Add support for EL30V2 device in manifest and device builder

Remove deprecated constructor in option flow

.dockerignore

@@ -0,0 +1,3 @@
+*/__pycache__/
+*.pyc
+.DS_Store

.github/workflows/test.yaml

@@ -0,0 +1,22 @@
+name: Unittests
+on:
+  push:
+  pull_request:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+    - name: Run unittests
+      run: python3 -m unittest discover -s tests -p "*_test.py"

.gitignore

@@ -1,2 +1,3 @@
 */__pycache__/
 *.pyc
+.DS_Store

Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3
+
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+
+COPY tests ./tests
+COPY custom_components ./custom_components
+
+RUN python3 -m unittest discover -s tests -p "*_test.py"

README.md

@@ -24,7 +24,7 @@ After the installation, you can use this button to install the integration:
 - AC200L (untested)
 - AC200M
 - AC300 (tested)
-- AC500
+- AC500 (tested)
 - EB3A
 - EP500
 - EP500P

custom_components/bluetti_bt/__init__.py

@@ -38,9 +38,9 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     address = entry.data.get(CONF_ADDRESS)
     device_name = entry.data.get(CONF_NAME)
     use_controls = entry.data.get(CONF_USE_CONTROLS)
-    polling_interval = entry.data.get(CONF_POLLING_INTERVAL, 20)
+    polling_interval = entry.data.get(CONF_POLLING_INTERVAL, 60)
     persistent_conn = entry.data.get(CONF_PERSISTENT_CONN, False)
-    polling_timeout = entry.data.get(CONF_POLLING_TIMEOUT, 45)
+    polling_timeout = entry.data.get(CONF_POLLING_TIMEOUT, 120)
     max_retries = entry.data.get(CONF_MAX_RETRIES, 5)
 
     if address is None:

custom_components/bluetti_bt/binary_sensor.py

@@ -86,6 +86,7 @@ class BluettiBinarySensor(CoordinatorEntity, BinarySensorEntity):
         e_name = f"{device_info.get('name')} {name}"
         self._address = address
         self._response_key = response_key
+        self._unavailable_counter = 5
 
         self._attr_device_info = device_info
         self._attr_name = name

custom_components/bluetti_bt/bluetti_bt_lib/base_devices/ProtocolV1Device.py

@@ -14,6 +14,8 @@ class ProtocolV1Device(BluettiDevice):
         # Device info
         self.struct.add_string_field("device_type", 10, 6)
         self.struct.add_sn_field("serial_number", 17)
+        self.struct.add_version_field('arm_version', 23)
+        self.struct.add_version_field('dsp_version', 25)
 
         # Power IO
         self.struct.add_uint_field("dc_input_power", 36)

custom_components/bluetti_bt/bluetti_bt_lib/bluetooth/device_reader.py

@@ -53,6 +53,8 @@ class DeviceReader:
         if filter_registers is not None:
             polling_commands = filter_registers
             pack_commands = []
+        _LOGGER.info("Polling commands: " + ",".join([f"{c.starting_address}-{c.starting_address + c.quantity - 1}" for c in polling_commands]))
+        _LOGGER.info("Pack comands: " + ",".join([f"{c.starting_address}-{c.starting_address + c.quantity - 1}" for c in pack_commands]))
 
         parsed_data: dict = {}
 
@@ -66,8 +68,8 @@ class DeviceReader:
                                 await self.client.connect()
                             break
                         except Exception as e:
-                            if attempt == self.max_retries or attempt == 1:
+                            if attempt == self.max_retries:
-                                raise  # pass exception on max_retries attempt
+                                raise e # pass exception on max_retries attempt
                             else:
                                 _LOGGER.warning(
                                     f"Connect unsucessful (attempt {attempt}): {e}. Retrying..."
@@ -117,6 +119,11 @@ class DeviceReader:
                                 _LOGGER.warning("Pack polling failed (pack_num %i doesn't match expected %i)", set_pack, pack)
                                 continue
 
+                            if self.bluetti_device.pack_num_max > 1:
+                                # We need to wait after switching packs 
+                                # for the data to be available
+                                await asyncio.sleep(5)
+                            
                             for command in pack_commands:
                                 # Request & parse result for each pack
                                 try:
@@ -136,8 +143,8 @@ class DeviceReader:
                                 except ParseError:
                                     _LOGGER.warning("Got a parse exception...")
 
