diff --git a/lib/Hoymiles/src/Hoymiles.cpp b/lib/Hoymiles/src/Hoymiles.cpp
index 32074e8..5867527 100644
--- a/lib/Hoymiles/src/Hoymiles.cpp
+++ b/lib/Hoymiles/src/Hoymiles.cpp
@@ -6,6 +6,9 @@
 #include "inverters/HM_1CH.h"
 #include "inverters/HM_2CH.h"
 #include "inverters/HM_4CH.h"
+#include "inverters/HMS_1CH.h"
+#include "inverters/HMS_2CH.h"
+#include "inverters/HMS_4CH.h"
 #include <Arduino.h>
 
 #define HOY_SEMAPHORE_TAKE() xSemaphoreTake(_xSemaphore, portMAX_DELAY)
@@ -85,7 +88,13 @@ void HoymilesClass::loop()
 std::shared_ptr<InverterAbstract> HoymilesClass::addInverter(const char* name, uint64_t serial)
 {
     std::shared_ptr<InverterAbstract> i = nullptr;
-    if (HM_4CH::isValidSerial(serial)) {
+    if (HMS_4CH::isValidSerial(serial)) {
+        i = std::make_shared<HMS_4CH>(serial);
+    } else if (HMS_2CH::isValidSerial(serial)) {
+        i = std::make_shared<HMS_2CH>(serial);
+    } else if (HMS_1CH::isValidSerial(serial)) {
+        i = std::make_shared<HMS_1CH>(serial);
+    } else if (HM_4CH::isValidSerial(serial)) {
         i = std::make_shared<HM_4CH>(serial);
     } else if (HM_2CH::isValidSerial(serial)) {
         i = std::make_shared<HM_2CH>(serial);
diff --git a/lib/Hoymiles/src/HoymilesRadio.h b/lib/Hoymiles/src/HoymilesRadio.h
index 6963361..e80975c 100644
--- a/lib/Hoymiles/src/HoymilesRadio.h
+++ b/lib/Hoymiles/src/HoymilesRadio.h
@@ -8,6 +8,7 @@
 #include <memory>
 #include <nRF24L01.h>
 #include <queue>
+#include <cmt2300a.h>
 
 // number of fragments hold in buffer
 #define FRAGMENT_BUFFER_SIZE 30
diff --git a/lib/Hoymiles/src/inverters/HMS_1CH.cpp b/lib/Hoymiles/src/inverters/HMS_1CH.cpp
new file mode 100644
index 0000000..a4e05c9
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_1CH.cpp
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Thomas Basler and others
+ */
+#include "HMS_1CH.h"
+
+HMS_1CH::HMS_1CH(uint64_t serial)
+    : HMS_Abstract(serial) {};
+
+bool HMS_1CH::isValidSerial(uint64_t serial)
+{
+    // serial >= 0x112400000000 && serial <= 0x112499999999
+    uint16_t preSerial = (serial >> 32) & 0xffff;
+    return preSerial == 0x1124;
+}
+
+String HMS_1CH::typeName()
+{
+    return "HMS-300, HMS-350, HMS-400, HMS-450, HMS-500";
+}
+
+const std::list<byteAssign_t>* HMS_1CH::getByteAssignment()
+{
+    return &byteAssignment;
+}
\ No newline at end of file
diff --git a/lib/Hoymiles/src/inverters/HMS_1CH.h b/lib/Hoymiles/src/inverters/HMS_1CH.h
new file mode 100644
index 0000000..8db300c
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_1CH.h
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include "HMS_Abstract.h"
+#include <list>
+
+class HMS_1CH : public HMS_Abstract {
+public:
+    explicit HMS_1CH(uint64_t serial);
+    static bool isValidSerial(uint64_t serial);
+    String typeName();
+    const std::list<byteAssign_t>* getByteAssignment();
+
+private:
+    const std::list<byteAssign_t> byteAssignment = {
+        { TYPE_DC, CH0, FLD_UDC, UNIT_V, 2, 2, 10, false, 1 },
