diff --git a/SupportedProtocols.md b/SupportedProtocols.md
index c242980f..5267fe1a 100644
--- a/SupportedProtocols.md
+++ b/SupportedProtocols.md
@@ -50,6 +50,7 @@
 | [Mitsubishi](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_Mitsubishi.cpp) | **[Mitsubishi](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_Mitsubishi.h)** | HC3000 Projector<BR>KM14A 0179213 remote<BR>MS-GK24VA A/C<BR>TV |  | Yes |
 | [Mitsubishi](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_Mitsubishi.cpp) | **[Mitsubishi Electric](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_Mitsubishi.h)** | 001CP T7WE10714 remote<BR>KPOA remote<BR>MSH-A24WV / MUH-A24WV A/C<BR>PEAD-RP71JAA Ducted A/C |  | Yes |
 | [MitsubishiHeavy](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_MitsubishiHeavy.cpp) | **[Mitsubishi Heavy Industries](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_MitsubishiHeavy.h)** | RKX502A001C remote<BR>RLA502A700B remote<BR>SRKxxZJ-S A/C<BR>SRKxxZM-S A/C<BR>SRKxxZMXA-S A/C |  | Yes |
+| [Multibrackets](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_Multibrackets.cpp) | **Multibrackets** | Motorized Swing mount large - 4500 |  | - |
 | [NEC](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_NEC.cpp) | **[Aloka](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_NEC.h)** | SleepyLights LED Lamp |  | - |
 | [NEC](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_NEC.cpp) | **[Toshiba](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_NEC.h)** | 42TL838 LCD TV |  | - |
 | [NEC](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_NEC.cpp) | **[Yamaha](https://github.com/crankyoldgit/IRremoteESP8266/blob/master/src/ir_NEC.h)** | RAV561 remote<BR>RXV585B A/V Receiver |  | - |
@@ -134,6 +135,7 @@
 - MITSUBISHI_AC
 - MITSUBISHI_HEAVY_152
 - MITSUBISHI_HEAVY_88
+- MULTIBRACKETS
 - MWM
 - NEC
 - NEC_LIKE
diff --git a/src/IRrecv.cpp b/src/IRrecv.cpp
index 63526ec2..7d82c3a9 100644
--- a/src/IRrecv.cpp
+++ b/src/IRrecv.cpp
@@ -797,6 +797,10 @@ bool IRrecv::decode(decode_results *results, irparams_t *save,
     DPRINTLN("Attempting Doshisha decode");
     if (decodeDoshisha(results, offset)) return true;
 #endif  // DECODE_DOSHISHA
+#if DECODE_MULTIBRACKETS
+    DPRINTLN("Attempting Multibrackets decode");
+    if (decodeMultibrackets(results, offset)) return true;
+#endif  // DECODE_MULTIBRACKETS
   // Typically new protocols are added above this line.
   }
 #if DECODE_HASH
diff --git a/src/IRrecv.h b/src/IRrecv.h
index 0168225e..a5c52c15 100644
--- a/src/IRrecv.h
+++ b/src/IRrecv.h
@@ -599,10 +599,16 @@ class IRrecv {
                      const bool strict = true);
 #endif  // DECODE_DELONGHI_AC
 #if DECODE_DOSHISHA
-bool decodeDoshisha(decode_results *results, uint16_t offset = kStartOffset,
-                    const uint16_t nbits = kDoshishaBits,
-                    const bool strict = true);
+  bool decodeDoshisha(decode_results *results, uint16_t offset = kStartOffset,
+                      const uint16_t nbits = kDoshishaBits,
+                      const bool strict = true);
 #endif  // DECODE_DOSHISHA
+#if DECODE_MULTIBRACKETS
+  bool decodeMultibrackets(decode_results *results,
+                           uint16_t offset = kStartOffset,
+                           const uint16_t nbits = kMultibracketsBits,
+                           const bool strict = true);
+#endif  // DECODE_MULTIBRACKETS
 };
 
