		} else {
+			mark(RC5_T1);
+			space(RC5_T1);
+		}
+	}
+	
+	// Command
+	for (unsigned long  mask = 1UL << (commandBits - 1);  mask;  mask >>= 1) {
+		if (cmd & mask) {
+			space(RC5_T1); // 1 is space, then mark
+			mark(RC5_T1);
+		} else {
+			mark(RC5_T1);
+			space(RC5_T1);
+		}
+	}
+
+	space(0);  // Always end with the LED off
+}
+
 #endif
 
 //+=============================================================================

src/ir_RECS80.cpp

@@ -1,92 +0,0 @@
-#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

src/ir_Samsung.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //              SSSS   AAA    MMM    SSSS  U   U  N   N   GGGG

src/ir_Sanyo.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                      SSSS   AAA   N   N  Y   Y   OOO

src/ir_Sharp.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                       SSSS  H   H   AAA   RRRR   PPPP

src/ir_Sony.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //                           SSSS   OOO   N   N  Y   Y

src/ir_Template.cpp

@@ -92,7 +92,6 @@ Regards,
 */
 
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //

src/ir_Whynter.cpp

@@ -1,5 +1,4 @@
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 //==============================================================================
 //               W   W  H   H  Y   Y N   N TTTTT EEEEE  RRRRR

src/private/IRremoteInt.h

@@ -34,19 +34,22 @@
 //------------------------------------------------------------------------------
 // Information for the Interrupt Service Routine
 //
-#define RAWBUF  101  // Maximum length of raw duration buffer
+#define RAWBUF  101  ///< Maximum length of raw duration buffer. Must be odd.
 
+/**
+  * This struct is used to communicate with the ISR (interrupt service routine).
+  */
 typedef
 	struct {
 		// The fields are ordered to reduce memory over caused by struct-padding
-		uint8_t       rcvstate;        // State Machine state
+		uint8_t       rcvstate;        ///< State Machine state
-		uint8_t       recvpin;         // Pin connected to IR data from detector
+		uint8_t       recvpin;         ///< Pin connected to IR data from detector
 		uint8_t       blinkpin;
-		uint8_t       blinkflag;       // true -> enable blinking of pin on IR processing
+		uint8_t       blinkflag;       ///< true -> enable blinking of pin on IR processing
-		uint8_t       rawlen;          // counter of entries in rawbuf
+		uint8_t       rawlen;          ///< counter of entries in rawbuf
-		unsigned int  timer;           // State timer, counts 50uS ticks.
+		unsigned int  timer;           ///< State timer, counts 50uS ticks.
-		unsigned int  rawbuf[RAWBUF];  // raw data
+		unsigned int  rawbuf[RAWBUF];  ///< raw data
-		uint8_t       overflow;        // Raw buffer overflow occurred
+		uint8_t       overflow;        ///< Raw buffer overflow occurred
 	}
 irparams_t;
 
@@ -57,9 +60,11 @@ irparams_t;
 #define STATE_STOP      5
 #define STATE_OVERFLOW  6
 
-// Allow all parts of the code access to the ISR data
+/**
-// NB. The data can be changed by the ISR at any time, even mid-function
+ * Allow all parts of the code access to the ISR data
-// Therefore we declare it as "volatile" to stop the compiler/CPU caching it
+ * NB. The data can be changed by the ISR at any time, even mid-function
+ * Therefore we declare it as "volatile" to stop the compiler/CPU caching it
+ */
 EXTERN  volatile irparams_t  irparams;
 
 //------------------------------------------------------------------------------
@@ -79,8 +84,12 @@ EXTERN  volatile irparams_t  irparams;
 // Pulse parameters in uSec
 //
 
-// Due to sensor lag, when received, Marks  tend to be 100us too long and
+/**
-//                                   Spaces tend to be 100us too short
+ * When received, marks  tend to be too long and
+ * spaces tend to be too short.
+ * To compensate for this, MARK_EXCESS is subtracted from all marks,
+ * and added to all spaces.
+ */
 #define MARK_EXCESS    100
 
 // Upper and Lower percentage tolerances in measurements
@@ -89,7 +98,7 @@ EXTERN  volatile irparams_t  irparams;
 #define UTOL            (1.0 + (TOLERANCE/100.))
 
 // Minimum gap between IR transmissions
-#define _GAP            8000
+#define _GAP            5000
 #define GAP_TICKS       (_GAP/USECPERTICK)
 
 #define TICKS_LOW(us)   ((int)(((us)*LTOL/USECPERTICK)))

src/private/boarddefs.h

@@ -85,7 +85,7 @@
 #       undef HAS_AVR_INTERRUPT_H
 
         // Sending not implemented
-#       undef SENDING_SUPPORTED#
+#       undef SENDING_SUPPORTED
 
         // Supply own enbleIRIn
 #       undef USE_DEFAULT_ENABLE_IR_IN
@@ -131,8 +131,8 @@
 // Teensy 2.0
 #elif defined(__AVR_ATmega32U4__)
 	//#define IR_USE_TIMER1   // tx = pin 14
-	//#define IR_USE_TIMER3   // tx = pin 9
+	#define IR_USE_TIMER3   // tx = pin 9
-	#define IR_USE_TIMER4_HS  // tx = pin 10
+	//#define IR_USE_TIMER4_HS  // tx = pin 10
 
 // Teensy 3.0 / Teensy 3.1
 #elif defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__)

src/sam.cpp

@@ -1,7 +1,6 @@
 // Support routines for SAM processor boards
 
 #include "IRremote.h"
-#include "IRremoteInt.h"
 
 #if defined(ARDUINO_ARCH_SAM) || defined(ARDUINO_ARCH_SAMD)