-            except TimeoutError:
+            except TimeoutError as err:
-                _LOGGER.warning("Polling timed out. Trying again later")
+                _LOGGER.error(f"Polling timed out ({self.polling_timeout}s). Trying again later", exc_info=err)
                 return None
             except BleakError as err:
                 _LOGGER.error("Bleak error: %s", err)

custom_components/bluetti_bt/bluetti_bt_lib/devices/ac200l.py

@@ -28,6 +28,7 @@ class AC200L(ProtocolV1Device):
         self.struct.add_decimal_field("pack_voltage", 98, 2)  # Full pack voltage
         self.struct.add_uint_field("pack_battery_percent", 99)
         self.struct.add_decimal_array_field("cell_voltages", 105, 16, 2)  # internal
+        self.struct.add_version_field("pack_bms_version", 201)
 
         # Controls
         self.struct.add_bool_field("power_off", 3060)
@@ -39,12 +40,9 @@ class AC200L(ProtocolV1Device):
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers(
-            ReadHoldingRegisters(70, 5),
+            filter=lambda address: address <= 90 or address >= 256 # pack_polling_commands
-            ReadHoldingRegisters(86, 3),
+        )
-            ReadHoldingRegisters(92, 1),
-            ReadHoldingRegisters(3060, 2),
-        ]
 
     @property
     def writable_ranges(self) -> List[range]:
@@ -53,8 +51,6 @@ class AC200L(ProtocolV1Device):
     @property
     def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
         return [
-            ReadHoldingRegisters(91, 2),
+            ReadHoldingRegisters(91, 37),
-            ReadHoldingRegisters(96, 1),
+            ReadHoldingRegisters(201, 2),
-            ReadHoldingRegisters(98, 2),
-            ReadHoldingRegisters(105, 16)
         ]

custom_components/bluetti_bt/bluetti_bt_lib/devices/ac200m.py

@@ -28,6 +28,7 @@ class AC200M(ProtocolV1Device):
         self.struct.add_decimal_field("pack_voltage", 98, 2)  # Full pack voltage
         self.struct.add_uint_field("pack_battery_percent", 99)
         self.struct.add_decimal_array_field("cell_voltages", 105, 16, 2)  # internal
+        self.struct.add_version_field("pack_bms_version", 201)
 
         # Controls
         self.struct.add_bool_field("power_off", 3060)
@@ -39,12 +40,9 @@ class AC200M(ProtocolV1Device):
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers(
-            ReadHoldingRegisters(70, 5),
+            filter=lambda address: address <= 90 or address >= 256 # pack_polling_commands
-            ReadHoldingRegisters(86, 3),
+        )
-            ReadHoldingRegisters(92, 1),
-            ReadHoldingRegisters(3060, 2),
-        ]
 
     @property
     def writable_ranges(self) -> List[range]:
@@ -53,8 +51,6 @@ class AC200M(ProtocolV1Device):
     @property
     def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
         return [
-            ReadHoldingRegisters(91, 2),
+            ReadHoldingRegisters(91, 37),
-            ReadHoldingRegisters(96, 1),
+            ReadHoldingRegisters(201, 2),
-            ReadHoldingRegisters(98, 2),
-            ReadHoldingRegisters(105, 16)
         ]

custom_components/bluetti_bt/bluetti_bt_lib/devices/ac300.py

@@ -54,17 +54,9 @@ class AC300(ProtocolV1Device):
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers(
-            ReadHoldingRegisters(70, 11),
+            filter=lambda address: address <= 90 or address >= 256 # pack_polling_commands
-            ReadHoldingRegisters(86, 3),
+        )
-            ReadHoldingRegisters(92, 1),
-            ReadHoldingRegisters(3001, 1),
-            ReadHoldingRegisters(3004, 2),
-            ReadHoldingRegisters(3011, 1),
-            ReadHoldingRegisters(3013, 1),
-            ReadHoldingRegisters(3015, 2),
-            ReadHoldingRegisters(3061, 1),
-        ]
 