 #endif  // IRRECV_H_
diff --git a/src/IRremoteESP8266.h b/src/IRremoteESP8266.h
index dcef3b78..d663490b 100644
--- a/src/IRremoteESP8266.h
+++ b/src/IRremoteESP8266.h
@@ -614,6 +614,12 @@
 #define SEND_DOSHISHA         _IR_ENABLE_DEFAULT_
 #endif  // SEND_DOSHISHA
 
+#ifndef DECODE_MULTIBRACKETS
+#define DECODE_MULTIBRACKETS  _IR_ENABLE_DEFAULT_
+#endif  // DECODE_MULTIBRACKETS
+#ifndef SEND_MULTIBRACKETS
+#define SEND_MULTIBRACKETS    _IR_ENABLE_DEFAULT_
+#endif  // SEND_MULTIBRACKETS
 #if (DECODE_ARGO || DECODE_DAIKIN || DECODE_FUJITSU_AC || DECODE_GREE || \
      DECODE_KELVINATOR || DECODE_MITSUBISHI_AC || DECODE_TOSHIBA_AC || \
      DECODE_TROTEC || DECODE_HAIER_AC || DECODE_HITACHI_AC || \
@@ -743,8 +749,9 @@ enum decode_type_t {
   AIRWELL,
   DELONGHI_AC,  // 80
   DOSHISHA,
+  MULTIBRACKETS,
   // Add new entries before this one, and update it to point to the last entry.
-  kLastDecodeType = DOSHISHA,
+  kLastDecodeType = MULTIBRACKETS,
 };
 
 // Message lengths & required repeat values
@@ -871,6 +878,8 @@ const uint16_t kMitsubishiHeavy88MinRepeat = kNoRepeat;
 const uint16_t kMitsubishiHeavy152StateLength = 19;
 const uint16_t kMitsubishiHeavy152Bits = kMitsubishiHeavy152StateLength * 8;
 const uint16_t kMitsubishiHeavy152MinRepeat = kNoRepeat;
+const uint16_t kMultibracketsBits = 8;
+const uint16_t kMultibracketsDefaultRepeat = kSingleRepeat;
 const uint16_t kNikaiBits = 24;
 const uint16_t kNECBits = 32;
 const uint16_t kNeoclimaStateLength = 12;
diff --git a/src/IRsend.cpp b/src/IRsend.cpp
index c8a7d7c0..35efb523 100644
--- a/src/IRsend.cpp
+++ b/src/IRsend.cpp
@@ -607,6 +607,7 @@ uint16_t IRsend::minRepeats(const decode_type_t protocol) {
     case MITSUBISHI:
     case MITSUBISHI2:
     case MITSUBISHI_AC:
+    case MULTIBRACKETS:
     case SHERWOOD:
     case SYMPHONY:
     case TOSHIBA_AC:
@@ -634,6 +635,8 @@ uint16_t IRsend::minRepeats(const decode_type_t protocol) {
 //   int16_t:  The number of bits.
 uint16_t IRsend::defaultBits(const decode_type_t protocol) {
   switch (protocol) {
+    case MULTIBRACKETS:
+      return 8;
     case SYMPHONY:
       return 11;
     case RC5:
@@ -896,6 +899,11 @@ bool IRsend::send(const decode_type_t type, const uint64_t data,
       sendMitsubishi2(data, nbits, min_repeat);
       break;
 #endif
+#if SEND_MULTIBRACKETS
+    case MULTIBRACKETS:
+      sendMultibrackets(data, nbits, min_repeat);
+      break;
+#endif
 #if SEND_NIKAI
     case NIKAI:
       sendNikai(data, nbits, min_repeat);
diff --git a/src/IRsend.h b/src/IRsend.h
index 09a17de6..b4d710bf 100644
--- a/src/IRsend.h
+++ b/src/IRsend.h
@@ -582,6 +582,11 @@ class IRsend {
                     const uint16_t repeat = kNoRepeat);
   uint64_t encodeDoshisha(const uint8_t command, const uint8_t channel = 0);
 #endif  // SEND_DOSHISHA
+#if SEND_MULTIBRACKETS
+  void sendMultibrackets(const uint64_t data,
+                         const uint16_t nbits = kMultibracketsBits,
+                         const uint16_t repeat = kMultibracketsDefaultRepeat);
+#endif
 
  protected:
 #ifdef UNIT_TEST
diff --git a/src/IRtext.cpp b/src/IRtext.cpp
index 05806d6d..d3c3973e 100644
--- a/src/IRtext.cpp
+++ b/src/IRtext.cpp
@@ -249,5 +249,6 @@ const PROGMEM char *kAllProtocolNamesStr =
     D_STR_AIRWELL "\x0"
     D_STR_DELONGHI_AC "\x0"
     D_STR_DOSHISHA "\x0"
+    D_STR_MULTIBRACKETS "\x0"
     // New protocol strings should be added just above this line.