+        { TYPE_DC, CH0, FLD_IDC, UNIT_A, 4, 2, 100, false, 2 },
+        { TYPE_DC, CH0, FLD_PDC, UNIT_W, 6, 2, 10, false, 1 },
+        { TYPE_DC, CH0, FLD_YD, UNIT_WH, 12, 2, 1, false, 0 },
+        { TYPE_DC, CH0, FLD_YT, UNIT_KWH, 8, 4, 1000, false, 3 },
+        { TYPE_DC, CH0, FLD_IRR, UNIT_PCT, CALC_IRR_CH, CH0, CMD_CALC, false, 3 },
+
+        { TYPE_AC, CH0, FLD_UAC, UNIT_V, 14, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_IAC, UNIT_A, 22, 2, 100, false, 2 },
+        { TYPE_AC, CH0, FLD_PAC, UNIT_W, 18, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_PRA, UNIT_VA, 20, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_F, UNIT_HZ, 16, 2, 100, false, 2 },
+        { TYPE_AC, CH0, FLD_PF, UNIT_NONE, 24, 2, 1000, false, 3 },
+
+        { TYPE_INV, CH0, FLD_T, UNIT_C, 26, 2, 10, true, 1 },
+        { TYPE_INV, CH0, FLD_EVT_LOG, UNIT_NONE, 28, 2, 1, false, 0 },
+
+        { TYPE_AC, CH0, FLD_YD, UNIT_WH, CALC_YD_CH0, 0, CMD_CALC, false, 0 },
+        { TYPE_AC, CH0, FLD_YT, UNIT_KWH, CALC_YT_CH0, 0, CMD_CALC, false, 3 },
+        { TYPE_AC, CH0, FLD_PDC, UNIT_W, CALC_PDC_CH0, 0, CMD_CALC, false, 1 },
+        { TYPE_AC, CH0, FLD_EFF, UNIT_PCT, CALC_EFF_CH0, 0, CMD_CALC, false, 3 }
+    };
+};
\ No newline at end of file
diff --git a/lib/Hoymiles/src/inverters/HMS_2CH.cpp b/lib/Hoymiles/src/inverters/HMS_2CH.cpp
new file mode 100644
index 0000000..a3ee7ce
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_2CH.cpp
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Thomas Basler and others
+ */
+#include "HMS_2CH.h"
+
+HMS_2CH::HMS_2CH(uint64_t serial)
+    : HMS_Abstract(serial) {};
+
+bool HMS_2CH::isValidSerial(uint64_t serial)
+{
+    // serial >= 0x114400000000 && serial <= 0x114499999999
+    uint16_t preSerial = (serial >> 32) & 0xffff;
+    return preSerial == 0x1144;
+}
+
+String HMS_2CH::typeName()
+{
+    return "HMS-600, HMS-700, HMS-800, HMS-900, HMS-1000";
+}
+
+const std::list<byteAssign_t>* HMS_2CH::getByteAssignment()
+{
+    return &byteAssignment;
+}
\ No newline at end of file
diff --git a/lib/Hoymiles/src/inverters/HMS_2CH.h b/lib/Hoymiles/src/inverters/HMS_2CH.h
new file mode 100644
index 0000000..1815a68
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_2CH.h
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include "HMS_Abstract.h"
+#include <list>
+
+class HMS_2CH : public HMS_Abstract {
+public:
+    explicit HMS_2CH(uint64_t serial);
+    static bool isValidSerial(uint64_t serial);
+    String typeName();
+    const std::list<byteAssign_t>* getByteAssignment();
+
+private:
+    const std::list<byteAssign_t> byteAssignment = {
+        { TYPE_DC, CH0, FLD_UDC, UNIT_V, 2, 2, 10, false, 1 },
+        { TYPE_DC, CH0, FLD_IDC, UNIT_A, 6, 2, 100, false, 2 },
+        { TYPE_DC, CH0, FLD_PDC, UNIT_W, 10, 2, 10, false, 1 },
+        { TYPE_DC, CH0, FLD_YT, UNIT_KWH, 14, 4, 1000, false, 3 },
+        { TYPE_DC, CH0, FLD_YD, UNIT_WH, 22, 2, 1, false, 0 },
+        { TYPE_DC, CH0, FLD_IRR, UNIT_PCT, CALC_IRR_CH, CH0, CMD_CALC, false, 3 },
+