     @property
     def writable_ranges(self) -> List[range]:
@@ -76,9 +68,6 @@ class AC300(ProtocolV1Device):
     @property
     def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
         return [
-            ReadHoldingRegisters(91, 2),
+            ReadHoldingRegisters(91, 37),
-            ReadHoldingRegisters(96, 1),
-            ReadHoldingRegisters(98, 2),
-            ReadHoldingRegisters(105, 16),
             ReadHoldingRegisters(201, 2),
         ]

custom_components/bluetti_bt/bluetti_bt_lib/devices/ac500.py

@@ -34,6 +34,7 @@ class AC500(ProtocolV1Device):
         self.struct.add_decimal_field("pack_voltage", 98, 2)  # Full pack voltage
         self.struct.add_uint_field("pack_battery_percent", 99)
         self.struct.add_decimal_array_field("cell_voltages", 105, 16, 2)  # internal
+        self.struct.add_version_field('pack_bms_version', 201)
 
         # Controls
         self.struct.add_enum_field("ups_mode", 3001, UpsMode)
@@ -49,21 +50,13 @@ class AC500(ProtocolV1Device):
 
     @property
     def pack_num_max(self):
-        return 4
+        return 6
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers(
-            ReadHoldingRegisters(70, 11),
+            filter=lambda address: address <= 90 or address >= 256 # pack_polling_commands
-            ReadHoldingRegisters(86, 3),
+        )
-            ReadHoldingRegisters(92, 1),
-            ReadHoldingRegisters(3001, 1),
-            ReadHoldingRegisters(3004, 2),
-            ReadHoldingRegisters(3011, 1),
-            ReadHoldingRegisters(3013, 1),
-            ReadHoldingRegisters(3015, 2),
-            ReadHoldingRegisters(3061, 1),
-        ]
 
     @property
     def writable_ranges(self) -> List[range]:
@@ -75,8 +68,6 @@ class AC500(ProtocolV1Device):
     @property
     def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
         return [
-            ReadHoldingRegisters(91, 2),
+            ReadHoldingRegisters(91, 37),
-            ReadHoldingRegisters(96, 1),
+            ReadHoldingRegisters(201, 2),
-            ReadHoldingRegisters(98, 2),
-            ReadHoldingRegisters(105, 16),
         ]

custom_components/bluetti_bt/bluetti_bt_lib/devices/eb3a.py

@@ -25,13 +25,7 @@ class EB3A(ProtocolV1Device):
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers()
-            ReadHoldingRegisters(77, 1),
-            ReadHoldingRegisters(86, 1),
-            ReadHoldingRegisters(3034, 1),
-            ReadHoldingRegisters(3060, 1),
-            ReadHoldingRegisters(3063, 5),
-        ]
 
     @property
     def writable_ranges(self) -> List[range]:

custom_components/bluetti_bt/bluetti_bt_lib/devices/el30v2.py

@@ -0,0 +1,8 @@
+"""Elite 30 V2 fields."""
+
+from ..base_devices.ProtocolV2Device import ProtocolV2Device
+
+
+class EL30V2(ProtocolV2Device):
+    def __init__(self, address: str, sn: str):
+        super().__init__(address, "EL30V2", sn) 

custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500.py

@@ -34,6 +34,7 @@ class EP500(ProtocolV1Device):
         self.struct.add_decimal_field("pack_voltage", 98, 2)  # Full pack voltage
         self.struct.add_uint_field("pack_battery_percent", 99)
         self.struct.add_decimal_array_field("cell_voltages", 105, 16, 2)  # internal
+        self.struct.add_version_field("pack_bms_version", 201)
 