     "\x0";  // This string requires double null termination.
diff --git a/src/ir_Multibrackets.cpp b/src/ir_Multibrackets.cpp
new file mode 100644
index 00000000..0a0dfbe7
--- /dev/null
+++ b/src/ir_Multibrackets.cpp
@@ -0,0 +1,128 @@
+// Copyright 2020 David Conran
+
+#include "IRrecv.h"
+#include "IRsend.h"
+
+// Multibrackets protocol.
+//
+// Supports:
+//   Brand: Multibrackets,  Model: Motorized Swing mount large - 4500
+
+const uint16_t kMultibracketsTick = 5000;  // uSeconds
+const uint16_t kMultibracketsHdrMark = 3 * kMultibracketsTick;  // uSeconds
+const uint16_t kMultibracketsFooterSpace = 6 * kMultibracketsTick;  // uSeconds
+const uint8_t kMultibracketsTolerance = 5;  // Percent
+const uint16_t kMultibracketsFreq = 38000;  // Hertz
+
+#if SEND_MULTIBRACKETS
+// Send a Miltibrackets formatted message.
+//
+// Args:
+//   data:   The message to be sent.
+//   nbits:  The number of bits of the message to be sent.
+//           Typically kMultibracketsBits.
+//   repeat: The number of times the command is to be repeated.
+//
+// Status: BETA / Appears to be working.
+//
+// Ref:
+//  https://github.com/crankyoldgit/IRremoteESP8266/issues/1103
+//  http://info.multibrackets.com/data/common/manuals/4500_code.pdf
+void IRsend::sendMultibrackets(uint64_t data, uint16_t nbits, uint16_t repeat) {
+  enableIROut(kMultibracketsFreq);
+  for (uint16_t r = 0; r <= repeat; r++) {
+    uint16_t bits = nbits;
+    // Header
+    mark(kMultibracketsHdrMark);
+    // Data
+    // Send 0's until we get down to a bit size we can actually manage.
+    while (bits > sizeof(data) * 8) {
+      space(kMultibracketsTick);
+      bits--;
+    }
+    // Send the supplied data.
+    for (uint64_t mask = 1ULL << (bits - 1); mask; mask >>= 1)
+      if (data & mask)  // Send a 1
+        mark(kMultibracketsTick);
+      else  // Send a 0
+        space(kMultibracketsTick);
+    // Footer
+    space(kMultibracketsFooterSpace);
+  }
+}
+#endif  // SEND_MULTIBRACKETS
+
+#if DECODE_MULTIBRACKETS
+// Decode the Multibrackets message.
+//
+// Args:
+//   results: Ptr to the data to decode and where to store the decode result.
+//   offset:  The starting index to use when attempting to decode the raw data.
+//            Typically/Defaults to kStartOffset.
+//   nbits:   The number of data bits to expect. Typically kMultibracketsBits.
+//   strict:  Flag indicating if we should perform strict matching.
+// Returns:
+//   boolean: True if it can decode it, false if it can't.
+//
+// Status: BETA / Appears to be working.
+//
+// Ref:
+//  https://github.com/crankyoldgit/IRremoteESP8266/issues/1103
+//  http://info.multibrackets.com/data/common/manuals/4500_code.pdf
+bool IRrecv::decodeMultibrackets(decode_results *results, uint16_t offset,
+                                 const uint16_t nbits, const bool strict) {
+  // Compliance
+  if (strict && nbits != kMultibracketsBits)
+    return false;  // Doesn't match our protocol defn.