+        { TYPE_DC, CH1, FLD_UDC, UNIT_V, 4, 2, 10, false, 1 },
+        { TYPE_DC, CH1, FLD_IDC, UNIT_A, 8, 2, 100, false, 2 },
+        { TYPE_DC, CH1, FLD_PDC, UNIT_W, 12, 2, 10, false, 1 },
+        { TYPE_DC, CH1, FLD_YT, UNIT_KWH, 18, 4, 1000, false, 3 },
+        { TYPE_DC, CH1, FLD_YD, UNIT_WH, 24, 2, 1, false, 0 },
+        { TYPE_DC, CH1, FLD_IRR, UNIT_PCT, CALC_IRR_CH, CH1, CMD_CALC, false, 3 },
+
+        { TYPE_AC, CH0, FLD_UAC, UNIT_V, 26, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_IAC, UNIT_A, 34, 2, 100, false, 2 },
+        { TYPE_AC, CH0, FLD_PAC, UNIT_W, 30, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_PRA, UNIT_VA, 32, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_F, UNIT_HZ, 28, 2, 100, false, 2 },
+        { TYPE_AC, CH0, FLD_PF, UNIT_NONE, 36, 2, 1000, false, 3 },
+
+        { TYPE_INV, CH0, FLD_T, UNIT_C, 38, 2, 10, true, 1 },
+        { TYPE_INV, CH0, FLD_EVT_LOG, UNIT_NONE, 40, 2, 1, false, 0 },
+
+        { TYPE_AC, CH0, FLD_YD, UNIT_WH, CALC_YD_CH0, 0, CMD_CALC, false, 0 },
+        { TYPE_AC, CH0, FLD_YT, UNIT_KWH, CALC_YT_CH0, 0, CMD_CALC, false, 3 },
+        { TYPE_AC, CH0, FLD_PDC, UNIT_W, CALC_PDC_CH0, 0, CMD_CALC, false, 1 },
+        { TYPE_AC, CH0, FLD_EFF, UNIT_PCT, CALC_EFF_CH0, 0, CMD_CALC, false, 3 }
+    };
+};
\ No newline at end of file
diff --git a/lib/Hoymiles/src/inverters/HMS_4CH.cpp b/lib/Hoymiles/src/inverters/HMS_4CH.cpp
new file mode 100644
index 0000000..c9f01f2
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_4CH.cpp
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Thomas Basler and others
+ */
+#include "HMS_4CH.h"
+
+HMS_4CH::HMS_4CH(uint64_t serial)
+    : HMS_Abstract(serial) {};
+
+bool HMS_4CH::isValidSerial(uint64_t serial)
+{
+    // serial >= 0x114400000000 && serial <= 0x114499999999
+    uint16_t preSerial = (serial >> 32) & 0xffff;
+    return preSerial == 0x1164;
+}
+
+String HMS_4CH::typeName()
+{
+    return "HMS-1600, HMS-1800, HMS-2000";
+}
+
+const std::list<byteAssign_t>* HMS_4CH::getByteAssignment()
+{
+    return &byteAssignment;
+}
\ No newline at end of file
diff --git a/lib/Hoymiles/src/inverters/HMS_4CH.h b/lib/Hoymiles/src/inverters/HMS_4CH.h
new file mode 100644
index 0000000..f7e9bce
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_4CH.h
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include "HMS_Abstract.h"
+
+class HMS_4CH : public HMS_Abstract {
+public:
+    explicit HMS_4CH(uint64_t serial);
+    static bool isValidSerial(uint64_t serial);
+    String typeName();
+    const std::list<byteAssign_t>* getByteAssignment();
+
+private:
+    const std::list<byteAssign_t> byteAssignment = {
+        { TYPE_DC, CH0, FLD_UDC, UNIT_V, 2, 2, 10, false, 1 },
+        { TYPE_DC, CH0, FLD_IDC, UNIT_A, 6, 2, 100, false, 2 },
+        { TYPE_DC, CH0, FLD_PDC, UNIT_W, 10, 2, 10, false, 1 },
+        { TYPE_DC, CH0, FLD_YD, UNIT_WH, 22, 2, 1, false, 0 },
+        { TYPE_DC, CH0, FLD_YT, UNIT_KWH, 14, 4, 1000, false, 3 },