         # Controls
         self.struct.add_enum_field("ups_mode", 3001, UpsMode)
@@ -49,17 +50,9 @@ class EP500(ProtocolV1Device):
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers(
-            ReadHoldingRegisters(70, 11),
+            filter=lambda address: address <= 90 or address >= 256 # pack_polling_commands
-            ReadHoldingRegisters(86, 3),
+        )
-            ReadHoldingRegisters(92, 1),
-            ReadHoldingRegisters(3001, 1),
-            ReadHoldingRegisters(3004, 2),
-            ReadHoldingRegisters(3011, 1),
-            ReadHoldingRegisters(3013, 1),
-            ReadHoldingRegisters(3015, 2),
-            ReadHoldingRegisters(3061, 1),
-        ]
 
     @property
     def writable_ranges(self) -> List[range]:
@@ -71,8 +64,6 @@ class EP500(ProtocolV1Device):
     @property
     def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
         return [
-            ReadHoldingRegisters(91, 2),
+            ReadHoldingRegisters(91, 37),
-            ReadHoldingRegisters(96, 1),
+            ReadHoldingRegisters(201, 2),
-            ReadHoldingRegisters(98, 2),
-            ReadHoldingRegisters(105, 16),
         ]

custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500p.py

@@ -34,6 +34,7 @@ class EP500P(ProtocolV1Device):
         self.struct.add_decimal_field("pack_voltage", 98, 2)  # Full pack voltage
         self.struct.add_uint_field("pack_battery_percent", 99)
         self.struct.add_decimal_array_field("cell_voltages", 105, 16, 2)  # internal
+        self.struct.add_version_field("pack_bms_version", 201)
 
         # Controls
         self.struct.add_enum_field("ups_mode", 3001, UpsMode)
@@ -49,17 +50,9 @@ class EP500P(ProtocolV1Device):
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers(
-            ReadHoldingRegisters(70, 11),
+            filter=lambda address: address <= 90 or address >= 256 # pack_polling_commands
-            ReadHoldingRegisters(86, 3),
+        )
-            ReadHoldingRegisters(92, 1),
-            ReadHoldingRegisters(3001, 1),
-            ReadHoldingRegisters(3004, 2),
-            ReadHoldingRegisters(3011, 1),
-            ReadHoldingRegisters(3013, 1),
-            ReadHoldingRegisters(3015, 2),
-            ReadHoldingRegisters(3061, 1),
-        ]
 
     @property
     def writable_ranges(self) -> List[range]:
@@ -71,8 +64,6 @@ class EP500P(ProtocolV1Device):
     @property
     def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
         return [
-            ReadHoldingRegisters(91, 2),
+            ReadHoldingRegisters(91, 37),
-            ReadHoldingRegisters(96, 1),
+            ReadHoldingRegisters(201, 2),
-            ReadHoldingRegisters(98, 2),
-            ReadHoldingRegisters(105, 16),
         ]

custom_components/bluetti_bt/bluetti_bt_lib/devices/ep600.py

@@ -97,28 +97,4 @@ class EP600(ProtocolV2Device):
 
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
-        return super().polling_commands + [
+        return self.struct.get_read_holding_registers()
-            ReadHoldingRegisters(2022, 2),
-            ReadHoldingRegisters(2213, 5),
-            ReadHoldingRegisters(1212, 3),
-            ReadHoldingRegisters(1220, 3),
-            ReadHoldingRegisters(1228, 3),
-            ReadHoldingRegisters(1236, 3),
-            ReadHoldingRegisters(1244, 3),
-            ReadHoldingRegisters(1300, 1),
-            ReadHoldingRegisters(1313, 3),
-            ReadHoldingRegisters(1319, 3),
-            ReadHoldingRegisters(1325, 3),
-            ReadHoldingRegisters(1500, 1),
-            ReadHoldingRegisters(1510, 3),
-            ReadHoldingRegisters(1517, 3),
-            ReadHoldingRegisters(1524, 3),
-            ReadHoldingRegisters(152, 1),
-            ReadHoldingRegisters(156, 1),
-            ReadHoldingRegisters(158, 1),
-            # KM - Consumption
-            ReadHoldingRegisters(1430, 15),
-            # KM - Totals
-            ReadHoldingRegisters(142, 5),
-
-        ]