+
+  // Check there is enough unprocessed buffer left.
+  if (results->rawlen < offset) return false;
+
+  // Header
+  int32_t remaining = *(results->rawbuf + offset);
+  if (!matchAtLeast(remaining, kMultibracketsHdrMark, kMultibracketsTolerance))
+    return false;
+  remaining -= (kMultibracketsHdrMark / kRawTick);  // Remove the header.
+
+  // We are done with the header. Onto the data.
+  bool bit = true;
+  uint16_t bitsSoFar = 0;
+  uint64_t data = 0;
+  // Keep going till we run out of message or expected bits.
+  while (offset <= results->rawlen && bitsSoFar < nbits) {
+    // Have we finished processing this rawbuf value yet?
+    if (remaining <= 0) {  // No more possible "bits" left in this value.
+      // Invert the bit for next time, and move along the rawbuf.
+      bit = !bit;
+      offset++;
+      // Load the next data point if there is one.
+      if (offset <= results->rawlen) remaining = *(results->rawbuf + offset);
+    } else {  // Look for more bits in this entry.
+      if (matchAtLeast(remaining, kMultibracketsTick,
+          kMultibracketsTolerance)) {  // There is!
+        data <<= 1;
+        data += bit;
+        bitsSoFar++;
+      }
+      remaining -= (kMultibracketsTick / kRawTick);  // Remove the "bit".
+    }
+  }
+
+  // Compliance
+  if (bitsSoFar != nbits) return false;
+
+  // Footer
+  if (results->rawlen <= offset && !matchAtLeast(*(results->rawbuf + offset),
+                                                 kMultibracketsFooterSpace,
+                                                 kMultibracketsTolerance))
+    return false;
+
+  // Success
+  results->decode_type = decode_type_t::MULTIBRACKETS;
+  results->value = data;
+  results->bits = nbits;
+  results->address = 0;
+  results->command = 0;
+  return true;
+}
+#endif  // DECODE_MULTIBRACKETS
diff --git a/src/locale/defaults.h b/src/locale/defaults.h
index a04f06e5..184ccf03 100644
--- a/src/locale/defaults.h
+++ b/src/locale/defaults.h
@@ -598,6 +598,9 @@
 #ifndef D_STR_MITSUBISHI_HEAVY_88
 #define D_STR_MITSUBISHI_HEAVY_88 "MITSUBISHI_HEAVY_88"
 #endif  // D_STR_MITSUBISHI_HEAVY_88
+#ifndef D_STR_MULTIBRACKETS
+#define D_STR_MULTIBRACKETS "MULTIBRACKETS"
+#endif  // D_STR_MULTIBRACKETS
 #ifndef D_STR_MWM
 #define D_STR_MWM "MWM"
 #endif  // D_STR_MWM
diff --git a/test/ir_Multibrackets_test.cpp b/test/ir_Multibrackets_test.cpp
new file mode 100644
index 00000000..7b58b333
--- /dev/null
+++ b/test/ir_Multibrackets_test.cpp
@@ -0,0 +1,98 @@
+// Copyright 2020 David Conran
+
+#include "IRac.h"
+#include "IRrecv.h"
+#include "IRrecv_test.h"
+#include "IRsend.h"
+#include "IRsend_test.h"
+#include "gtest/gtest.h"
+
+// Tests for decodeMultibrackets().
+
+// Ref: https://github.com/crankyoldgit/IRremoteESP8266/issues/1103
+
+TEST(TestDecodeMultibrackets, RealExample) {
+  IRsendTest irsend(kGpioUnused);
+  IRrecv irrecv(kGpioUnused);
+  // The 1 + ok keypress:
+  uint16_t rawData_1[7] = {20100, 20472, 15092, 30704, 20102, 20472, 15086};
+  irsend.begin();
+  irsend.reset();
+  irsend.sendRaw(rawData_1, 7, 38);
+  irsend.makeDecodeResult();
+
+  ASSERT_TRUE(irrecv.decode(&irsend.capture));
+  ASSERT_EQ(decode_type_t::MULTIBRACKETS, irsend.capture.decode_type);
+  ASSERT_EQ(kMultibracketsBits, irsend.capture.bits);
+  EXPECT_EQ(0x87, irsend.capture.value);
+  EXPECT_EQ(0x0, irsend.capture.address);
+  EXPECT_EQ(0x0, irsend.capture.command);
+
+  // ok keypress.
