Feature: Add support for HERF 1 channel inverters

lib/Hoymiles/src/Hoymiles.cpp

@@ -4,6 +4,7 @@
  */
 #include "Hoymiles.h"
 #include "Utils.h"
+#include "inverters/HERF_1CH.h"
 #include "inverters/HERF_2CH.h"
 #include "inverters/HERF_4CH.h"
 #include "inverters/HMS_1CH.h"
@@ -173,6 +174,8 @@ std::shared_ptr<InverterAbstract> HoymilesClass::addInverter(const char* name, c
         i = std::make_shared<HM_2CH>(_radioNrf.get(), serial);
     } else if (HM_1CH::isValidSerial(serial)) {
         i = std::make_shared<HM_1CH>(_radioNrf.get(), serial);
+    } else if (HERF_1CH::isValidSerial(serial)) {
+        i = std::make_shared<HERF_1CH>(_radioNrf.get(), serial);
     } else if (HERF_2CH::isValidSerial(serial)) {
         i = std::make_shared<HERF_2CH>(_radioNrf.get(), serial);
     } else if (HERF_4CH::isValidSerial(serial)) {

lib/Hoymiles/src/inverters/HERF_1CH.cpp

@@ -0,0 +1,55 @@
+
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2022-2024 Thomas Basler and others
+ */
+#include "HERF_1CH.h"
+
+static const 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_CH_IRR, CH0, 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_Q, UNIT_VAR, 40, 2, 10, false, 1 }, // to be verified
+    { 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 }, // to be verified
+    { TYPE_INV, CH0, FLD_EVT_LOG, UNIT_NONE, 40, 2, 1, false, 0 }, // to be verified
+
+    { TYPE_INV, CH0, FLD_YD, UNIT_WH, CALC_TOTAL_YD, 0, CMD_CALC, false, 0 },
+    { TYPE_INV, CH0, FLD_YT, UNIT_KWH, CALC_TOTAL_YT, 0, CMD_CALC, false, 3 },
+    { TYPE_INV, CH0, FLD_PDC, UNIT_W, CALC_TOTAL_PDC, 0, CMD_CALC, false, 1 },
+    { TYPE_INV, CH0, FLD_EFF, UNIT_PCT, CALC_TOTAL_EFF, 0, CMD_CALC, false, 3 }
+};
+
+HERF_1CH::HERF_1CH(HoymilesRadio* radio, const uint64_t serial)
+    : HM_Abstract(radio, serial) {};
+
+bool HERF_1CH::isValidSerial(const uint64_t serial)
+{
+    // serial >= 0x284100000000 && serial <= 0x2841ffffffff
+    uint16_t preSerial = (serial >> 32) & 0xffff;
+    return preSerial == 0x2841;
+}
+
+String HERF_1CH::typeName() const
+{
+    return "HERF-300-1T";
+}
+
+const byteAssign_t* HERF_1CH::getByteAssignment() const
+{
+    return byteAssignment;
+}
+
+uint8_t HERF_1CH::getByteAssignmentSize() const
+{
+    return sizeof(byteAssignment) / sizeof(byteAssignment[0]);
+}

lib/Hoymiles/src/inverters/HERF_1CH.h

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include "HM_Abstract.h"
+
+class HERF_1CH : public HM_Abstract {
+public:
+    explicit HERF_1CH(HoymilesRadio* radio, const uint64_t serial);
+    static bool isValidSerial(const uint64_t serial);
+    String typeName() const;
+    const byteAssign_t* getByteAssignment() const;
+    uint8_t getByteAssignmentSize() const;
+};

lib/Hoymiles/src/inverters/README.md

@@ -11,5 +11,6 @@
 | HMS_4CH       | HMS-1600/1800/2000-4T       | 1164             |
 | HMT_4CH       | HMT-1600/1800/2000-4T       | 1361             |
 | HMT_6CH       | HMT-1800/2250-6T            | 1382             |
+| HERF_1CH      | HERF 300                    | 2841             |
 | HERF_2CH      | HERF 800                    | 2821             |
 | HERF_4CH      | HERF 1800                   | 2801             |