custom_components/bluetti_bt/bluetti_bt_lib/field_attributes.py

@@ -125,6 +125,14 @@ FIELD_ATTRIBUTES: dict[str, FieldAttributes] = {
     "ac_input_power": PowerFieldAttributes("AC Input Power"),
     "ac_output_power": PowerFieldAttributes("AC Output Power"),
     "dc_output_power": PowerFieldAttributes("DC Output Power"),
+    "dsp_version": FieldAttributes(
+        type=FieldType.NUMERIC,
+        name=f"DSP Version",
+    ),
+    "arm_version": FieldAttributes(
+        type=FieldType.NUMERIC,
+        name=f"ARM Version",
+    ),
     "power_generation": EnergyFieldAttributes("Total Power Generation"),
     "total_battery_percent": FieldAttributes(
         type=FieldType.NUMERIC,

custom_components/bluetti_bt/bluetti_bt_lib/utils/device_builder.py

@@ -17,9 +17,10 @@ from ..devices.ep500p import EP500P
 from ..devices.ep600 import EP600
 from ..devices.ep760 import EP760
 from ..devices.ep800 import EP800
+from ..devices.el30v2 import EL30V2
 
 DEVICE_NAME_RE = re.compile(
-    r"^(AC60|AC70|AC70P|AC180|AC180P|AC200L|AC200M|AC300|AC500|EB3A|EP500|EP500P|EP600|EP760|EP800)(\d+)$"
+    r"^(AC60|AC70|AC70P|AC180|AC180P|AC200L|AC200M|AC300|AC500|EB3A|EP500|EP500P|EP600|EP760|EP800|EL30V2)(\d+)$"
 )
 
 
@@ -55,6 +56,8 @@ def build_device(address: str, name: str):
         return EP760(address, match[2])
     if match[1] == "EP800":
         return EP800(address, match[2])
+    if match[1] == "EL30V2":
+        return EL30V2(address, match[2])
 
 
 def get_type_by_bt_name(bt_name: str):

custom_components/bluetti_bt/bluetti_bt_lib/utils/struct.py

@@ -4,6 +4,7 @@
 
 from decimal import Decimal
 from enum import Enum
+from .commands import ReadHoldingRegisters
 import struct
 from typing import Any, List, Optional, Tuple, Type
 
@@ -179,6 +180,35 @@ class DeviceStruct:
 
     def add_sn_field(self, name: str, address: int):
         self.fields.append(SerialNumberField(name, address))
+        
+    def get_read_holding_registers(self, tolerance=20, filter=lambda address: True):
+        address_set = set()
+        for field in self.fields:
+            for address in range(field.address, field.address + field.size):
+                address_set.add(address)
+        # Filter out addresses that we specificly 
+        # specified to exclude.
+        for address in set(address_set):
+            if not filter(address):
+                address_set.remove(address)
+        # Fast path: no addresses -> no commands.
+        if not address_set:
+            return []
+        
+        commands = []
+
+        address_list = sorted(address_set)
+        start = address_list[0]
+        last = address_list[0]
+        for address in address_list[1:]:
+            # Create a new group if there's a gap 
+            # in the addresses.
+            if address >= last + tolerance:
+                commands.append(ReadHoldingRegisters(start, last - start + 1))
+                start = address
+            last = address
+        commands.append(ReadHoldingRegisters(start, last - start + 1))    
+        return commands
 
     def parse(self, starting_address: int, data: bytes) -> dict:
         # Offsets and size are counted in 2 byte chunks, so for the range we

custom_components/bluetti_bt/config_flow.py

@@ -130,7 +130,7 @@ class OptionsFlowHandler(config_entries.OptionsFlow):
 
     def __init__(self, config_entry: config_entries.ConfigEntry) -> None:
         """Initialize options flow."""
-        self.config_entry = config_entry
+        super().__init__()
 
     async def async_step_init(
         self, user_input: dict[str, Any] | None = None
@@ -150,7 +150,7 @@ class OptionsFlowHandler(config_entries.OptionsFlow):
             if user_input[CONF_MAX_RETRIES] < 1:
                 return self.async_abort(reason="invalid_retries")
 