+  const uint16_t rawData_2[11] = {
+      25124, 5108, 5038, 5110, 5034, 40940, 25132, 5108, 5036, 5110, 5036};
+
+  irsend.begin();
+  irsend.reset();
+  irsend.sendRaw(rawData_2, 11, 38);
+  irsend.makeDecodeResult();
+
+  ASSERT_TRUE(irrecv.decode(&irsend.capture));
+  ASSERT_EQ(decode_type_t::MULTIBRACKETS, irsend.capture.decode_type);
+  ASSERT_EQ(kMultibracketsBits, irsend.capture.bits);
+  EXPECT_EQ(0xD4, irsend.capture.value);
+  EXPECT_EQ(0x0, irsend.capture.address);
+  EXPECT_EQ(0x0, irsend.capture.command);
+}
+
+TEST(TestDecodeMultibrackets, SyntheticExample) {
+  IRsendTest irsend(kGpioUnused);
+  IRrecv irrecv(kGpioUnused);
+  irsend.begin();
+  irsend.reset();
+  irsend.sendMultibrackets(0x87);
+  irsend.makeDecodeResult();
+
+  ASSERT_TRUE(irrecv.decode(&irsend.capture));
+  EXPECT_EQ(decode_type_t::MULTIBRACKETS, irsend.capture.decode_type);
+  EXPECT_EQ(kMultibracketsBits, irsend.capture.bits);
+  EXPECT_EQ(0x87, irsend.capture.value);
+  EXPECT_EQ(0x0, irsend.capture.address);
+  EXPECT_EQ(0x0, irsend.capture.command);
+
+  // Real data is:
+  //   uint16_t rawData[7] = {20100, 20472, 15092, 30704, 20102, 20472, 15086};
+
+  EXPECT_EQ(
+      "f38000d50m20000s20000m15000s30000m20000s20000m15000s30000",
+      irsend.outputStr());
+}
+
+TEST(TestUtils, Housekeeping) {
+  ASSERT_EQ("MULTIBRACKETS", typeToString(decode_type_t::MULTIBRACKETS));
+  ASSERT_EQ(decode_type_t::MULTIBRACKETS, strToDecodeType("MULTIBRACKETS"));
+  ASSERT_FALSE(hasACState(decode_type_t::MULTIBRACKETS));
+  ASSERT_FALSE(IRac::isProtocolSupported(decode_type_t::MULTIBRACKETS));
+  ASSERT_EQ(kMultibracketsBits,
+            IRsend::defaultBits(decode_type_t::MULTIBRACKETS));
+  ASSERT_EQ(kMultibracketsDefaultRepeat,
+            IRsend::minRepeats(decode_type_t::MULTIBRACKETS));
+}
+
+TEST(TestDecodeMultibrackets, ShortNoRepeatExample) {
+  IRsendTest irsend(kGpioUnused);
+  IRrecv irrecv(kGpioUnused);
+  // The 1 + ok keypress: (edited to be bare minimum)
+  uint16_t rawData[3] = {20100, 20472, 15092};
+  irsend.begin();
+  irsend.reset();
+  irsend.sendRaw(rawData, 3, 38);
+  irsend.makeDecodeResult();
+
+  ASSERT_TRUE(irrecv.decode(&irsend.capture));
+  ASSERT_EQ(decode_type_t::MULTIBRACKETS, irsend.capture.decode_type);
+  ASSERT_EQ(kMultibracketsBits, irsend.capture.bits);
+  EXPECT_EQ(0x87, irsend.capture.value);
+  EXPECT_EQ(0x0, irsend.capture.address);
+  EXPECT_EQ(0x0, irsend.capture.command);
+}