+        { TYPE_DC, CH0, FLD_IRR, UNIT_PCT, CALC_IRR_CH, CH0, CMD_CALC, false, 3 },
+
+        { TYPE_DC, CH1, FLD_UDC, UNIT_V, 4, 2, 10, false, 1 },
+        { TYPE_DC, CH1, FLD_IDC, UNIT_A, 8, 2, 100, false, 2 },
+        { TYPE_DC, CH1, FLD_PDC, UNIT_W, 12, 2, 10, false, 1 },
+        { TYPE_DC, CH1, FLD_YD, UNIT_WH, 24, 2, 1, false, 0 },
+        { TYPE_DC, CH1, FLD_YT, UNIT_KWH, 18, 4, 1000, false, 3 },
+        { TYPE_DC, CH1, FLD_IRR, UNIT_PCT, CALC_IRR_CH, CH1, CMD_CALC, false, 3 },
+
+        { TYPE_DC, CH2, FLD_UDC, UNIT_V, 26, 2, 10, false, 1 },
+        { TYPE_DC, CH2, FLD_IDC, UNIT_A, 30, 2, 100, false, 2 },
+        { TYPE_DC, CH2, FLD_PDC, UNIT_W, 34, 2, 10, false, 1 },
+        { TYPE_DC, CH2, FLD_YD, UNIT_WH, 46, 2, 1, false, 0 },
+        { TYPE_DC, CH2, FLD_YT, UNIT_KWH, 38, 4, 1000, false, 3 },
+        { TYPE_DC, CH2, FLD_IRR, UNIT_PCT, CALC_IRR_CH, CH2, CMD_CALC, false, 3 },
+
+        { TYPE_DC, CH3, FLD_UDC, UNIT_V, 28, 2, 10, false, 1 },
+        { TYPE_DC, CH3, FLD_IDC, UNIT_A, 32, 2, 100, false, 2 },
+        { TYPE_DC, CH3, FLD_PDC, UNIT_W, 36, 2, 10, false, 1 },
+        { TYPE_DC, CH3, FLD_YD, UNIT_WH, 48, 2, 1, false, 0 },
+        { TYPE_DC, CH3, FLD_YT, UNIT_KWH, 42, 4, 1000, false, 3 },
+        { TYPE_DC, CH3, FLD_IRR, UNIT_PCT, CALC_IRR_CH, CH3, CMD_CALC, false, 3 },
+
+        { TYPE_AC, CH0, FLD_UAC, UNIT_V, 50, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_IAC, UNIT_A, 58, 2, 100, false, 2 },
+        { TYPE_AC, CH0, FLD_PAC, UNIT_W, 54, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_PRA, UNIT_VA, 56, 2, 10, false, 1 },
+        { TYPE_AC, CH0, FLD_F, UNIT_HZ, 52, 2, 100, false, 2 },
+        { TYPE_AC, CH0, FLD_PF, UNIT_NONE, 60, 2, 1000, false, 3 },
+
+        { TYPE_INV, CH0, FLD_T, UNIT_C, 62, 2, 10, true, 1 },
+        { TYPE_INV, CH0, FLD_EVT_LOG, UNIT_NONE, 64, 2, 1, false, 0 },
+
+        { TYPE_AC, CH0, FLD_YD, UNIT_WH, CALC_YD_CH0, 0, CMD_CALC, false, 0 },
+        { TYPE_AC, CH0, FLD_YT, UNIT_KWH, CALC_YT_CH0, 0, CMD_CALC, false, 3 },
+        { TYPE_AC, CH0, FLD_PDC, UNIT_W, CALC_PDC_CH0, 0, CMD_CALC, false, 1 },
+        { TYPE_AC, CH0, FLD_EFF, UNIT_PCT, CALC_EFF_CH0, 0, CMD_CALC, false, 3 }
+    };
+};
\ No newline at end of file
diff --git a/lib/Hoymiles/src/inverters/HMS_Abstract.cpp b/lib/Hoymiles/src/inverters/HMS_Abstract.cpp
new file mode 100644
index 0000000..c0070a9
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_Abstract.cpp
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Thomas Basler and others
+ */
+#include "HMS_Abstract.h"
+
+HMS_Abstract::HMS_Abstract(uint64_t serial)
+    : HM_Abstract(serial) {};
diff --git a/lib/Hoymiles/src/inverters/HMS_Abstract.h b/lib/Hoymiles/src/inverters/HMS_Abstract.h
new file mode 100644
index 0000000..20bfa5f
--- /dev/null
+++ b/lib/Hoymiles/src/inverters/HMS_Abstract.h
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include "HM_Abstract.h"
+
+class HMS_Abstract : public HM_Abstract {
+public:
+    explicit HMS_Abstract(uint64_t serial);
+};
\ No newline at end of file