-            changed = self.hass.config_entries.async_update_entry(
+            self.hass.config_entries.async_update_entry(
                 self.config_entry,
                 data={
                     **self.config_entry.data,
@@ -163,11 +163,6 @@ class OptionsFlowHandler(config_entries.OptionsFlow):
                     },
                 },
             )
-            if changed is False:
-                _LOGGER.error(
-                    "Method OptionsFlowHandler.async_step_init: Config entry %s has not been changed",
-                    self.config_entry.entry_id,
-                )
             return self.async_create_entry(
                 title="",
                 data={

custom_components/bluetti_bt/const.py

@@ -42,6 +42,8 @@ DIAGNOSTIC_FIELDS = [
     "max_ac_output_power",
     "max_ac_output_current",
     "bcu_version",
+    "dsp_version",
+    "arm_version",
     "safety_module_version",
     "high_voltage_module_version",
     "power_generation",

custom_components/bluetti_bt/manifest.json

@@ -14,7 +14,8 @@
         { "local_name": "EP600*" },
         { "local_name": "EP760*" },
         { "local_name": "EP800*" },
-        { "local_name": "PBOX*" }
+        { "local_name": "PBOX*" },
+        { "local_name": "EL30V2*" }
     ],
     "codeowners": ["@Patrick762"],
     "config_flow": true,
@@ -24,5 +25,5 @@
     "iot_class": "local_polling",
     "issue_tracker": "https://github.com/Patrick762/hassio-bluetti-bt/issues",
     "requirements": [],
-    "version": "0.1.3"
+    "version": "0.1.5"
 }

requirements.txt

@@ -2,4 +2,10 @@ homeassistant
 bleak_retry_connector
 pyserial
 bluetooth_auto_recovery
-crcmod
+crcmod
+typing
+asyncio
+logging
+bleak
+async_timeout
+aiousbwatcher

test.sh

@@ -1,4 +1,4 @@
 #!/bin/sh
 
-# Execute unittests of python library
+# Execute unittests of python library inside docker
-python3 -m unittest discover -s tests -p "*_test.py"
+sudo docker build --progress=plain -t bluetti-bt-tests .

tests/device_builder_test.py

@@ -8,6 +8,7 @@ from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac70 import AC70
 from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac70p import AC70P
 from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac180 import AC180
 from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac180p import AC180P
+from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac200l import AC200L
 from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac200m import AC200M
 from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac300 import AC300
 from custom_components.bluetti_bt.bluetti_bt_lib.devices.ac500 import AC500
@@ -66,6 +67,14 @@ class TestDeviceBuilder(unittest.TestCase):
         self.assertIsInstance(built, AC180P)
         self.assertEqual(built.address, bt_addr)
 
+    def test_build_ac200l(self):
+        bt_addr = "aa:bb:cc:dd:ee:ff"
+        bt_name = "AC200L56786746478"
+        built = build_device(bt_addr, bt_name)
+
+        self.assertIsInstance(built, AC200L)
+        self.assertEqual(built.address, bt_addr)
+
     def test_build_ac200m(self):
         bt_addr = "aa:bb:cc:dd:ee:ff"
         bt_name = "AC200M56786746478"

tests/device_struct_test.py

@@ -0,0 +1,24 @@
+"""Unittest for device struct."""
+
+import unittest
+
+from custom_components.bluetti_bt.bluetti_bt_lib.utils.commands import ReadHoldingRegisters
+from custom_components.bluetti_bt.bluetti_bt_lib.utils.struct import DeviceStruct
+
+class TestDeviceStruct(unittest.TestCase):
+    def test_get_read_holding_registers(self):
+        struct = DeviceStruct()
+
+        struct.add_swap_string_field("device_type", 110, 6)
+        struct.add_sn_field("serial_number", 116)
+        struct.add_decimal_field(
+            "power_generation", 154, 1
+        )
+        struct.add_uint_field("total_battery_percent", 102)
+
+        registers = struct.get_read_holding_registers()
+
+        self.assertGreater(len(registers), 0)
+
+        for reg in registers:
+            self.assertIsInstance(reg, ReadHoldingRegisters)